126 results found.
... Science Frontiers ONLINE No. 13: Winter 1981 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects Half A Brain Sometimes Better Than A Whole One The orthodox view of the human brain holds that the left or dominant half governs the right side of the body and is concerned with logical thought, verbal analysis, etc. The right side of the brain controls the left side of the body and is responsible for spatial and intuitive thinking. The right side supposed-ly cannot even participate in verbal expression. The two halves of the brain are connected by the corpus callosum. That this interconnection sometimes creates problems is evident from the fact that its severance often leads to dramatic improvement in some types of epilepsy. These split-brain individuals, however, must contend with such bizarre situations as not being able to verbally identify objects seen or felt by the left eye and hand, even though they know what the objects are. Such situations merely confirm the orthodox view of the brain. But when half of the brain is completely removed, the conventional picture of the brain is upset. In one case, a woman with partial paralysis and frequent epileptic seizures had the left side of her brain removed. Her seizures and paralysis disappeared permanently; even more, her personality improved markedly. The half of the brain that remained assumed all brain functions and performed them better than the complete brain had. Conclusion: each half of the human brain has the intrinsic capability of operating as a whole brain despite the usual specialization of the halves. (Gooch, ...
Terms matched: 1 - Score: 319 - 15 May 2017 - URL: /sf013/sf013p12.htm
... Science Frontiers ONLINE No. 49: Jan-Feb 1987 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects Million-cell memories?Brain researchers have long believed that simple memories were stored as "traces" in chains of brain cells. However, E.R . John and his colleagues have confounded such thinking. They have prepared metabolic memory maps of cats' brains using carbon-tagging. In this way, they discern which parts of the brains have been activated during the recall of an element of memory. Such experimentation has demonstrated that huge numbers of brain cells actively participate in the recall of a simple thought. John stated, "I thought we'd find maybe 20,000 to 40,000 cells involved in the learned memory....The shock was that it was so easy to see wide-spread metabolic change....The number of brain cells [between 5 million and 100 million] involved in the memory for a simple learned discrimination made up about one-tenth of the whole brain." The findings of John et al are hotly contested by some brain researchers. One obvious conflict is that if up to 100 million brain cells are involved in storing just one simple memory, the brain will quickly use up all available cells. It must be that individual brain cells can participate in the storage of many different memories. The conventional mem-ory-trace theory would have to be replaced by a new type of memory architecture. (Bower, Bruce; "Million-Cell ...
Terms matched: 1 - Score: 244 - 15 May 2017 - URL: /sf049/sf049p10.htm
... Science Frontiers ONLINE No. 85: Jan-Feb 1993 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects Our Chemical Brain Is our brain merely a network of neurons pulsing with electrical signals -- like the circuits of a computer? Such is the accepted picture of the brain. Unquestionably the brain does rely in part upon the transmission of electrical signals for some of its operations, but it now appears that there is a complementary mode of communication that relies upon chemistry rather than electricity. While the fastest way to transmit signals in the brain seems to be along the neurons and across their points of contact, the synapses, other signals may travel -- a bit more slowly -- by what is termed "volume transmission." Volume transmission is like broadcasting radio waves in three dimensions, except that in the brain the radio waves are replaced by the diffusion of chemical signals. L.F . Agnati et al explain: ". .. our experiments have shown that neurons also release chemical signals into the extracellular space that are not necessarily detected by neighboring cells but by cells far away, in the same way hormones released by a gland into the bloodstream can have effects on cells far away. These processes occur on much longer time scales than does synaptic transmission, and they probably play a distinct role, perhaps regulating the brain's responses to synaptic signals. .. .. . "We might speculate that volume transmission is involved in the neuroendocrine system and the central autonomic system. Changes in the activity of the brain ...
Terms matched: 1 - Score: 221 - 15 May 2017 - URL: /sf085/sf085b99.htm
... Science Frontiers ONLINE No. 36: Nov-Dec 1984 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects Brains Not Hardwired The prevalent conception of the brain compares it to a hardwired computer in which all the wires and components are all permanently soldered together. An equivalent situation would prevail in the brain if all sensory pathways and cells had fixed duties and memories to handle. If the portion of the brain dedicated to speech were damaged, as in a stroke, it could never repair itself. This dogma is now being challenged. A pertinent line of brain research is now underway at the Coleman Laboratory of the University of California in San Francisco, where Michael Merzenich and his associates are studying the brains of monkeys. "Merzenich's findings challenge a prevailing notion that most sensory pathways in the nervous system are 'fixed' or 'hardwired' by the maturation of anatomic connections, either just before or soon after birth. They also address the puzzling question of what forces may be at work when stroke victims partly recover. Do 'redundant copies' of skills exist outside the damaged regions, or is physical damage within the brain repaired over time? Or can old skills be newly established in different, undamaged brain regions." Apparently the brain should really be compared with a reprogrammable computer. Perhaps the brain even stores duplicates of critical "programs"; i.e ., skills. Merzenich's findings go even farther. He finds that the parts of the brain associated with certain skills or data processing move and change shape ...
Terms matched: 1 - Score: 209 - 15 May 2017 - URL: /sf036/sf036p07.htm
... Science Frontiers ONLINE No. 77: Sep-Oct 1991 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects Cooler heads, bigger brains?When anthropologist D. Falk discovered that an automobile's engine was limited in power by its radiator's capacity to cool it, he applied this thinking to the human brain. The human brain, like the automobile engine, must be kept cool if it is to function well. It follows that if the brain of an animal is not functioning well, the body that brain controls will not perform well either. Overheated brains, then, are sure roads to extinction in the highly competitive natural world. A couple million years ago, two groups of human precursors were competing for dominance in Africa. The group that won and subsequently evolved into Homo sapiens had, according to Falk, a better brain-cooling system. The evolutionary development that probably led to this advantage was a more extensive network of emissary veins, which permitted better dissipation of heat. This, in turn, allowed the evolution of larger brains and dominance by Homo sapiens. Other anthropologists, how ever doubt that such a minor change in the circulatory system could account for the emergence of modern man. (Shipman, Pat; "Hotheads," Discover, 12:18, April 1991.) Comment. What an intriguing concept! Perhaps human male baldness also confers more cooling efficiency and is setting the stage for a new expansion of the human brain -- at least the male brain, sorry girls! More seriously ...
Terms matched: 1 - Score: 207 - 15 May 2017 - URL: /sf077/sf077b08.htm
... Science Frontiers ONLINE No. 99: May-Jun 1995 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects Curious Brain Asymmetries Perfect pitchers vs. everyone else. An individual possessing perfect pitch can identify any musical note without comparing it to a reference note. It is said to be a uniquely human talent. (But how can we know?) Language, too, is thought to be be a gift accorded only to humans. Is there a biological connection between these "unique" capabilities? Since language is primarily a left-brain function, it is logical to see if the secret of perfect pitch resides in that half of the brain, too. This is just what a group of researchers headed by G. Schlaug did with the help of magnetic resonance imaging. They compared the planum temporale regions in the brains of 30 musicians (11 with perfect pitch, 19 without) and 30 non-musicians -- all matched for sex and age. The left planum temporale region was larger than the right for both musicians and non-musicians, but in the musicians the asymmetry was twice as great. Furthermore, the musicians blessed with perfect pitch were the most asymmetric of all in this respect. (Schlaug, Gottfried, et al; "In Vivo Evidence of Structural Brain Asymmetry in Musicians," Science, 267: 699, 1995. Nowak, Rachel; "Brain Center Linked to Perfect Pitch," Science, 267:616, 1995) Comment. Perfect pitch is nice to have, but why should it ...
Terms matched: 1 - Score: 204 - 15 May 2017 - URL: /sf099/sf099b06.htm
... Science Frontiers ONLINE No. 15: Spring 1981 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects Is your brain really necessary?John Lorber, a British neurologist, has studied many cases of hydrocephalus (water on the brain) and concluded that the loss of nearly all of the cerebral cortex (the brain's convoluted outer layer) does not necessarily lead to mental impairment. He cites the case of a student at Sheffield University, who has an IQ of 126 and won first-class honors in mathematics. Yet, this boy has virtually no brain; his cortex measures only a millimeter or so thick compared to the normal 4.5 centimeters. Although the deeper brain structures may carry on much of the body's work, the cortex is supposed to be a late evolutionary development that gave humans their vaunted mental powers and superiority over the other animals. If the cortex can be removed with little mental impairment, what is it for in the first place? (Lewin, Roger; "Is Your Brain Really Necessary?" Science, 210:1232, 1980.) Comment. Brain size, then, may mean nothing in comparing ancient and modern human skulls or human brain capacity with those of animals! Where is the seat of intelligence? In some cases of hydrocephalus, the cortex is only paper-thin, but little mental impairments is apparent. From Science Frontiers #15, Spring 1981 . 1981-2000 William R. Corliss ...
Terms matched: 1 - Score: 200 - 15 May 2017 - URL: /sf015/sf015p14.htm
... Science Frontiers ONLINE No. 47: Sep-Oct 1986 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects Brain architecture: beyond genes "The human brain probably contains more than 1014 synapses, and there are simply not enough genes to account for this complexity." .. .. "Neuroscientists at a recent meeting highlighted how extragenetic factors -- including neuronal activity, contact with other cells, radiation, and chemical factors -- influence brain circuitry, especially during development." In computer terms, our brains are constantly reprogramming themselves in response to internal and external forces. (Barnes, Deborah M.; "Brain Architecture: Beyond Genes," Science, 233: 155, 1986.) Comment. Musing in a Lamarckian way, can the brain, as reprogrammed by external influences, ever feed back information to the genes? From Science Frontiers #47, SEP-OCT 1986 . 1986-2000 William R. Corliss ...
Terms matched: 1 - Score: 141 - 15 May 2017 - URL: /sf047/sf047p07.htm
... Science Frontiers ONLINE No. 127: Jan-Feb 2000 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects Our Filtered Brains Beneath the thin bone of your cranium lies an organic information processor of prodigious speed and capacity. We see brief glimpses of its real power in the mental performances of those autistic savants who can tell us instantly the day of the week for January 1, 2022, [Saturday] or draw fantastically detailed and accurate sketches of scenes after just a brief glance. You may scoff, but you could do the same if your consciousness didn't suppress your innate mental talents. There is growing suspicion that our brains process and store just about everything our senses convey to them. Our brain is also a number-cruncher of great power that can "see" calendar pages stretching millennia into the future and far back into prehistory. The most formidible arithmetic problems are child's play to it. Some researchers maintain that it is our consciousness that prevents us from realizing the full potential of this spongy sack of neurons. Consciousness, you see, is a necessary filter that permits only useful, practical information to flash before us as we attempt to deal with the real world. Of what survival value is calendar-calculating in today's world when we have our PCs? Or even yesterday's threat-filled world? (Future worlds? Who knows?) The consciousness filter is only partially effective in autistic savants. It is a bit porous in normal childhood, when streaks of genius sometimes seep through ...
Terms matched: 1 - Score: 124 - 15 May 2017 - URL: /sf127/sf127p16.htm
... Science Frontiers ONLINE No. 48: Nov-Dec 1986 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects Braille And The Brain The human brain apparently can handle more than one stream of input data simultaneously, as shown by J. Hartley's studies of Braille readers. "A chance observation of a skilled blind reader led me to think that reading braille might provide a more natural task for studying the way in which people do two things at once. My studies of my colleague Lewis Jones suggest that he appears to use some form of parallel processing. Jones cannot recall whether or not he was taught to read Braille with two hands, but in common with other skilled readers of Braille, he has done so for many years. Jones' method of reading is typically as follows. The left forefinger starts to read the beginning of the line. It then meets the the right forefinger returning from the line above. When the two fingers touch, the right forefinger continues to read the line while the left forefinger returns to the beginning of the next line. The whole operation is quite smooth and cyclical, as the diagram...shows. However, I was startled to observe that the left forefinger starts to read the next line before the right forefinger has finished the line above. This overlap, demonstrated by my crude data, suggests that Jones appears to be using some form of parallel processing: it seems as if his brain stores initial information from his left forefinger before using it." S. Miller, at ...
Terms matched: 1 - Score: 118 - 15 May 2017 - URL: /sf048/sf048p19.htm
... BBE THE FOSSIL RECORD OF BIRDS BBE1 The Fossil Record of Birds and Associated Paradigms BBE2 Evidence against the Dinosaur Origin of Birds BBE3 Protoavis: A Pre-Archaeopteryx Bird? BBE4 Unresolved Nature of Archaeopteryx BBE5 The Apparent Absence of Transitional Forms of Feathers BBE6 Fossils of Ostrich Ancestors in the Northern Hemisphere BBE7 Controversial Feathers of the London Archaeopteryx Fossil BBE8 Giant Fossil Eggs BBF BODILY FUNCTIONS BBF1 The Avian Respiratory System: Unique, Complex, Sophisticated BBF2 Avian Bodily Functions: Some Oddities BBG GENETICS BBG1 Species mtDNA More Diverse Than Morphology BBG2 Discordance in the Date of Divergence of Modern Birds BBG3 Discordances between Phylogenies Established from Morphology and DNA Analysis BBG4 Dearth of Introns in Birds BBI INTERNAL STRUCTURES AND SYSTEMS BBI1 Avian Magnetoreceptors: Hard to Find BBI2 Curious Internal Structures BBO ORGANS BBO1 Complexity and Sophistication of Some Owl Ear-Brain, Sound-Localization Systems BBO2 Regeneration of Brain Neurons BBO3 Curiosities of Avian Brains BBO4 The Pecten: A Unique Structure in the Avian Eye BBO5 Curiosities of Avian Eyes BBO6 High Complexity and Sophistication of the Avian Eye BBO7 Remarkable Tongue Adaptations BBO8 The Loss and Reduction of Reproductive Organs BBT UNUSUAL TALENTS AND FACULTIES BBT1 Infrasound and Atmospheric Pressure-Change Detection BBT2 Utility of Ultraviolet Vision in Birds BBT3 Echolocation: Parallel Evolution in Birds BBT4 Navigational Feats during Migration BBT5 Homing: Release Experiments BBT6 Curious Migration Phenomena: Navigation Errors? BBT7 Complexity and Sophistication of Avian Navigation BBT8 Inheritance of Migration Data BBT9 The Existence of Avian Migration BBT10 Sensitivity to Impending Weather and Earthquakes BBT11 Possible Unrecognized Senses BBT12 Remarkable Feats of Flight BBT13 The Origin of Avian Flight BBT14 Unanswered Questions Concerning Flightlessness BBT15 Some Curiosities of Avian Flight BBT16 ...
Terms matched: 1 - Score: 117 - 15 May 2017 - URL: /cat-biol.htm
... Science Frontiers ONLINE No. 106: Jul-Aug 1996 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects Does the human brain compute, or does it do more?Of course, the human brain can add and subtract, but does it perform all of its functions by manipulating 1s and 0s, as a PC does? The recent confrontation between G.K . Kasparov, boasting two hemispheres of gray matter, and IBM's Deep Blue chess-playing computer, with its boards of silicon chips, suggests that the human brain may do things somewhat differently. Consider that in the 3 minutes allotted for each move, Deep Blue could evaluate 20 billion moves. This means that it could examine every possible move and countermove for twelve sequences ahead and, in addition, selected lines of attack for 30 sequences. Kasparov was obviously doing no such computation. Yet, he won two, drew two, and lost only one game. IBM's A.J . Hoane, Jr., remarked that chess geniuses like Kasparov "are doing some mysterious computation we can't figure out." Hoane's use of the words "mysterious computation" tells us that he is a reductionist. The implication is that everything mental can be reduced to manipulating those 1s and 0s. In reality, Kasparov's brain may have been innovating, working out new strategies, discerning Big Blue's weaknesses. These "higherlevel" functions are needed when the problem (chess) is too complex for a computer to evaluate all ...
Terms matched: 1 - Score: 108 - 15 May 2017 - URL: /sf106/sf106p00.htm
... nature of anomaly research occasionally uncovers connections between diverse areas of research. We recount one such instance here. On one hand is the neurological research of M.A . Persinger, at the Laurentian University, inquiring into the claimed effects of minute electromagnetic signals, such as those observed in the geomagnetic field, upon human consciousness and perception. On the other hand, we have R.G . Jahn's work in the Princeton Engineering Anomalies Research (PEAR) program, which looks into the anomalous information transfer between humans and the environment, as claimed to be seen in psychokinesis and remote viewing experiments. The research goals and methodologies differ, and the resulting reports couched in different terminologies, but the similarities are what is really important. Both scientists are exploring unconventional information pathways connecting the human brain (consciousness) and the environment. The pathways are open in both directions. First, we quote the summary from a recent Persinger paper. The jargon may be technical, but one can readily visualize the human brain immersed in a sea of signals -- nominally electromagnetic but possibly of other sorts. "Contemporary neuroscience suggests the existence of fundamental algorithms by which all sensory transduction is translated into an intrinsic, brain-specific code. Direct stimulation of these codes within the human temporal or limbic cortices by applied electromagnetic patterns may require energy levels which are within the range of both geomagnetic activity and contemporary communication networks. A process which is coupled to the narrow band of brain temperature could allow all normal human brains to be affected by a subharmonic whose frequency range at about 10 Hz would only ...
Terms matched: 1 - Score: 102 - 15 May 2017 - URL: /sf104/sf104p14.htm
... Science Frontiers ONLINE No. 31: Jan-Feb 1984 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects The Kaleidoscopic Brain "It first hit me early in the morning of December 27, 1970. Suspended in the dreamy state just before waking and with my eyes still closed, I experienced an extraordinarily vivid visual image. Extending before me was an infinite array of diamond-shaped amber regions; each was filled with a regular pattern of black spade-like forms, all pointing straight up, or, in alternate diamonds, to the left. A latticework of delicately beveled edges, gleaming like polished gold, framed with diamonds. The whole array shimmered before me in perfect amber and gold splendor for what must have been several seconds." This kind of geometrical visual experience occurs rarely to some people during "twilight" states just before falling asleep or waking. Direct pressure on the optic nerve produces similar geo meters' delights; so can drugs, fever, sleeplessness, and other altered states of consciousness. Migraine headaches, too, are often presaged by floating, semicircular fields of closely spaced parallel lines or bars arranged in zigzag patterns. This geometrical visual phenomenon may, like a berserk TV screen, be diagnostic and betray regularities in the brain's circuitry. The kaleidoscopic patterns seem to occur when imput signals from the eyes are weak or suspended, leaving the brain to generate its own "favorite" patterns. (Shepard, Roger N.; "The Kaleidoscopic Brain," Psychology Today, 17:62, June ...
Terms matched: 1 - Score: 97 - 15 May 2017 - URL: /sf031/sf031p20.htm
... Science Frontiers ONLINE No. 123: May-Jun 1999 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects Phantoms Of The Brain In his review of a book with the above title (by V.S . Ramachandran and S. Blakeslee), D. Papineau repeats three irresistible anecdotes from the book. The people involved had either lost limbs or were partially paralyzed, so these three tales are at once sad, bizarre, and amusing. The first two anecdotes involve amputees experiencing the phantom-limb phenomenon. The accepted explanation of this phenomenon is that the irritated stump of an amputee sends nerve messages that deceive the brain into signaling that the limb is there after all. Ramachandran, a neurologist, has shown that this theory is incorrect. Instead, he asserts, when the area of the brain assigned to the lost limb no longer receives sensory input from the area, it begins to react to sensory input arriving at adjoining areas in the brain. In other words, the idle area "overhears" nearby signals that are being processed and acts upon them in error. This view explains why by simply stroking a man who had lost an arm, Ramachandran discovered two virtual hands in the man's face and shoulder. A touch on the man's cheek brought the response, "You're touching my thumb." The second anecdote is explained by the fact that the area in the sensory cortex assigned to the genitals is located next to that for the feet. Genital stimulation of people who have lost a foot ...
Terms matched: 1 - Score: 95 - 15 May 2017 - URL: /sf123/sf123p14.htm
... Science Frontiers ONLINE No. 35: Sep-Oct 1984 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects Sinister Development In Ancient Greece The unprecedented genius of Ancient Greece remains unexplained. Why the sudden surge of "civilized" activities: drama, poetry, philosophy, mathematics, and even science? It was all because the Ancient Greeks developed an alphabet that included vowels in addition to the consonants. The Greek language became a full phonetic representation of language. The left side of our brain, it seems, is much more capable than the right in matters phonetic. In contrast, other forms of writing in the ancient world, such as hieroglyphics and vowelless alphabets, are better handled by the right side of the brain. (As an aside, it is interesting that, in the modern world, Japanese and Chinese are better processed by the right side of the brain, while the phonetic representations of language, such as English, are handled better sinistrally.) Back in Ancient Greece, the new alphabet shifted language activities to the left side of the brain. According to J.R . Skoyles, this "unlocked" left-brain competences that had previously been analogous right-brain competences. The newly liberated competences involved rational, analytical, and logical faculties. Thus from the addition of a few vowels sprang Ancient Greece and, in time, modern civilization. (Another aside: Each side of the brain seems to have the potential for performing all necessary functions, but the left side is better at some than the right ...
Terms matched: 1 - Score: 87 - 15 May 2017 - URL: /sf035/sf035p02.htm
... Science Frontiers ONLINE No. 39: May-Jun 1985 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects It's easier to hypnotize right-handers Successful hypnotic induction requires that the subject focus intently upon the hypnotist. Subjects with left-brain dominance (right-handers) are usually able to concentrate their attention better than right-brain people. They therefore enter the trace state more readily. However, once hypnotized, the left-brain-dominated subjects shift into the right-brain mode. It seems that the hypnotic state, with its dream-like quality, altered time sense, etc., is associated with the right brain. Lefthanders, who are always in the right-brain mode, possess 'broadened attention' and resist hypnotic induction more than right-handers. (Grist, Liz; "Hypnosis Relies on Left-Brain Dominance," New Scientist, 36, August 2, 1984.) Comment. As if to balance things out, Nature has apparently made left-handers more talented in the arts and other endeavors. In any case, only trends are involved here; exceptions are everywhere. From Science Frontiers #39, MAY-JUN 1985 . 1985-2000 William R. Corliss ...
Terms matched: 1 - Score: 87 - 15 May 2017 - URL: /sf039/sf039p20.htm
... Science Frontiers ONLINE No. 84: Nov-Dec 1992 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects THE WOMAN WHO COULDN'T DESCRIBE ANIMALS The astounding complexity of the human brain was underscored recently by a 70-year-old woman, who could describe anything she saw except animals. The woman had an immune-system disorder that had damaged a small portion of her brain's temporal lobe. Her other mental faculties were intact. "The woman could name plants, foods, and inanimate objects and describe them without hesitation. The scientists were impressed that when shown a trellis, not exactly your everyday object, she could correctly name it and describe its cross-hatched geometry. "But when shown a squirrel or a dog, she froze. She couldn't find the right name for either, nor could she describe their size or shape or furry coats. "Her deficit, involving only a tiny portion of her language skills, was amazingly narrow." (Bor, Jonathan; "The Woman Who Couldn't Describe Animals," Baltimore Sun, p. A1, September 7, 1992.) The implications of this strange case were described in Science News: "The peculiar inability of a 70-yearold woman to name animals has led scientists to propose that the brain harbors separate knowledge systems, one visual, the other verbal or language-based, for different categories of living and inanimate things, such as animals and household objects." (Bower, B.; "Clues to ...
Terms matched: 1 - Score: 79 - 15 May 2017 - URL: /sf084/sf084p15.htm
... Science Frontiers ONLINE No. 105: May-Jun 1996 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects English Muddles The Brain "A boy who struggles to read English primary-school storybooks yet has no trouble with university physics textbooks in Japanese is challenging current thinking on dyslexia. The 17year-old boy, known as AS, is the first person shown to be dyslexic in one language but not another." AS has English-speaking parents but lives in Japan, where he attends Japanese primary school. He scores poorly in reading English, even lagging behind his Japanese schoolmates, but he understands English like a native. AS is also taught to read the Japanese form of writing called "kanji", in which the symbols carry meaning but have no phonetic value - unlike written English. Curiously, AS reads kanji easily, exhibiting no problems in his visual processing skills. He also does well with the other type of Japanese writing called "kana", where symbols do correspond to certain sounds. Written English is the problem! AS presents psychologists with two enigmas: If, as currently believed, a specific part of the brain is reserved for reading, and a person has trouble with one language, it seems logical that he should have difficulties with all languages. The conventional theory of dyslexia asserts that it is associated with visual processing. If so, AS should find kanji even more troublesome than English. (Motluk, Alison; "Why English Is So Hard on the Brain," New Scientist, p. 14 ...
Terms matched: 1 - Score: 79 - 15 May 2017 - URL: /sf105/sf105p13.htm
... Science Frontiers ONLINE No. 28: Jul-Aug 1983 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects Different personalities: different brainwaves Psychologists have always wondered how a single brain could harbor several personalities, as is the situation in the so-called MPD (Multiple Personality Disorder). Are the different personalities really separate physiologically? Are they faked? Psychological testing of the separate personalities, conducted at different times when each personality was 'in charge,' seemed to indicate discrete personalities, even though one personality might know of the existence of one or more of the others in the same brain. Brain-wave tests were even more conclusive. Each personality had its own distinct set of brain waves in response to identical stimuli. In effect, the brain was operating in a different mode for each personality. (Anonymous; "Multiple Personality Not All in the Mind," New Scientist, 98:290, 1983.) Comment. Could the ability of the brain to operate in different modes be turned into an asset rather than an affliction? After all, computers can be made more effective when they execute several programs at once. From Science Frontiers #28, JUL-AUG 1983 . 1983-2000 William R. Corliss ...
Terms matched: 1 - Score: 76 - 15 May 2017 - URL: /sf028/sf028p14.htm
... ONLINE No. 134: MAR-APR 2001 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects Sleep-work And Dream-work To dream an animal must sleep, and sleep is a dangerous state in the natural world. The animal is motionless, its senses are diminished; it is very vulnerable. Neither is there any provable biochemical value to sleep. (See BHF31 in Humans II) Yet, a large fraction of an animal's life is spent in this apparently useless and hazardous condition. Why, then, did sleep ever evolve? But with sleep, come dreams, and maybe an answer is to be seen in them. Cats establish long-term memories during sleep. First, it is relevant that an animal's brain (a cat's brain here) seems to be active even when an animal is sleeping deeply but not dreaming. It seems that during an extremely quiet phase of sleep, when researchers thought that nothing much was happening in the [cat's ] brain, groups of cells involved in the formation of new memories signal one another. The signals, discovered only a few years ago, allow cells in many parts of the brain to form lasting links. Then, when a few cells are stimulated during waking hours, the links are activated and an entire memory is recalled. Deep, dreamless sleep has long been thought to be of little value to an animal. Apparently this is not the case. Deep sleep seems to be valuable in memory activation. Score one for sleep ...
Terms matched: 1 - Score: 75 - 15 May 2017 - URL: /sf134/sf134p11.htm
... Science Frontiers ONLINE No. 22: Jul-Aug 1982 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects Conditioned responses that short-circuit the conscious brain Don't let the title of this item deter you; this is serious stuff. We all know about the placebo effect. A sick patient improves because he believes he is getting a helpful medicine, even though it is an inert substance. The reverse works, too, at least in experiments with mice. It seems that mice can be conditioned into believing that an ordinarily delectable substance (saccharin and water) gives them stomach pain, by simultaneously injecting them with a pain-producing chemical. Unexpectedly, this chemical also suppressed the immune system of the mice. The mice, of course, knew nothing about the effect on their immune system. Nevertheless, whenever they received saccharin after being conditioned, their immune system was suppressed even though the pain-producing chemical was not administered. While one can imagine the mice consciously associating saccharin and stomach pain, and their brains somehow sending signals that simulated pain, it seems inconceivable that the mice knew anything about their immune system. We have always assumed that the placebo effect (and its reverse) worked because of the subjects' logical association of cause and effect, but evidently there is something else going on here! (Wingerson, Lois; "Training the Mind To Heal," Discover, 3:80, May 1982.) Comment. This all opens a rather large Pandora's Box, because it implies that ...
Terms matched: 1 - Score: 70 - 15 May 2017 - URL: /sf022/sf022p14.htm
... Science Frontiers ONLINE No. 95: Sep-Oct 1994 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects Music Of The Hemispheres The playing and composition of music has always been considered the near-exclusive province of the brain's right hemisphere. This turns out to be far from the truth. For example, non-musicians use both hemispheres in musical matters; the right side for recognizing melody and intonation, the left for such analytical matters as rhythm and notation. However, professional musicians, as their brain waves demonstrate, use their left hemispheres for just about everything of a musical nature. So much for the right-hemisphere theory! The comparison of magnetic resonance images of 27 right-handed musicians and 27 right-handed nonmusicians have shown that even their brain structures differ. The corpus callosum -- that inter-hemisphere information highway -- is 10-15% thicker in musicians who began their training while young than it is in nonmusicians. Our brain structure is apparently strongly molded by early training. The corpus callosum in musicians is essential in such things as finger coordination. Like a weight-lifter's biceps, it enlarges to accommodate the increased tasks assigned to it. (Anonymous; "Music of the Hemispheres," Discover, 15:15, March 1994.) Comment. It would be interesting to compare the brain structures of mathematicians and nonmathematicians where the dexterity factor is absent. From Science Frontiers #95, SEP-OCT 1994 . 1994-2000 William R. Corliss ...
Terms matched: 1 - Score: 65 - 15 May 2017 - URL: /sf095/sf095b09.htm
... Science Frontiers ONLINE No. 35: Sep-Oct 1984 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects The Immune System As A Sensory Organ John Maddox, the editor of Nature, has written a remarkable editorial on psychoimmunology; that is, the science of the brain's effects on the body's immune system. It is basically a running commentary on new discoveries that are helping us to understand this poorly appreciated relationship. Maddox begins by mentioning the 20-plus-year collection compiled by Professor G.W . Brown, University of London, of life-events that affect the health of outwardly normal people. Typical life-events are the death of a spouse, imprisonment, personal bankruptcy, etc. Everyone seems to recognize -- if only through anecdotes -- that mental states affect health, but how this brain-body link is maintained is hard to pin down. D. Maclean and S. Reichlin (Psychoneuroimmunology, 12: 475, 1981.) have reviewd some of the possible connections. One potential link is through the interaction of the hypothalamus on the pituitary. The pituitary is a source of materials that influence the immune system. Maddox lists several specific candidates, and then observes: "The more radical psychoimmunologists talk as if there is no state of mind which is not faithfully reflected by a state of the immune system." So far, not too radical! But then Maddox comes to an article by J.E . Blalock, University of Texas (Journal of Immunology, 132: ...
Terms matched: 1 - Score: 63 - 15 May 2017 - URL: /sf035/sf035p20.htm
... as the material world. The two "worlds," though are usually only very weakly coupled. However, during the 12-billionyear history of the universe they have had ample time to come into thermodynamic equilibrium. In other words the average temperatures of the material and spiritual worlds are equal; i.e ., 3 K, the same as the microwave background. It is, of course, this low average temperature of the spiritual world that accounts for the chill felt when a spiritual entity (ghost) enters a room and is coupled to the material world. Continuing on this tack, Jones now plans to measure whether holy relics and other material objects with high spiritual value cool faster than non-spiritual objects. He also hopes to work with biological materials, specifically the human brain, which is the seat of consciousness and spiritual thought. Human brains, particularly those of holy men, should be tightly coupled to the cold spiritual world. These human brains should cool much faster than, say, a sirloin steak. Speculating even further, Jones proposes to test semiconductors to determine whether they cool faster than ordinary minerals. If they do and since semiconductors form the brains of computers, it is reasonable to suppose that computers could eventually become conscious entities and perhaps even acquire a spiritual dimension! (Jones, David; "Spiritual Matters," Nature, 398:669, 1999.) Comment. It logically follows that the brains of atheists and those who scoff at things spiritual would cool more slowly than sirloin steak. From Science Frontiers #124, JUL-AUG ...
Terms matched: 1 - Score: 58 - 15 May 2017 - URL: /sf124/sf124p15.htm
... Science Frontiers ONLINE No. 42: Nov-Dec 1985 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects Left-handers have larger interbrain connections The two halves of the human brain are connected by a bundle of nerve fibers called the corpus callosum. The corpus callosum is thought to help integrate the activities of the right and left brains which, for reasons unknown, seem to specialize in different kinds of mental operations. Studies of the corpus callosum reveal that it is about 11% larger in left-handers than in right-handers. In terms of interconnecting nerve fibers this comes to 25,000,000 more for the left-handers. Just what sort of information flows along these myriad pathways is not known, although we do know that left-handers have greater bihemispheric representation of cognitive functions; i.e ., the brain functions are not so specialized in each half of the brain. But why should left-handers and right-handers be different at all? Are they born with unequal corpus callosa? Or are these nerve highways equal are birth and atrophy in right-handers ? (Witelson, Sandra F.; "The Brain Connection: The Corpus Callosum is Larger in Left-Handers, " Science, 229:665, 1985. ) From Science Frontiers #42, NOV-DEC 1985 . 1985-2000 William R. Corliss ...
Terms matched: 1 - Score: 53 - 15 May 2017 - URL: /sf042/sf042p22.htm
... Science Frontiers ONLINE No. 98: Mar-Apr 1995 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects Blindsight Also Occurs In Monkeys Blindsight is an eerie phenomenon. Humans with cortical blindness; that is, they have lost their primary visual cortex through brain damage or disease; can still detect objects and yet be unaware of them. Doesn't sound right, does it? The situation is this: A person, apparently totally blind, can somehow discern the location, form, and size of objects, but they will swear that they "see" nothing at all. In fact, they are blind by all tests. They have blindsight. One explanation of blindsight maintains that the visual cortex has not been totally destroyed, and that functional remnants remain. In scientific terms, blindsight represents "suboptimal functioning of the primary visual cortex." But now, A. Cowey and P. Stoerig report that they have totally removed the primary visual cortex from monkeys' brains. (Something one would not try with humans!) Tests with the visual cortex-less monkeys demonstrated that they possessed blindsight. Therefore, blindsight does not seem to be "suboptimal functioning" of a damaged brain -- at least in monkeys. Blindsight thus remains a mysterious biological function. How do blindsighted humans detect objects of which they are not visually aware? Somehow information about the visual world appears in the brain. (Cowey, Alan, and Stoerig, Petra; "Blindsight in Monkeys," Nature, 373: 247, 1995. Also ...
Terms matched: 1 - Score: 53 - 15 May 2017 - URL: /sf098/sf098b10.htm
... Science Frontiers ONLINE No. 136: JUL-AUG 2001 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects The Eclipsing Of Innate Talents The age effect. An idea going the rounds holds that everyone is really a genius but that his or her innate talents have been eclipsed or suppressed. Age is one factor that is blamed. As a child develops, so goes the theory, its brain is bit by bit swamped by the high-level conceptual thinking required for survival in the modern adult world. The child's innate mathematical genius, musical capabilities, and other "low-level" talents are placed on the brain's back burner by the demands of adulthood. It is a common observation that the young assimilate foreign languages more readily than adults. A less-well-known talent, eidetic imagery (the ability to recall images with photographic precision), is found in some children, but it also usually fades with age. Now, we learn that 8-month-old babies are apparently blessed with perfect pitch, a capability they, too, generally lose as they age. (Hall, Carl T.; "Learning by Infants Isn't Just Baby Talk," The Brain, February 28, 2001. Cr. J. Cieciel.) Removal of mental blocks. Sometimes the barriers that eclipse our innate talents are removed by mental disease. The surprising enhancing effect of dementia on some "low-level" talents was mentioned in SF#133. The same mental barriers also seem to ...
Terms matched: 1 - Score: 53 - 15 May 2017 - URL: /sf136/sf136p13.htm
... Science Frontiers ONLINE No. 70: Jul-Aug 1990 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects Bird Brain Alex can name 80 things, tell colors, and even seems to be able to handle a few abstract ideas. Alex is not a chimp or porpoise. Alex is an African grey parrot, who has been living in an avian Sesame Street for 13 years. Parrots are wonderful mimics and pretty bright as birds go. Nevertheless, skeptics scoff at Alex's accomplishments as only the product of long, intense training. Alex can't be too dumb. Once when he couldn't lift a cup covering a tasty nut, he turned to the nearest human assistant and demanded, "Go pick up cup." Who's training whom? (Stipp, David; "Einstein Bird Has Scientists Atwitter over Mental Feats," Wall Street Journal, May 9, 1990. Cr. J. Covey.) From Science Frontiers #70, JUL-AUG 1990 . 1990-2000 William R. Corliss ...
Terms matched: 1 - Score: 52 - 15 May 2017 - URL: /sf070/sf070b09.htm
... Science Frontiers ONLINE No. 117: May-June 1998 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects Experimental induction of the "sensed presence"Down the millennia, a few individuals in all cultures have claimed they have been visited by spirits, gods, angels, or extraterrestrial entities. C.M . Cook and M.A . Persinger associate these visitations with the phenomenon of "sensed presence" or the awareness of an extrapersonal, incorporeal entity. Cook and Persinger assert first that the so-called "sense of self" is a construct of the brain's left hemisphere -- the side usually associated with language. Second, they hypothesize that a "sensed presence" (spirit, god, etc.) is really only a fleeting right-brain homologue of the left-brain "sense of self," something like a transient shortcircuit between brain hemispheres that probably travels along that interconnecting conduit called the "corpus callosum." Repairing to their laboratory at the Laurentian University, Cook and Persinger asked subjects to press a button when they felt a "mystical presence." Unbeknownst to the subjects, they were occasionally exposed to weak magnetic fields. More often than chance would allow, mystical presences (button pushes) correlated with applications of magnetic fields. (Cook, C.M ., and Persinger, M.A .; "Experimental Induction of the "Sensed Presence" in Normal Subjects and an Exceptional Subject," Perceptual and Motor Skills, 85:683, 1997.) Comments. It ...
Terms matched: 1 - Score: 48 - 15 May 2017 - URL: /sf117/sf117p13.htm
... Science Frontiers ONLINE No. 42: Nov-Dec 1985 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects Taking food from thought M.D . was a stroke victim. The stroke had apparently damaged only a very specific portion of his brain, because his only memory impairment was for the names of fruits and vegetables! When shown the pictures of any fruits or vegetables, M.D . had great difficulty in naming them. However, when given words like pear and broccoli, he easily associated the names with the correct pictures. No other objects were affected. The implication is that the brain stores information like a Thesaurus; that is, like data with like data, all the fruit and vegetable files together. (Bower, B.; "Taking Food from Thought: Fruitful Entry to the Brain's Word Index, " Science News, 1 28:85, 1985. ) (In this connection, refer to the item "Brains Not Hardwired" in SF#36. ) From Science Frontiers #42, NOV-DEC 1985 . 1985-2000 William R. Corliss ...
Terms matched: 1 - Score: 48 - 15 May 2017 - URL: /sf042/sf042p24.htm
... Science Frontiers ONLINE No. 25: Jan-Feb 1983 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects Learning By Injection The following abstract is taken from the Psychological Record. "In an attempt to replicate previous findings that learned information could be transferred from trained donor animals to untrained recipient animals by means of brain extracts, two groups of rats were trained to approach a food cup in response to a discriminative stimulus (click or light). RNA extracted from the brains of these animals was injected intraperitoneally into untrained rats. The two untrained groups showed a significant tendency to respond specifically to the stimulus employed during the training. The results support the conclusion that acquired behaviors can be transferred between animals by transferring brain DNA, and further suggest that the transfer effect is dependent upon and specific to the learning of the donors." (Oden, Brett B., et al; "Interanimal Transfer of Learned Behavior through Injection of Brain RNA," Psychological Record, 32:281, 1982.) Comment. Of course, morphogenic fields, as described in R. Sheldrake's A New Science of Life, could also explain this effect. From Science Frontiers #25, JAN-FEB 1983 . 1983-2000 William R. Corliss ...
Terms matched: 1 - Score: 43 - 15 May 2017 - URL: /sf025/sf025p05.htm
... Science Frontiers ONLINE No. 41: Sep-Oct 1985 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects Scrapie Transmitted By Prions Scrapie is an infectious neurological disorder in sheep. The infectious agent has been isolated, but it consists only of geneless prions. Somehow, these prions, which are merely protein filaments, get into a sheep's brain and replicate themselves to cause scrapie. With no genetic material of their own, how do the prions multiply? Recent laboratory work suggests that the prions subvert a gene that normally dwells in the brain. With the help of this gene, an endless stream of prions emerges, and the animal is sick. In hamsters, which are employed in laboratory research on scrapie, a gene demarcated PrP has been implicated in scrapie. PrP is present in both healthy and infected hamster brains, but no one knows what its normal function is, if indeed it has one. (Anonymous; "Prion Gene," Scientific American, 253:60, July 1985.) Comment. One can make an immediate connection between the traitorous PrP genes in the hamster brains and the excess genetic material in humans and all life forms. Biologists commonly call excess genetic material "nonsense DNA" which only means that they haven't devined its purpose. But, as already sugested, these unused blueprints may have had some past purpose or will be called into action in the future. The purpose may be insidious, as in the case of scrapie, or vital to the organism's survival in some ...
Terms matched: 1 - Score: 43 - 15 May 2017 - URL: /sf041/sf041p08.htm
... Science Frontiers ONLINE No. 126: Nov-Dec 1999 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects The Number Module B. Butterworth, author of the new book The Mathematical Brain , proposes that your brain boasts a tiny module of cells -- just over your left ear -- that endows you with a sense of number. These cells allow you, for example, to grasp instantly "fourness," say the number of corners on a square without counting them one-by-one. Unfortunately, this capability usually does not exceed fiveness. If there were 10 people on a corner, you would have to count them individually -- if you are normal. But some people are abnormal. Recall from SF#125, the savant who could tell at a glance that 111 matches littered the floor without counting each individually. He grasped 111-ness! At the other end of the scale, Signora Gaddi cannot even distinguish that 20 is greater then 10. She cannot use the telephone or catch numbered busses. Facts involving numbers above four are a mystery to her. Even when there are four or fewer objects, she must count them one-byone. Nevertheless, Gaddi's intelligence and social skills are normal. She lost her number-savvy when she suffered a stroke that apparently short-circuited that number module over her ear. Are other mammals equipped with number modules? No one knows. And what forces encouraged the human brain to sprout a few extra cells on the inferior parietal lobule; that ...
Terms matched: 1 - Score: 43 - 15 May 2017 - URL: /sf126/sf126p09.htm
... Science Frontiers ONLINE No. 138: NOV-DEC 2001 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects Born To Enumerate Einstein once said in connection with his celebrated mathematical insights: Words and language...do not seem to play any part in my thought processes. A French scientist, S. Dehaene, sees in this declaration support for his claim that human brains possess a "number sense" that is independent of language and symbols, including even the numerals we use in arithmetic! The numerals, says Dehaene, are needed only in "exact arithmetic," which is a cultural invention and unrelated to the "number sense." Exact arithmetic, in fact, is an activity of our left brain where language is processed. Our general number sense, though, is sited elsewhere; the parietal lobe, to be specific. Dehaene's experiments with babies demonstrate that, even before they can speak or do exact arithmetic, they can do "approximate arithmetic"; that is, they can distinguish between these two sequences of tones: beep-beep, beep-beep, beep-beep beep-beep, beep-beep, beep-beep-beep. This number sense is apparently hardwired in a specific part of the human brain and the brains of a few other animals that have been tested (monkeys and rats). (Baiter, Michael; "What Makes the Mind Dance and Count?" Science, 292:1635, 2001.) Comment. Superficially, distinguishing between strings of beeps would ...
Terms matched: 1 - Score: 43 - 15 May 2017 - URL: /sf138/sf138p10.htm
... Science Frontiers ONLINE No. 133: JAN-FEB 2001 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects New Proteins Rewrite Memories A presumptuous article in the New York Times relates how scientists are trying to explain why two people who have viewed the same event recall it very differently years later. One theory goes like this. It seems that every time an old memory is pulled into consciousness, the brain takes it apart, updates it and then makes new proteins in the process of putting the memory back into long-term storage. The fact that new proteins are made means that the memory has been transformed permanently to reflect each person's life experiences---not the memory itself. (Blakesley, Sandra; "Brain-Updating Machinery May Explain False Memories," New York Times, September 19, 2000. Cr. D. Phelps) Ruminations. This all sounds reasonable, but it assumes that memory is stored in a protein medium of some sort. It is hard to imagine how, say, the multiplication table, can be recorded on a protein "hard drive." Are the bits representing the multiplication table encoded in a line of proteins of different types or in their sequence or, perhaps, their three-dimensional configurations? Does anyone really know what our brain's hard drive looks like? Maybe memory is hologrammic. And when a memory is pulled off the mind's hard drive, how is the information conveyed to the central processing unit, assuming there is one? Is it all ...
Terms matched: 1 - Score: 42 - 15 May 2017 - URL: /sf133/sf133p14.htm
... Science Frontiers ONLINE No. 19: Jan-Feb 1982 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects Anomalous Eeg Discharges Two researchers at the Mayo Clinic have discovered a new, distinctive type of brain-wave burst in the EEG recordings of 65 patients with a wide variety of neurological and brain complaints. These EEGs, which were otherwise normal, would commence quietly but suddenly erupt into strong, rapid, rhythmic pulses. Episodes would last 40-80 seconds, sometimes even longer. The anomalous, high-amplitude waves occasionally occurred while the subjects were asleep. The mystery surrounding this discovery is that the subjects did not notice the discharges and showed no outward signs of this violent brain activity. The 65 patients had little in common except being ill in diverse ways. (Anonymous; "Red Herring," Cycles, 32:200, 1981. Originally in Electroencephalography and Clinical Neurophysiology, 51:186, 1981.) From Science Frontiers #19, JAN-FEB 1982 . 1982-2000 William R. Corliss ...
Terms matched: 1 - Score: 42 - 15 May 2017 - URL: /sf019/sf019p12.htm
... Science Frontiers ONLINE No. 126: Nov-Dec 1999 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects The Vegetable Connection Within the human brain, probably quite close to the number module, there must be a "vegetable module"; that is, a few brain cells that recognize and process information about vegetables. Furthermore, there must be cross-talk between the vegetable and number modules. This is obvious from the following query posted in New Scientist. "Why is it that when you repeatedly ask someone addition problems that all add up to six (such as two plus four, one plus five) for a number of minutes and then ask them to think of a vegetable, 90 per cent of people will say "carrot"? "The person you are asking must have no knowledge of what you are asking them or why. The questions should be asked rapidly, encouraging the person answering to answer them quickly with little thought." (Versteegen, Adam; "Carrot Brains," New Scientist, p. 97, Jule 24, 1999.) From Science Frontiers #126, NOV-DEC 1999 . 1999-2000 William R. Corliss ...
Terms matched: 1 - Score: 42 - 15 May 2017 - URL: /sf126/sf126p00.htm
... Science Frontiers ONLINE No. 46: Jul-Aug 1986 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects Are fruit bats primates?The profound differences between the fruit bat (megabats) and echo-locating, insect-eating bats (microbats) were mentioned above. The primate-like eye-brain system of the fruit bats suggests two possibilities: 1. Primitive bats first developed flight and then the fruit bats developed their primate-like eye-brain systems through "convergent evolution"; or 2. The fruit bats inherited their eye-brain system from closely re lated primates and then developed flight through "convergent evolu tion." R.D . Martin, a physical anthropologist and author of this article, has reviewed the morphological characteristics of the fruit bats and primates. On this basis, he doubts that the fruit bats are pri-mates. Furthermore, molecular studies are also negative. Therefore, possibility #1 above is the more likely one. (Martin, R.D .; "Are Fruit Bats Primates?" Nature, 320:482, 1986.) Comment. In either case, #1 or #2 , we must acknowledge convergent evolution and the likelihood that some subroutine in the genetic code repeats itself in divergent species. Speculative as always, we must ask if the genetic instructions for human or even superhuman intelligence do not reside dormant-for-now in other species. Reference. For more on megabat similarities to primates, go to BMC4 in the catalog volume: Biological Anomalies: ...
Terms matched: 1 - Score: 39 - 15 May 2017 - URL: /sf046/sf046p09.htm
... Science Frontiers ONLINE No. 23: Sep-Oct 1982 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects Remarkable Engineering Design In Nature Two unusual examples of inspired design in nature have been described recently: (1 ) The swordfish possesses special tissues rich in mitochrondria and cytochrome-c that generate heat for the animal's eye and brain. Not only do these heating elements keep the swordfish eye and brain significantly warmer than the surrounding water but they also keep these organs warm and thus more effective during deep dives into the cold ocean depths. (Carey, Francis G.; "A Brain Heater in the Swordfish," Science, 216:1327, 1982.) (2 ) Plants, it seems, developed light pipes long before humans. Certain plant tissues (etiolated or dark-grown) act as multiple bundles of optical fibers and coherently transfer light over distances of at least 2 cm. Optical tests show that these natural light pipes are much more effective transmitters of light than media that simply scatter light. This unsuspected sophistication of Nature's design may require significant revisions in photobiology, which did not allow for such ingenuity. (Smith , Harry; "Light-Piping by Plant Tissues," Nature, 298:423, 1982.) Comment. Since some plants are known to emit light, we would not be surprised, the way things are going, to learn of natural plant lasers! From Science Frontiers #23, SEP-OCT 1982 . 1982-2000 William R. Corliss ...
Terms matched: 1 - Score: 39 - 15 May 2017 - URL: /sf023/sf023p07.htm
... Science Frontiers ONLINE No. 137: SEP-OCT 2001 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects Phantom Bodies The phantom-limb phenomenon is well-known but poorly understood. A person who has lost a limb, or born without one, experiences pain, touch, heat, and many of the other normal sensations in the absent appendage. How can this be? Neuroscientist P. Brugger, at the University of Zurich, asserts the following: The brain contains a representation of the body, and disturbances in relevant neural networks by brain tumors or epilepsy can create the apparitions. Brugger means that the brain seems to have a neurological map of the entire body, even if a person is born without a leg or loses same in an accident. The phantom-limb phenomenon is thereby expanded to a "phantom-body" phenomenon. Continuing in this vein, tumors or those "neurological disturbances" could also produce the sensation of an entire phantom body. Could such whole-body apparitions be the source of the doppelgangers (images of one's self) that have been reported in the parapsychological literature and in folklore? (Holden, Constance, ed.; "Doppelgangers," Science, 291:429, 2001.) From Science Frontiers #137, SEP-OCT 2001 . 2001 William R. Corliss Other Sites of Interest SIS . Catastrophism, archaeoastronomy, ancient history, mythology and astronomy. Lobster . The journal of intelligence and political conspiracy (CIA, FBI, JFK, MI5, NSA, etc ...
Terms matched: 1 - Score: 39 - 15 May 2017 - URL: /sf137/sf137p14.htm
... AND FUTURE Precognition Prophecy Augury (Precognition Using Props) Precognition during Trances Precognition during Hypnosis Precognition during Dreams Pre-Disaster Syndromes Precognition Affected by Geomagnetism Premonitions of Death Prediction of Random Processes Retrocognition Hypnotic Regression Scrying [PLS] PHR REINCARNATION PHENOMENA Memories of Previous Lives Hypnotic Regression Xenoglossy Birthmarks As Proofs of Reincarnation Life after Death PHT ANOMALOUS INFORMATION TRANSFER Ordinary Telepathy Twin Telepathy Long-Distance Mass Telepathy Experiments Transfer of Physical Sensations Transfer of Emotions (Not Folie a Deux or Mass Hysteria) Dream Telepathy Remote Viewing Telepathy Affected by Magnetic Fields Role of Quantum Mechanics in Telepathy Ganzfield Experiments Animal Telepathy Telepathy under Hypnosis Atavistic Nature of Telepathy Geomagnetic Enhancement of Telepathy Psychic Odor/Taste PI INFORMATION PROCESSING PIB INPUT/OUTPUT ANOMALIES Word Blindness Dyslexia Autism Typing Skills Tip-of-the-Tongue Phenomenon Mirror Script Braille and the Brain Optical Illusions Generation of Random Numbers Cocktail-party effect Stuttering Difficulty of Learning English Brain Modularity Attentional Blink Revelation Intuition PIC ANOMALOUS INFORMATION PROCESSING Mathematical Savants Calendar Calculators Musical Prodigies Mechanical Savants Subconscious Time-Reckoning Mental Processing during Sleep Chess Prodigies Accelerated Mental Processes Mnemonists PIG MYSTERIES OF GENIUS AND CREATIVITY Early Appearance of Genius Genius and Mental Illness Origin of "Strokes of Genius" Periodicity in Creativity Humor and Creativity Genius and Season of Birth Aesthetics and Creativity Dream Creativity PII EIDETIC AND AFTER IMAGES Eidetic Imagery Vivid Afterimages Eidetic Imagery and Retardation Eidetic Imagery and Hallucinations Recovery of Eidetic Imagery through Hypnosis PIK CONSCIOUSNESS Consciousness and Hypnosis Nature of Consciousness Free Will Consciousness and Quantum Mechanics [BHT22] PIM ANOMALIES OF MEMORY Capacity of the Human Brain Emotional Enhancement of Memory Learning and Memory under Anesthesia Hypnosis and Memory Pseudomemory Hypnotic Misrecall Mnemonics ...
Terms matched: 1 - Score: 37 - 15 May 2017 - URL: /cat-psyc.htm
... Science Frontiers ONLINE No. 78: Nov-Dec 1991 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects Why do flamingos stand on one leg?This profound question elicited a wide range of replies from readers of New Scientist, some of which are worth recording here. W. Smith supposed that because the flamingo has exceptionally long, thin legs that it was difficult for its heart to return blood from its feet. Therefore, by standing on one leg and occasionally switching, the flamingo prevents blood from collecting in its feet. L.J . Los replied with reference to a phenomenon of which we were unaware: "Farm animals are well known for letting sleep be linked to half of their brain at a time. In this way they can maintain a measure of alertness -- even while looking fast asleep. "Flamingos roost upon one of their legs while the other half of their body is in the sleep stage. When the other half of their brain and body earns a rest, they change legs. A leg that is in the sleep stage would not support the bird as a whole." But P. Hardy had the best answer: "Why do flamingos stand on one leg? So ducks only bump into them half the time." (Various authors; "Flamingo File," New Scientist, p. 52, August 17, 1991.) From Science Frontiers #78, NOV-DEC 1991 . 1991-2000 William R. Corliss ...
Terms matched: 1 - Score: 29 - 15 May 2017 - URL: /sf078/sf078b09.htm
... Science Frontiers ONLINE No. 113: Sep-Oct 1997 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects Can computers have ndes?When HAL, the treacherous computer in the film 2001: A Space Odyssey, was being slowly throttled by the one surviving astronaut, it tried first to negotiate. Then, as board after board of electronic components were disconnected, it burst into the old song A Bicycle Built for Two . It had learned this tune early in its silicon-based life. Surprisingly, real computers can experience similar Near-Death Experiences (NDEs). S.L . Thaler, a physicist at McDonnell Douglas, was studying neural networks designed to mimic the structure and functions of the human brain. Such neural nets can actually learn as programmers train them. As a evening avocation, Thaler devised a program that randomly severed connections in the neural net, in effect destroying the artificial brain bit by bit. When between 10 and 60% of the connections were destroyed, the net spat out only gibberish. Near 90% destruction, though, strange "whimsical" information was produced that was definitely not gibberish. In contrast, untrained neural networks generated only random numbers as they were "put down"! Evidently, HAL's tuneful demise was not so fanciful after all. (Yam, Philip; "Daisy, Daisy," Scientific American, 268:32, May 1993.) Comment. A.C . Clarke, author of 2001, has stated firmly that HAL's name was not chosen ...
Terms matched: 1 - Score: 29 - 15 May 2017 - URL: /sf113/sf113p00.htm
... . Left-handers, the study demonstrated, are much more sensitive to drugs that act upon the central nervous system. Irwin believes that this finding is consistent with the known association of left-handedness with epilepsy and learning disorders. "But perhaps the most exciting aspect of Irwin's hypothesis is that it makes evolutionary sense. 'A greater resistance of right-handers to centrally active substances, when Man was a forager and before he learned to identify non-toxic edibles, would have favoured righthanded survival. This might account for the skew in the present handedness distribution that is unique to humans.'" And why should left-handers be more sensitive to psychoactive substances? Irwin thinks they must absorb or metabolize them differently, or perhaps there is a difference in the blood-brain barrier that affects the transport of substances into the brain. (Grist, Liz; "Why Most People Are Right-Handed," New Scientist, 22, August 16, 1984.) From Science Frontiers #36, NOV-DEC 1984 . 1984-2000 William R. Corliss ...
Terms matched: 1 - Score: 26 - 15 May 2017 - URL: /sf036/sf036p18.htm
... but the apparently immutable protons in the nucleus of every atom are slowly dissolving. Eventually -- in more than a quadrillion years -- nothing will be left of the universe but a dead mist of electrons, photons, and neutrinos." (Flam, Faye; "Could Protons Be Mortal after All?" Science, 257:1862, 1992.) The death of memory. With increasing entropy and decaying protons on their minds, it comes as no surprise that physicists likewise believe that when one dies, that's it . An afterlife is impossible. How do physicists conclude this? In a letter to the American Journal of Physics, J. Orear proffered an interesting sort of "proof": "One such proof: human memory is stored in the circuitry of the brain and after death this circuitry completely decomposes." But not all physicists were satisfied with this simplistic view. In a follow-on letter, J.B .T . McCaughan asked how Orear knew that memory is limited to the brain's neuron circuitry. Perhaps there is something that the reductionists are missing. McCaughan then states that Orear's assertion would be negated if people really did return from the dead. He refers to the numerous accounts in the Scriptures in which wit nesses attested that some individuals did indeed come back to life. (Yes, this is all printed in the American Journal of Physics!!) After all, concludes McCaughan, with respect to witnesses, ". .. so much in life depends on such evidence, even the credibility of phys ...
Terms matched: 1 - Score: 25 - 15 May 2017 - URL: /sf085/sf085u14.htm
... Science Frontiers ONLINE No. 133: JAN-FEB 2001 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects Unlocking Hidden Talents Dementia is a devastating illness. The brain deteriorates slowly. Sometimes, though, it seems like the illness strips away barriers and reveals hidden or suppressed talents, as seen in the two dementia patients described below. One 53-year-old man, a car stereo installer with a 10th-grade education and no prior interest in art, suddenly began painting. At first, he drew simple still lifes of vases and bridges. But his work became increasingly sophisticated. Eventually, he was painting Indians, churches and haciendas recalled from distant memories of his youth. Similarly, a 51-year-old housewife who had never had artistic training took up painting. She initially created unsophisticated images of rivers, ponds and rural settings; later, elaborate and sometimes eccentric versions of the works of great masters. Unfortunately, such new-found talents are short-lived. They, too, deteriorate. (Stein, Rob; "Patients' New Gift Paints Clearer Image of Disease," The Brain in the News, p. 7, October 30, 1998. Cr. J. Cieciel) Comment. This peeling away of mental barriers suggests that we all have hidden or suppressed capabilities. Perhaps, some day, we will know how to unlock these in normal people. It is pertinent here that in idiot savants these mental barriers are also somehow removed to expose remarkable mathematical talents, such as calendar calculating ...
Terms matched: 1 - Score: 25 - 15 May 2017 - URL: /sf133/sf133p15.htm
... shell for its very deep dives. What looks like a shell is its thick, leathery carapace -- a strange streamlined structure with five to seven odd "keels" running lengthwise. These turtles are warm-blooded , and able to maintain their temperatures as much as 10 F above the ambient water, just as the dinosaurs apparently could. The bones of the leatherback are more like those of the marine mammals (dolphins and whales) than the reptiles. "No one seems to understand the evolutionary implications of this." Leatherbacks dive as deep as 3000 feet which is strange because they seem to subside almost exclusively on jellyfish, most of which are surface feeders. Like all turtles, leatherbacks can stay submerged for up to 48 hours. Just how they do this is unexplained. Their brains are miniscule. A 60-pound turtle possessed a brain weighing only 4 grams -- a rat's weighs 8! Leatherbacks' intestines contain waxy balls, recalling the ambergris found in the intestines of sperm whales. The stomachs of leatherbacks seem to contain nothing but jellyfish, which are 97% water. Biologists wonder how the huge, far-ranging leatherback can find enough jellyfish to sustain itself. (McClintock, Jack; "Deep-Diving, WarmBlooded Turtle," Sea Frontiers , 37:8 , February 1991.) From Science Frontiers #76, JUL-AUG 1991 . 1991-2000 William R. Corliss ...
Terms matched: 1 - Score: 25 - 15 May 2017 - URL: /sf076/sf076b07.htm
... Science Frontiers ONLINE No. 84: Nov-Dec 1992 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects The Hunt For The Magnetoreceptor When magnetite particles were found in organisms from bacteria to bats, it was assumed that here was the long sought magnetoreceptor which animals used for magnetic navigation. But so far, biologists do not have the slightest notion how such magnetite particles can be turned into a "magnetic sense," which sends the brain information on the direction of the geomagnetic field or, perhaps, draws a magnetic map of sorts. A completely different sort of magnetreceptor is now under investigation, one that humans may also unknowingly possess. It utilizes special photoreceptors that employ an electron-spin resonance process which is modulated by the geomagnetic field. Some of our very sensitive magnetometers use similar phenomena. The biological version of such a receptor would be connected to the brain, as the eye is, and send signals as to the direction of the earth's magnetic field. Sounds interesting, but is there any basis for thinking such a sophisticated gadget could have evolved? It seems that some experiments with newts by J.B . Phillips and S.C . Borland support the idea. The newts were first trained to orient themselves in a certain direction with respect to the geomagnetic field. "When tested under one of four artificial field alignments (magnetic north at geographic north, east, south or west), the newts kept their training directions constant relative to the magnetic rather than the geographic system of reference, but they selected ...
Terms matched: 1 - Score: 24 - 15 May 2017 - URL: /sf084/sf084b99.htm
... the floor, in one case." Snyder's intriguing conclusion is that ". .. we believe that everyone has the underlying facility to perform lightningfast integer arithmetic." (Highfield, Roger; "Study Adds Up to Formula for Math Genius," Chicago Sun Times , March 23, 1999. Cr. J. Cieciel) A more technical review of the SnyderMitchel work has appeared in Nature. There, N. Birbaumer focussed on that mysterious barrier that supposedly prevents most of us from utilizing our innate genius. Unfortunately, his explanations are a bit murky and jargony. We normal people cannot use our innate talents "because we process information in a concept-driven way." Savants, however, can tap these capabilities because of "a functional or pathological loss of executive brain centres." In other words, the way we are programmed to think blocks or suppresses access to our reservoir of mathematical talents. In his review, Birbaumer adds that the work of Snyder and Mitchel is contradicted by studies of non-savant geniuses, and, especially, experiments in which ordinary people are trained intensively to match the mental performances of the savants. (Birbaumer, Niels; "Rain Man's Revelations," Nature, 399:211, 1999.) Comment. Apparently, we can wear down that barrier separating us from genius by long, hard training -- at least when it involves arithmetic skills. As Edison is reputed to have said, genius is 10% inspiration and 90% perspiration. Or, possibly, we can program our "executive brain ...
Terms matched: 1 - Score: 24 - 15 May 2017 - URL: /sf125/sf125p00.htm
