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... 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 ... 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: 2 - Score: 193 - 15 May 2017 - URL: /sf042/sf042p22.htm
... 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 ... . (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: 2 - Score: 153 - 15 May 2017 - URL: /sf095/sf095b09.htm
... 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 ... 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, Stan; "Right Brain, Left Brain," New Scientist, 87:790, 1980.) From Science Frontiers #13, Winter 1981 . 1981-2000 William R. Corliss ...
Terms matched: 2 - Score: 141 - 15 May 2017 - URL: /sf013/sf013p12.htm
... 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 is difficult to decide whether sensing an unseen presence is fundamentally different from the sense of being stared at by a real person! The implication of the above experiments is that magnetic fields can induce "mystical presences." Magnetic fields are everywhere; certainly around UFOs, probably around Stonehenge and the Oracle at Delphi. The explanatory possibilities here are endless. From Science Frontiers #117, MAY-JUN 1998 . 1998-2000 William R. Corliss ...
Terms matched: 2 - Score: 126 - 15 May 2017 - URL: /sf117/sf117p13.htm
... Differences between Normal Human Brains BHO20 Remarkable Capabilities of Badly Damaged Human Brains BHO21 The Existence of Electrical Brain Waves BHO22 Capabilities of the Human Brain Greatly Exceed Requirements for Survival BHO23 The Experimental Lack of Memory Traces BHO24 High Complexity and Sophistication of the Human Brain Brain Asymmetry in Musicians Detection of Rapid Motion by Blind People Heart "Music" Wide Sclera in Human Eyes Unique among Animals Curious Effects of Severing the Corpus Callosum Information-Transfer Mechanism in the Eye-Brain System "Miraculous" Recovery of Sight People with Two Working Hearts Formation of New Brain Neurons Cause of the "Moon Illusion" "Simultanagnosia": The Inability to Deal with Two Objects Simultaneously Handedness and the Size of the Corpus Callosum Gender Differences in Brain Information Processing Mirror-Image Organs Cooked Tubers and Brain Evolution! Multiplication and Physical Motion ... Dendrites in Brain Information Processing in the Eye Itself Sign Language Is Processed in the Auditory Cortex Motion Processed by Special Brain Cells The "Seeing" Ear Role of Olfactory Receptors in Physical Development Information Transfer in the Cerebrospinal Fluid Utility of the Appendix Nostril Cycling [BHF3] BHT UNUSUAL SENSES AND FACULTIES BHT1 Telescopic Vision BHT2 Moonblindness BHT3 Blindsight BHT4 A TV-Snow Visual Phenomenon BHT5 Color-Vision Deficiency of Ancient Peoples BHT6 Color Sensitivity Correlated with Lunar Phase BHT7 Anomalies in the Evolution of Color Vision BHT8 Dermo-Optical Perception [PHD] BHT9 Visual Phenomena from the Passage of High-Energy Particles through the Eyes BHT10 Facial Vision or Human Echo Ranging BHT11 Our Sound-Suppression Faculty BHT12 Electromagnetic Radiation Perceived as Sound BHT13 Hearing under Anesthesia BHT14 Variability and Sophistication of Human Tone Perception BHT15 Anomalous Communication in Children ...
Terms matched: 2 - Score: 125 - 15 May 2017 - URL: /cat-biol.htm
