Experimental data and theoretical work on the inheritance of handedness and cerebral dominance are reviewed. A two-gene, four-allele model, one locus pertaining to left or right hemispheric dominance and the other to contralateral or ipsilateral hand control relative to the dominant hemisphere, is constructed. It is in excellent agreement with all quantitative information regarding this problem. Refinements designed to explain relevant qualitative facts are proposed and discussed. National Center for Biotechnology Information , U. Journal List Genetics v.
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Intelligence and Evolutionary Biology pp Cite as. The presence of cerebral asymmetry in such diverse groups can be explained by a parallel evolution in response to common selective pressures for an efficient use of neural space, in which different neural programs that serve different functions are organized in opposite sides of the brain.
A neural organization that is optimally designed to serve one set of functions cannot normally be optimally designed to serve a different set of functions, and lateral differentiation allows the development of two different operational programs that serve different and equally important processes. Unable to display preview.
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Intelligence and Evolutionary Biology pp Cite as. The presence of cerebral asymmetry in such diverse groups can be explained by a parallel evolution in response to common selective pressures for an efficient use of neural space, in which different neural programs that serve different functions are organized in opposite sides of the brain. A neural organization that is optimally designed to serve one set of functions cannot normally be optimally designed to serve a different set of functions, and lateral differentiation allows the development of two different operational programs that serve different and equally important processes. Unable to display preview.
The Evolution of Human Cerebral Asymmetry
Jerre Levy born April 7, is an American psychologist and researcher of the brain. She has studied the relationship between the cerebral hemispheres and visual -oriented versus language -oriented tasks in split-brain surgery patients. Jerre Levy was born in Birmingham, Alabama on April 7, She earned a degree in psychology from the University of Miami in She attended graduate school there for a year and a half before transferring to Caltech , where she worked in Roger Sperry 's laboratory.
A Model for the Genetics of Handedness