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What is Chapter Eight The Physiological and Neurological Bases of Intelligence about?

The man has brains" is the somewhat elliptical metonym by which people often refer to outstanding instances of intelligence. It is not unreasonable to see intelligence -and other traitsin the brain, for the hierarchy of evolutionary intelligence is clearly connected with brain size, and we know also that injury to the brain can produce idiocy. It is, however, a connection that is easily oversimplified, being an instance of that perennial escape of psychologists into the concreteness of brain neurology, when the analysis of behavior becomes too difficult for them. It is a misguided direction of escape. for neurology has as many unsolved puzzles as psychology. Nevertheless, there are also some simplicities, such as that human brain size and intelligence are positively correlated and, as in other fields, the correlation gets better as both terms are more accurately measured. Students have too long been taught that head size is quite unrelated to intelligence. This overlooks that head size is'not brain size, that ratio to body size is important, that brain size needs correcting for age decline, that head size may change through disease (hydrocephalus) and so on. The evidence seems to b

Published

1986

Language

EN