What are differences between the primary and association cortex of
the brain? What are their respective...
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Psychology
What are differences between the primary and association cortex ofthe brain? What are their respective functions?
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The association cortex is the cerebral cortex outside the primary areas It is essential for mental functions that are more complex than detecting basic dimensions of sensory stimulation for which central sensory regions appear to be necessary In humans the association areas are by far the most developed part of the cerebral cortex and the brain in general These areas are essential for perceptual activities like recognizing objects toasters horses trees words etc rather than simple contours edges or sensory qualities like color or pitch Association areas take up an increasingly more significant percentage of the cerebral cortex as brain size increases among different species illustrates the increase in the relative size of association areas as the brain gets more significant The association cortex is shown as the pink area outside the primary cortical areas It is much larger and takes up a much more substantial percentage of cortex on the humans cerebral hemisphere than on the rats The surface area of the human cerebral cortex and monkeys dogs and horses as well is further enlarged by the sulci and gyri shown by the curving lines on the cerebral hemispheres Primary and cortical association areas in humans and rats The pink field which shows the association cortex is much larger and also takes up a
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