e mërkurë, 22 gusht 2007

DIVISION OF LABOR IN THE CORTEX



DIVISION OF LABOR IN THE CORTEX.--Nor does the division of labor in the
nervous system end with this assignment of work. The cortex itself
probably works essentially as a unit, yet it is through a shifting of
tensions from one area to another that it acts, now giving us a
sensation, now directing a movement, and now thinking a thought or
feeling an emotion. Localization of function is the rule here also.
Certain areas of the cortex are devoted chiefly to sensations, others to
motor impulses, and others to higher thought activities, yet in such a
way that all work together in perfect harmony, each reenforcing the
other and making its work significant. Thus the front portion of the
cortex seems to be devoted to the higher thought activities; the region
on both sides of the fissure of Rolando, to motor activities; and the
rear and lower parts to sensory activities; and all are bound together
and made to work together by the association fibers of the brain.


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