Each of the five senses activates a separate area of
the cerebral cortex, the sheet of neurons that makes up the outer layer of
the brain's hemispheres. This brain is a computer reconstruction based on
data from magnetic resonance imaging (MRI). Approximate locations of the
primary sensory areas are shown in color. Most of the activity takes place
within convolutions that cannot be seen from the surface of the brain.
Photo by: Michael Freeman/MRI Scan by John Belliveau, NMR Center,
Massachusetts General Hospital.
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