BIOLOGICAL BASES OF BEHAVIOR
THE CEREBRAL CORTEX
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Which parts of the body are coordinated by the largest area of the somatosensory cortex?
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torso and legs
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feet and legs
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feet and hands
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hands and face
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Explanation:
Detailed explanation-1: -It has a large representation of the face and hands compared with the torso, arms and legs. Why is this? The reason is the brain maps each sensory receptor onto the cortex rather than considering the area of the body where the sensor is located.
Detailed explanation-2: -For instance, the hands and the lips are very sensitive to sensations and so there is a large area of the somatosensory cortex which is dedicated to sensation in these areas. Whereas body parts such as the back are less sensitive to sensations and would therefore have a much smaller area in represented in the cortex.
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