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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Try wiggling each of your fingers one at a time. Now try wiggling each of your toes.
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Ask a friend to close their eyes. Using a random number of fingers (one to four), press down on the skin of your friend’s. Ask your friend to report how many fingers you are using. Repeat the same procedure on the palm or back of your friend’s hand.
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Try wiggling each of your fingers and toes at the same time.
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Press down hard on the skin of your friend forehead, let go and record how long it take for the skin to return to its natural colour.
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Detailed explanation-1: -The somatosensory cortex is a region of the brain which is responsible for receiving and processing sensory information from across the body, such as touch, temperature, and pain.
Detailed explanation-2: -The primary somatosensory cortex (S1) plays a critical role in processing afferent somatosensory input and contributes to the integration of sensory and motor signals necessary for skilled movement.
Detailed explanation-3: -The primary somatosensory cortex is responsible for the first stage of cortical processing. Within the primary sensory cortex, discriminative touch and proprioceptive information from overlapping areas may be combined such that a cortical neuron may respond to both cutaneous and proprioceptive stimulation of a digit.
Detailed explanation-4: -After somatosensory cortex damage, some survivors experience sensory impairments or movement-related effects such as numbness, tingling, or poor balance.