Which is true regarding somatotopic organization? Select one: a. Certain areas of the body have much higher representation in the primary somatosensory cortex than other areas, and these regions will have finer tactile discrimination. b. The representation of a given area of the body in the primary somatosensory cortex is directly proportional to the size of that body area (e.g., the right index finger has less representation than the right thigh). c. The receptive fields for somatosensory neurons are circular and relatively consistent in size across areas of the body, but areas of the body with the finest tactile discrimination have many more neurons representing them in the primary somatosensory cortex. d. There is equal representation of all areas of the body in the primary somatosensory cortex
Added by Xavier P.
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Certain areas of the body have much higher representation in the primary somatosensory cortex than other areas, and these regions will have finer tactile discrimination. This statement is true. The primary somatosensory cortex has a somatotopic organization, Show more…
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Supreeta N.
The area of the sensory cortex in the cerebrum devoted to each part of the body a. is exactly the same as the area of the motor cortex devoted to each region of the body. b. depends on how far away that region of the body is from the brain. c. is greater for regions of the body that are most sensitive to touch. d. is smaller on the left cerebral hemisphere than on the right cerebral hemisphere.
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