Question

Does the somatosensory cortex have a columnar organization similar to the visual cortex?

a. Yes, alternating columns contain neurons responding to pleasant and aversive stimuli

b. No, columnar organization doesn’t make sense in the somatosensory system because the receptor types are too diverse to dedicate a full column to each sensory attribute.

c. No, the body is already represented several times in the somatosensory cortex, with different modalities assigned to different brain regions

d. Yes, alternating columns contain neurons responding to inputs arriving on the surface of the body and internal receptors

e. Yes, alternating columns contain neurons linked to slowly and rapidly adapting receptors.

Answer 1

Correct Anaswer is Option D-Yes, alternating columns contain neurons responding to inputs arriving on the surface of the body and internal receptors

The Primary and secondary somatosensory areas subregion are arranged in columnar organization that are similar to the visual cortex in the occipital lobe .

Primary somatosensory area is present in the post central gyrus of the parietal lobe , it is the main sensory cortex area of the Brain which recieve signal from varous sensory receptors present in the periphery of the body via the sensory nerve.

The alternating column in the columnar organization of the somatosensory cortex will recieve information from various sensory receptors on the surface of teh body like touch receptor, pain receptor, pressure receptors,temperature receptor. it also recieve input from the internal sensory receptors in the digestive tract like pain receptor.

The pleasant and aversive stimuli are detected by the amgydala