5a. Feedback projections from visual cortex via the thalamic reticular nucleus t

Question

5a. Feedback projections from visual cortex via the thalamic reticular nucleus to the lateral geniculate nucleus (LGN) are ________ and ________ LGN relay cells.

a. multisynaptic/do not project to

b. excitatory/inhibit

c. modulatory/cause oscillations in

d. inhibitory/excite

5b. Complete sectioning of the corpus callosum leads to _________________.

a. an inability to name objects presented in the right visual hemifield

b. inability to name objects presented in the left visual hemifield

c. deafness for information presented to the right ear via head phones

d. patients having reduced language abilities, especially with respect to syntax

Explanation / Answer

5a. The correct answer is Option B. Feedback projections from visual cortex via the thalamic reticular nucleus to the lateral geniculate nucleus (LGN) are excitatory and inhibit LGN relay cells.

5b. The correct answer is Option A. Complete sectioning of the corpus callosum leads to an inability to name objects presented in the right visual hemifield

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