Patient T.N.had successive strokes that lesioned his V1 region in both hemispheres.What was the result?
A)T.N.developed object agnosia, but otherwise he could see.
B)T.N.could not see, but he still could make some visual responses.
C)T.N.showed partial vision that was consistent with macular degeneration.
D)T.N.saw the world as if it was a series of still photographs.

Question

Quizplus · Accepted Answer

Lesioning of V1 region in both hemispheres would result in complete visual blindness or cortical blindness. However, the patient may still be able to make some visually-guided responses due to residual functioning in subcortical visual pathways. This is known as blindsight. Therefore, option B is the correct answer. The other options are not consistent with the effects of bilateral V1 lesions.

Patient TN