Use the following to answer questions:
Neuropsychologists can infer from visual testing where in the visual system damage has occurred. Show your neuropsychological acumen by matching the condition in each question with the correct site of damage from the list.
-monocular blindness ___
A)one optic nerve
B)medial visual cortex
C)one optic tract
D)optic chiasm

Question

Quizplus · Accepted Answer

Monocular blindness implies loss of vision in one eye, which is indicative of damage to just one optic nerve.

Answer: D
 The optic chiasm is the point where optic nerve fibers cross over each other, so damage to this location could result in loss of vision in both eyes or in the outermost visual fields of both eyes.

Answer: C
 Damage to one optic tract would result in loss of vision in the opposite visual field from the eye on the same side as the damaged tract, meaning if the left optic tract is damaged, there would be loss of vision on the right side of the visual fields of both eyes.

Answer: B
 The medial visual cortex is responsible for processing and interpreting visual information from the central part of the visual field, so damage to this area would result in loss of central vision, which could manifest as difficulty with reading and recognizing faces.

Use the Following to Answer Questions