A patient who demonstrates the phenomenon of blindsight
A)experiences great difficulty in using visual information to guide eye movements or to reach for visual objects.
B)has selective brain injury to the superior colliculus.
C)can localize stimuli that lie inside her scotoma without any subjective experience of them.
D)will be able to report visual stimuli only if they are large and bright relative to the background.

Question

Quizplus · Accepted Answer

Blindsight refers to the ability to detect visual stimuli without any conscious awareness of them. Patients with this condition often have a scotoma, or blind spot, in their visual field due to brain damage. While they cannot consciously see stimuli presented in the scotoma, they are able to localize them with greater accuracy than chance guessing. This suggests that some visual processing is occurring unconsciously in the brain.

A Patient Who Demonstrates the Phenomenon of Blindsight