In experiments with split-brain patients where they were shown an image of a spoon in the left visual field, they
A) were unable to select the object correctly with their left hands but were able to say what they had seen.
B) were unable to select the object correctly with their right hands but were able to say what they had seen.
C) selected the object correctly with their left hands but were unable to say what they had seen.
D) selected the object correctly with their right hands but were unable to say what they had seen.

Question

Quizplus · Accepted Answer

In split-brain patients, the corpus callosum, which connects the two hemispheres of the brain, is severed. This means that information presented to one hemisphere is not accessible to the other. The left visual field is processed by the right hemisphere, which controls the left hand. These patients could select the object correctly with their left hand (because the right hemisphere could process the visual information), but they were unable to verbally identify what they had seen because the speech centers are typically located in the left hemisphere, which did not receive the visual information.

In Experiments with Split-Brain Patients Where They Were Shown an Image