Question

1 point
4. A split brain patient is presented with two
images: a key is presented on her left
side, and a ring is presented on her right
side. The patient is asked to report what
she sees. How will she respond?​

Answer 1

Answer:

Split-brain or callosal syndrome is a type of disconnection syndrome when the corpus callosum connecting the two hemispheres of the brain is severed to some degree. It is an association of symptoms produced by disruption of, or interference with, the connection between the hemispheres of the brain. The surgical operation to produce this condition (corpus callosotomy) involves transection of the corpus callosum, and is usually a last resort to treat refractory epilepsy. Initially, partial callosotomies are performed; if this operation does not succeed, a complete callosotomy is performed to mitigate the risk of accidental physical injury by reducing the severity and violence of epileptic seizures. Before using callosotomies, epilepsy is instead treated through pharmaceutical means after surgery, neuropsychological assessments are often performed.

Answer 2

Split-brain syndrome

Explanation:

• The brain is split into the left and right hemispheres and is connected by the corpus callosum.

• The split-brain syndrome occurs when the connection between the left and right hemispheres is removed.

• In this syndrome, the information obtained from the left side view of an image or object passes to the right hemisphere, the information obtained from the right side view of an image or object passes to the left hemisphere.

• Here, two images are shown to a split-brain patient. One is the key on the left side and the ring on the right side.

• When the patient visualizes the key on the left side, its information passes to the right hemisphere. When the patient is questioned about what she has seen, she will say nothing. The visual of the key is registered on the right hemisphere ( which is not language dominant ) so, she can't respond.
• At the same time, when the patient visualizes the ring on the right side, its information passes to the left hemisphere. When a patient is asked to respond, she will say it as the ring.