AP PSYCHOLOGY

BIOLOGICAL BASES OF BEHAVIOR

BIOLOGICAL PSYCHOLOGY

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Split brain patients have had their [ ____ ] surgically cut?
A
hippocampus
B
reticular formation
C
sensory cortex
D
corpus callosum
Explanation: 

Detailed explanation-1: -Corpus callosotomy is surgery to treat epilepsy seizures when antiseizure medications don’t help. The procedure involves cutting a band of fibers (the corpus callosum) in the brain. Afterward, the nerves can’t send seizure signals between the brain’s two halves.

Detailed explanation-2: -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.

Detailed explanation-3: -In ‘split-brain’ patients, the corpus callosum has been surgically cut to alleviate intractable, severe epilepsy. One of the Nobel Prize-winning discoveries in neuroscience is that severing the corpus callosum leads to a curious phenomenon (Fig.

Detailed explanation-4: -Sperry severed the corpus callosum in cats and monkeys to study the function of each side of the brain. He found that if hemispheres were not connected, they functioned independently of one another, which he called a split-brain. The split-brain enabled animals to memorize double the information.

There is 1 question to complete.