A patient who can recall the names of past presidents but cannot recall any specific memories from his or her own childhood would MOST probably be suffering from a disconnection syndrome involving the:
A) uncinate fasciculus.
B) corpus callosum.
C) arcuate fasciculus.
D) medial forebrain bundle.

Question

Quizplus · Accepted Answer

The uncinate fasciculus is a neural pathway that connects the frontal and temporal lobes of the brain. It is involved in memory and emotion processing. A disconnection syndrome involving the uncinate fasciculus may result in a patient being able to recall factual information (such as past presidents) but having difficulty accessing autobiographical memories. Therefore, option A is the best choice. The corpus callosum is responsible for communication between the two hemispheres of the brain, and a disconnection syndrome involving it would result in more general cognitive deficits. The arcuate fasciculus is involved in language processing, and the medial forebrain bundle is involved in reward and motivation.

A Patient Who Can Recall the Names of Past Presidents