Damage to the rat's ________ would be expected to disrupt circadian rhythms related to
A) vlPOA
B) nucleus accumbens
C) thalamus
D) SCN
E) hippocampus

Question

Quizplus · Accepted Answer

SCN (suprachiasmatic nucleus) is known as the "master clock" in the brain that controls circadian rhythms. Damage to the SCN would disrupt the ability to synchronize with the external light-dark cycle and lead to disruptions in sleep-wake cycles, hormone release, and other physiological processes that follow a daily rhythm. The other brain regions listed are not as directly involved in circadian rhythms.

Damage to the Rat's ________ Would Be Expected to Disrupt