By electrically stimulating part of the brain of a laboratory rat a scientist has caused the rat to lose all interest in food.Which part of the brain has the scientist lesioned?
A)the hypothalamus
B)the lateral geniculate nucleus
C)the substantia nigra
D)the amygdala

Question

Quizplus · Accepted Answer

The hypothalamus is responsible for regulating hunger and satiety. By electrically stimulating this region of the brain, the scientist has disrupted the mechanisms that control appetite and caused the rat to lose all interest in food. The other brain regions listed (lateral geniculate nucleus, substantia nigra, and amygdala) do not have direct involvement in appetite regulation.

By Electrically Stimulating Part of the Brain of a Laboratory