Activity of _______ Appears to Be Responsible for Opening the Critical

Multiple Choice

Activity of _______ appears to be responsible for opening the critical period for plasticity, and activity of _______ appears to be responsible for closing the critical period.

A) cholinergic neurons; dopaminergic neurons
B) GABAergic neurons; cholinergic neurons
C) noradrenergic neurons; dopaminergic neurons
D) GABAergic neurons; GABAergic neurons
E) cholinergic neurons; cholinergic neurons