Injecting an NMDA receptor blocker into the amygdala
A) has no effect on conditioned fear.
B) prevents only startle responses.
C) prevents only defensive behaviors.
D) disrupts acquisition of conditioned fear.

Question

Quizplus · Accepted Answer

Injecting an NMDA receptor blocker into the amygdala disrupts the acquisition of conditioned fear. NMDA receptors play a critical role in synaptic plasticity and learning, and the amygdala is an important brain region for fear conditioning. By blocking NMDA receptors in the amygdala, the ability to form and consolidate fear memories is impaired, leading to a disruption of the acquisition of conditioned fear.

Injecting an NMDA Receptor Blocker into the Amygdala