Extinction of a classically conditioned response involves suppression of that response by higher brain centers; the conditioned response can be established again very quickly.The probable mechanism for extinction lies in the path from the _____; the probable mechanism for reconditioning lies in the path from the _____.
A) thalamus to the amygdala; thalamus to the sensory cortex to the amygdala
B) thalamus to the sensory cortex to the amygdala; thalamus to the amygdala
C) hippocampus to the amygdala; thalamus to the frontal lobes to the amygdala
D) thalamus to the frontal lobes to the amygdala; hippocampus to the amygdala

Question

Quizplus · Accepted Answer

Extinction involves suppression of the conditioned response by higher brain centers, such as the prefrontal cortex, which inhibits the amygdala's response to the conditioned stimulus. The path from the thalamus to the sensory cortex and then to the amygdala is the probable mechanism for extinction. Reconditioning, on the other hand, involves establishing the conditioned response again, which is likely to occur through the path from the thalamus directly to the amygdala. The hippocampus is not directly involved in extinction or reconditioning of a classically conditioned response.

Extinction of a Classically Conditioned Response Involves Suppression of That