Periaqueductal Gray (PAG) Contains Large Numbers of _________ Receptors

question 138

Multiple Choice

 Periaqueductal gray (PAG) contains large numbers of _________ receptors.

• A) glutamate
• B) substance P
• C) endorphin
• D) serotonin

---

Definitions:

Counterconditioning

A behavior therapy technique that involves teaching the client to replace a negative response to a stimulus with a positive response.

Behavioral Contrast

The phenomenon where the rate of response varies according to a change in reinforcement conditions for one of two or more behaviors.

Sensory Preconditioning

A learning process where two neutral stimuli are paired together before one of them is paired with an unconditioned stimulus, affecting response to the second stimulus.

Conditioned Stimulus

A previously neutral stimulus that, after being associated with an unconditioned stimulus, triggers a conditioned response.