A(n) _____ can signal either the presentation of a US or its absence, or even a change in the intensity of the US.
A) releaser
B) operant
C) external inhibitor
D) occasion setter

Question

Quizplus · Accepted Answer

An occasion setter is a stimulus that signals the relation between other stimuli, such as signaling when a US (unconditioned stimulus) will be presented, its absence, or a change in its intensity. This makes it distinct from releasers, operants, and external inhibitors, which have different roles in behavior and learning.

A(n) _____ Can Signal Either the Presentation of a US