In an experiment with rats, a researcher first pairs a light with a shock for 20 trials, and then pairs a light-and-tone compound with the same shock. When the rats are tested with trials of the tone only, the light only, and the light-tone compound only, the researcher finds that the subjects show fear responses with
A) the light only, the tone only, and the light-tone compound.
B) the light only, but not the tone only or the light-tone compound.
C) the light only and the light-tone compound, but not the tone only.
D) the light-tone compound, but not the tone only or the light only.

Question

Quizplus · Accepted Answer

This is an example of overshadowing, where the more salient cue (light) in the compound (light-tone) acquires stronger association with the shock than the less salient cue (tone), leading to a fear response to the light and the light-tone compound, but not to the tone alone.

In an Experiment with Rats, a Researcher First Pairs a Light