An experimenter presents a flash of light and a bell simultaneously followed by food. Conditioning proceeds satisfactorily, but when the experimenter presents the light and bell separately, he finds that the bell is an effective CS, but the light is not. The experimenter has demonstrated _______
A) counterconditioning
B) latent inhibition
C) blocking
D) overshadowing

Question

Quizplus · Accepted Answer

Overshadowing occurs when, in a classical conditioning experiment involving two conditioned stimuli presented together, one stimulus is more readily associated with the unconditioned stimulus than the other. In this case, the bell overshadowed the light, becoming an effective conditioned stimulus (CS) while the light did not.

An Experimenter Presents a Flash of Light and a Bell