Mark is participating in an experiment on pain. His hand is placed in an apparatus that delivers a mild shock on each trial. The shock is preceded by a flashing light. After several trials, Mark pulls his hand away when the light appears. The light is a(n) __________.
A) unconditioned response
B) conditioned response
C) unconditioned stimulus
D) conditioned stimulus

Question

Quizplus · Accepted Answer

The flashing light has become a conditioned stimulus because it now elicits the conditioned response of Mark pulling his hand away due to its repeated pairing with the unconditioned stimulus of the mild shock.

Mark Is Participating in an Experiment on Pain