Alan always turns the aquarium light on before putting fish food into the tank.After a while he notices that the fish swim to the top to look for the food as soon as he turns on the light.In this example,the ________________ is the unconditioned stimulus.
A)presence of Alan
B)time of day
C)aquarium light
D)fish food

Question

Quizplus · Accepted Answer

The unconditioned stimulus is the natural stimulus that elicits an unconditioned response without prior learning. In this case, the natural stimulus is the fish food, which naturally causes the fish to swim to the top of the tank to look for it. The aquarium light is a conditioned stimulus, as it has become associated with the presence of food due to classical conditioning. Therefore, the best answer is D.

Alan Always Turns the Aquarium Light on Before Putting Fish