When Selma was five years old she, was terrified and became hysterical when her older brother dropped a spider down her shirt.Today, even the sight of a rubber spider is enough to make her agitated and uneasy.In this example of classical conditioning, having the spider dropped down her shirt by her older brother is:
A)an unconditioned response
B)a conditioned stimulus
C)an unconditioned stimulus
D)a conditioned response

Question

Quizplus · Accepted Answer

The unconditioned stimulus is the original, naturally occurring stimulus that leads to a certain response. In this case, the unconditioned stimulus is the spider being dropped down Selma's shirt as it naturally causes a fear response in her.

When Selma Was Five Years Old She, Was Terrified and Became