Whenever Erin first sees her boyfriend, her heart beats fast. And whenever her boyfriend comes to her dorm room and the door is closed, he knocks five times before entering the room. After a while, Erin's heart jumps with excitement whenever she hears five knocks. The knocking is a(n) ________ for Erin. a. unconditioned stimulus b. unconditioned response c. conditioned stimulus d. conditioned response

Short Answer

Expert verified
The correct answer is c. conditioned stimulus.

Step by step solution

01

Understand the key concepts

First, let's briefly review the definitions of the four terms provided in the options. a. Unconditioned stimulus: A stimulus that naturally and automatically triggers a response without any learning or conditioning. b. Unconditioned response: A natural and automatic response to an unconditioned stimulus without needing to be learned. c. Conditioned stimulus: A previously neutral stimulus that, after being associated with an unconditioned stimulus, comes to trigger a conditioned response. d. Conditioned response: A learned response to a previously neutral stimulus (the conditioned stimulus) after being paired with an unconditioned stimulus.
02

Identify the unconditioned stimulus and response

In this situation, Erin's boyfriend is the unconditioned stimulus because his presence naturally and automatically triggers a response in Erin without any learning or conditioning. The unconditioned response is Erin's heart beating fast upon seeing her boyfriend.
03

Identify the conditioned stimulus and response

The conditioned stimulus in this situation is the five knocks. Initially, the knocks were a neutral stimulus, but after being associated with Erin's boyfriend's presence, they come to trigger a conditioned response in Erin. The conditioned response is Erin's heart jumping with excitement upon hearing the five knocks, which is a learned response after associating the knocks with her boyfriend's presence.
04

Choose the best answer to describe the knocking

Considering the given information and the definitions of the terms, the knocking is a "conditioned stimulus" for Erin because it's a neutral stimulus that has become associated with her boyfriend's presence and now triggers a conditioned response (her heart jumping with excitement). The correct answer is c. conditioned stimulus.

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