Catherine is at a crowded baseball game when she loses track of her con, Nick. Despite the loud cheering and noise of the crowd, she can pinpoint his location when he class for her because she can distinguish the sound of his voice from all the other voices. This illustrates theory.

This illustrates SIGNAL DETECTION theory.

Explanation: Signal detection theory also known as detection theory is the ability to differentiate between information-bearing patterns and random patterns that distract from the information.

This theory is used by psychologists that try to understand the way people make decisions under difficult conditions.

Signal detection  

Explanation:

The options for this question are missing. The options are:

A. Signal detection

B. Absolute threshold

C. Just noticeable difference

D. Sensory adaptation

In psychology, the signal detection theory states that the detection of a stimulus depends on two things:

This means that we are able to perceive things based on how "strong" they are to our senses but also based on how "important" they are to us or how much attention we pay to them.

In this example, Catherine is at a crowded baseball game and she loses track of her con, however, despite the noise she can locate him because she can distinguish his voice from all the others. This means that the stimulus of his voice is strong enough but also, Catherine is actually looking for him so she is "paying attention" to perceiving his voice and thus, this illustrates the signal detection theory.