A dog whistle can be heard by dogs but not by humans.This whistle takes advantage of a characteristic of sensory systems known as
A) the absolute threshold.
B) the difference threshold.
C) perceptual defense.
D) a just noticeable difference.

Question

Quizplus · Accepted Answer

The use of a dog whistle exploits the absolute threshold, which is the minimum level of stimuli necessary for a sensory system to detect a stimulus. In this case, dogs have a lower absolute threshold than humans for sound frequencies, allowing them to hear the high-frequency sound produced by the dog whistle even though it is inaudible to humans.

A Dog Whistle Can Be Heard by Dogs but Not