The JND is defined as the:
A) amount of a stimulus needed to perceive depth using monocular cues
B) amount of a stimulus needed to perceive depth using binocular cues
C) smallest amount of stimulus you can detect 25% of the time
D) smallest change in intensity of the stimulus that you can detect 50% of the time

Question

Quizplus · Accepted Answer

The JND (Just Noticeable Difference) is defined as the smallest change in intensity of a stimulus that a person can detect 50% of the time. This is also known as the difference threshold. Option A and B are incorrect as they refer to cues for perceiving depth. Option C is incorrect as it refers to a different concept of absolute threshold (the smallest amount of stimulus needed to detect it).

The JND Is Defined as The