Question

The difference threshold is defined as the stimulus level at which a change in a sensory signal is detected _____ percent of the time.

a) 25%
b) 50%
c) 75%
d) 100%

Answer 1

The difference threshold is the minimum stimulus level at which a change in a sensory signal is detected 50% of the time. It is also known as the just noticeable difference (jnd).

Step-by-step explanation:

The difference threshold is defined as the stimulus level at which a change in a sensory signal is detected 50% of the time. It refers to the minimum amount of stimulus energy required to be detected 50% of the time. The difference threshold is also known as the just noticeable difference (jnd) and is a constant fraction of the original stimulus.