For Sensory Receptor Cells,the "Threshold of Detection" is the Weakest

Question

For sensory receptor cells,the "threshold of detection" is the weakest stimulus that produces
A)a response.
B)a response 50 percent of the time.
C)a response 100 percent of the time.
D)a maximum response magnitude.

Accepted Answer

The threshold of detection is defined as the minimum level of stimulation required for a sensory receptor to detect a stimulus. It is the point at which a stimulus is just strong enough for a person to detect it 50% of the time. Therefore, the correct answer is B, which states that the threshold produces a response 50 percent of the time.