Which of the Following Statements Regarding the Determination of Stimulus

Question

Which of the following statements regarding the determination of stimulus intensity is true?
A)Stronger intensity stimuli cause rapid adaptation,while weaker stimuli cause slower adaptation.
B)The amplitude of action potentials increases with increasing stimulus intensity.
C)The duration of receptor potentials decreases with increasing stimulus intensity.
D)The frequency of action potentials increases with increasing stimulus intensity.
E)The only means of detecting intensity changes is through recruitment of greater numbers of sensory units.

Accepted Answer

Increasing the stimulus intensity increases the frequency of action potentials generated by sensory receptors. This is known as the frequency or rate law. As the stimulus becomes stronger, it induces more frequent firing of action potentials from sensory receptors.