57 Stimulus intensity is typically encoded in A action poten

57. Stimulus intensity is typically encoded in A) action potential amplitude B) frequency of action potentials C) number of receptors activated D) Both A and B are correct E) Both B and Care correct

Solution

The correct answer is option B.

Stimulus intensity coding:

CNS determining Strength: Once generated all action potentials are independent of stimulus strength. Strong stimuli generates nerve impulse more often in a given time interval than a weak stimuli.

Also, Stimulus intensity is coded for by the number of impulses per second(the frequency of Action potential) rather than the strength (amplitude) of individual Action potentials.