How can the nervous system represent increases in the intensity of a stimulus?
A) By increasing the number of neurons firing and the frequency of firing in each neuron.
B) Only by an increase in the number of neurons being fired.
C) Only by an increase in the frequency of firing in each neuron.
D) Only by an increase in the size of the action potential in each neuron that fires.

Question

Quizplus · Accepted Answer

As the intensity of a stimulus increases, the nervous system can represent it by increasing the number of neurons firing and the frequency of firing in each neuron. This results in a stronger overall signal being sent to the brain, which is processed as a more intense stimulus.

How Can the Nervous System Represent Increases in the Intensity