Questions that will be on tests

Question 1

The strength of a stimulus is coded by:

Answer 1

Both A and C:

The frequency of action potentials
the size of action potentials

Question 2

In lateral inhibition

Answer 2

All of the above:

The nervous system produces contrast to emphasize more-important information over less-important information

Afferent neurons with neighboring receptive fields inhibit each other’s communication to second-order neurons

The ability to locate the site of a stimulus is enhanced

Question 3

Which of these statements correctly describes receptors?

Answer 3

They respond to various physical or chemical changes in their environment.