CLEP Psychology

Question 1

Which neurotransmitter is primarily targeted by SSRIs (Selective Serotonin Reuptake Inhibitors) to regulate mood?

Accepted Answer

Serotonin

Answer

SSRIs block the reuptake of serotonin, increasing its availability in the synapse — the mechanism directly names the neurotransmitter targeted.

Question 2

The gate-control theory of pain proposes that pain signals can be inhibited by:

Accepted Answer

Activation of large-diameter nerve fibers

Answer

Large-diameter fiber activity closes the 'gate' in the spinal cord, blocking transmission of pain signals to the brain — which is why rubbing an injury reduces pain.

Question 3

REM sleep is best characterized by:

Accepted Answer

Vivid dreaming and temporary muscle atonia

Answer

REM sleep features vivid dreaming and muscle atonia (paralysis) that prevents the sleeper from acting out dreams.

Question 4

Neuroplasticity refers to:

Accepted Answer

The brain's ability to reorganize and form new neural connections throughout life

Answer

Neuroplasticity is the brain's lifelong capacity to change structurally and functionally in response to experience, learning, or injury.

Question 5

Which division of the autonomic nervous system is responsible for the 'fight-or-flight' response?

Accepted Answer

Sympathetic nervous system

Answer

The sympathetic nervous system activates fight-or-flight, increasing heart rate, dilating pupils, and redirecting blood to muscles during perceived threats.

CLEP Practice Test

CLEP Practice Test

CLEP Psychology