Question 1

Which brain structure is primarily responsible for regulating the circadian rhythm by synchronizing with external light cues?

Accepted Answer

Suprachiasmatic nucleus (SCN)

Question 2

A person wakes up unable to move and feels a menacing presence in the room. This experience is best described as:

Accepted Answer

Sleep paralysis

Question 3

Which stage of sleep is characterized by rapid eye movements, brain activity similar to wakefulness, and muscle atonia?

Accepted Answer

REM sleep

Question 4

According to Freud, the difference between the latent and manifest content of dreams is that:

Accepted Answer

Manifest content is the storyline, latent content is the hidden meaning

Question 5

Which of the following is a likely consequence of chronic shift work, according to research?

Accepted Answer

Substantial decline in memory and processing speed, reversible after several years

Question 6

Which sleep disorder involves a person walking while fully asleep, typically during stage 3 sleep, and is considered safe to wake the person?

Accepted Answer

Somnambulism

Question 7

Which of the following best describes the activation-synthesis theory of dreaming?

Accepted Answer

Dreams are random brain activity that the mind tries to make sense of

Question 8

A student who regularly drinks coffee late at night finds it difficult to fall asleep at their usual time. This is an example of:

Accepted Answer

Sleep displacement

Question 9

Which of the following drugs is classified as both a stimulant and a hallucinogen, and is known for increasing serotonin release and social bonding?

Accepted Answer

MDMA

Question 10

Which of the following is a key feature of paradoxical insomnia?

Accepted Answer

Belief of being sleep deprived despite normal sleep cycles

Question 11

Which hormone is primarily associated with the regulation of sleep and is secreted in response to darkness?

Accepted Answer

Melatonin

Question 12

A person experiences sudden muscle weakness and falls asleep directly into REM sleep. This is most characteristic of:

Accepted Answer

Narcolepsy with cataplexy

Question 13

Which of the following best explains why sleep deprivation can lead to emotional dysregulation?

Accepted Answer

Increased activation of the amygdala with reduced connection to the frontal cortex

Question 14

Which of the following is a common effect of prolonged cannabis (THC) use?

Accepted Answer

Impaired cognitive function that is reversible

Question 15

Which of the following is a primary risk associated with combining benzodiazepines and alcohol?

Accepted Answer

Potentially fatal respiratory depression

Question 16

Which of the following best describes the effect of stimulants like amphetamines on the brain?

Accepted Answer

Stimulate massive dopamine release and alter frontal lobe structure

Question 17

Which sleep disorder is most commonly associated with children and is characterized by sudden waking episodes with screaming and confusion?

Accepted Answer

Night terrors

Question 18

Which of the following is a key finding from balanced-placebo design studies on alcohol?

Accepted Answer

Expectations can influence social behavior as much as actual alcohol consumption

Question 19

Which of the following is a plausible explanation for why sleep is considered essential, according to the restorative hypothesis?

Accepted Answer

Sleep restores and replenishes the body, consolidates memory, and supports cognitive function

Question 20

Which of the following best describes the effect of alcohol at low doses?

Accepted Answer

Acts as a stimulant via dopamine release

Consciousness: Sleep, Dreams, and Psychoactive Drugs

Study Guide - Practice Questions