Question 1

Which of the following best describes the main function of REM sleep according to current research?

Accepted Answer

REM sleep is essential for memory consolidation and integration of new information.

Question 2

A student reports feeling tired during the day, difficulty concentrating, and increased irritability after staying up late for several nights. Which psychological concept best explains these symptoms?

Accepted Answer

Sleep deprivation

Question 3

Which of the following is a key characteristic of Stage 2 sleep?

Accepted Answer

Presence of sleep spindles and K-complexes

Question 4

A person who experiences sudden loss of muscle tone and falls asleep during the day may be suffering from which sleep disorder?

Accepted Answer

Narcolepsy

Question 5

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

Accepted Answer

Dreams are the brain's attempt to make sense of random neural activity during REM sleep.

Question 6

Which of the following drugs is classified as a depressant and is known to enhance the effects of GABA in the brain?

Accepted Answer

Alcohol

Question 7

A person who snores loudly and experiences repeated pauses in breathing during sleep is most likely suffering from which condition?

Accepted Answer

Sleep apnea

Question 8

Which of the following statements about circadian rhythms is TRUE?

Accepted Answer

Circadian rhythms regulate cycles of sleep and wakefulness, typically following a 24-hour cycle.

Question 9

Which of the following is a common effect of chronic sleep deprivation?

Accepted Answer

Impaired cognitive performance and increased risk of mental health issues

Question 10

Which of the following best explains why alcohol can be dangerous when combined with barbiturates?

Accepted Answer

Both substances enhance GABA activity, which can severely depress the central nervous system and breathing.

Question 11

Which of the following is a primary symptom of REM behavior disorder?

Accepted Answer

Acting out dreams due to lack of muscle atonia during REM sleep

Question 12

Which of the following best describes the effect of stimulants such as amphetamines on the nervous system?

Accepted Answer

They increase the activity of the nervous system, leading to heightened alertness and energy.

Question 13

Which of the following is a risk factor for developing substance use disorder with cannabis?

Accepted Answer

Early onset of use, family history of mental health issues, and high THC content

Question 14

Which of the following best describes the main difference between NREM and REM sleep?

Accepted Answer

REM sleep is characterized by rapid eye movements and muscle atonia, while NREM sleep is not.

Question 15

A person who has difficulty falling asleep, wakes up frequently during the night, and feels unrested for at least 3 nights a week for over a month is most likely experiencing:

Accepted Answer

Insomnia

Question 16

Which of the following is a common effect of psychoactive drugs that act as hallucinogens?

Accepted Answer

Altered perceptions and sensory experiences

Question 17

Which of the following best explains why shift work can negatively impact health?

Accepted Answer

Shift work disrupts circadian rhythms, leading to sleep deprivation and increased stress.

Question 18

Which of the following is a physiological effect of chronic alcohol use?

Accepted Answer

Suppression of REM sleep and increased risk of dependence

Question 19

Which of the following best describes the role of the suprachiasmatic nucleus (SCN) in sleep?

Accepted Answer

The SCN acts as the brain's master clock, regulating circadian rhythms in response to light.

Question 20

Which of the following is a potential consequence of sleep deprivation on mental health?

Accepted Answer

Increased feelings of stress and emotional instability

Consciousness, Sleep, Dreams, and Drugs: Study Notes

Study Guide - Practice Questions

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