Question 1

Which brain structure is primarily responsible for regulating circadian rhythms by synchronizing with light information from the retina?

Accepted Answer

Suprachiasmatic nucleus (SCN)

Question 2

A person wakes up unable to move and feels a menacing presence in the room. Which sleep phenomenon are they most likely experiencing?

Accepted Answer

Sleep paralysis

Question 3

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

Accepted Answer

Stage 5 (REM sleep)

Question 4

According to Freud, the difference between latent and manifest content in dreams is best described as:

Accepted Answer

Latent content is the hidden meaning; manifest content is the storyline

Question 5

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

Accepted Answer

Aging of the brain by more than 6 years

Question 6

Which sleep disorder involves rapid and unexpected onset of sleep, often directly into REM, and is associated with a lack of orexin?

Accepted Answer

Narcolepsy

Question 7

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

Accepted Answer

Sleep displacement

Question 8

Which neurotransmitter is most directly affected by cocaine, resulting in feelings of euphoria and increased energy?

Accepted Answer

Dopamine

Question 9

Which of the following is TRUE about REM sleep?

Accepted Answer

The body is paralyzed but the brain is highly active

Question 10

Which theory suggests that dreams help us reconsider and reprocess information critical for daily survival?

Accepted Answer

Problem-solving theory

Question 11

A person believes they are sleep deprived despite having a normal sleep cycle and experiences distress and anxiety. This describes:

Accepted Answer

Paradoxical insomnia

Question 12

Which of the following drugs is classified as both a stimulant and a hallucinogen?

Accepted Answer

MDMA (Ecstasy)

Question 13

Which sleep disorder is characterized by sudden waking episodes with screaming and confusion, most common in children and usually harmless?

Accepted Answer

Night terrors

Question 14

Which of the following is a key feature of the balanced-placebo design in alcohol research?

Accepted Answer

It disentangles physiological effects from expectation effects

Question 15

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

Accepted Answer

Melatonin

Question 16

Which of the following statements about marijuana (THC) is CORRECT?

Accepted Answer

It impairs memory consolidation due to cannabinoid receptors in the hippocampus

Question 17

Which sleep stage is most associated with the production of growth hormone and is crucial for feeling rested?

Accepted Answer

Stage 3 and 4 (Deep sleep)

Question 18

Which of the following is a plausible effect of sleep deprivation on mental health?

Accepted Answer

Increased tendency to overreact emotionally

Question 19

Which of the following drugs is a CNS depressant that increases GABA and was popular in the 1970s as a recreational drug?

Accepted Answer

Quaaludes (Methaqualone)

Question 20

A person walks around while fully asleep and has vague consciousness of the world. Which sleep disorder does this describe?

Accepted Answer

Somnambulism

Consciousness: Sleep, Dreams, and Psychoactive Drugs

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