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

During which stage of sleep are vivid dreams and rapid eye movements most likely to occur?

Accepted Answer

REM sleep

Question 3

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

Accepted Answer

Melatonin

Question 4

A student who regularly consumes caffeine late in the evening is most likely to experience which sleep-related issue?

Accepted Answer

Sleep displacement

Question 5

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

Accepted Answer

Night terrors

Question 6

What is the primary neurotransmitter affected by stimulants such as cocaine and amphetamines, leading to increased wakefulness and euphoria?

Accepted Answer

Dopamine

Question 7

Which of the following is a plausible consequence of chronic shift work on brain function?

Accepted Answer

Substantial decline in brain function, reversible after several years

Question 8

According to the activation-synthesis theory, dreams are best described as:

Accepted Answer

A way to make sense of random brain activity during sleep

Question 9

Which sleep stage is associated with delta waves and is crucial for feeling rested?

Accepted Answer

Stage 3 and 4 NREM

Question 10

A person who believes they are sleep deprived despite having a normal sleep pattern may be experiencing which disorder?

Accepted Answer

Paradoxical insomnia (sleep-state misperception)

Question 11

Which of the following is a depressant that acts by increasing GABA activity and was commonly abused in the 1970s before being banned?

Accepted Answer

Methaqualone (Quaaludes)

Question 12

Which psychoactive drug is associated with a mix of excitatory, depressive, and mildly hallucinatory effects, and can cause memory impairment due to its action on cannabinoid receptors in the hippocampus?

Accepted Answer

Marijuana (THC)

Question 13

Which of the following best describes the balanced-placebo design in alcohol research?

Accepted Answer

A design that separates physiological effects from expectation effects

Question 14

Which sleep disorder involves a blockage of the airway during sleep, leading to repeated awakenings and reduced oxygen levels?

Accepted Answer

Sleep apnea

Question 15

Which neurotransmitter is released in massive amounts by MDMA, leading to heightened physical sensations and increased social bonding?

Accepted Answer

Serotonin

Question 16

Which of the following is a recommended sleep hygiene practice for students?

Accepted Answer

Maintaining a regular sleep-wake schedule

Question 17

Which of the following is a plausible effect of sleep deprivation on emotional regulation?

Accepted Answer

Increased tendency to overreact and reduced emotional regulation

Question 18

Which of the following drugs acts on opioid receptors to reduce pain perception and can depress respiration, posing a risk of overdose?

Accepted Answer

Morphine

Question 19

Which stage of sleep is most difficult to awaken from and is associated with the highest production of growth hormone?

Accepted Answer

Stage 4 NREM

Question 20

Which of the following best explains the evolutionary problem-solving theory of dreaming?

Accepted Answer

Dreams help us process and reconsider information critical for daily survival

Consciousness: Sleep, Dreams, and Drugs – Psychology Study Notes

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