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, according to research on circadian rhythm disruption?

Accepted Answer

Substantial decline in brain function

Question 8

According to the activation-synthesis theory, what is the main purpose of dreams?

Accepted Answer

To make sense of random brain activity during sleep

Question 9

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

Accepted Answer

Stage 3 and 4 NREM

Question 10

A person reports feeling conscious but unable to move upon waking, accompanied by chest pressure hallucinations. What is the most likely explanation?

Accepted Answer

Sleep paralysis

Question 11

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

Accepted Answer

Decreases inhibition and acts as a social lubricant

Question 12

What is the main danger associated with opioid overdose?

Accepted Answer

Suppressed respiration leading to death

Question 13

Which of the following is TRUE about sleep hygiene practices?

Accepted Answer

Avoiding caffeine after lunch can help improve sleep

Question 14

Which sleep disorder involves a blockage of the airway during sleep, often leading to repeated awakenings?

Accepted Answer

Sleep apnea

Question 15

Which psychoactive drug is known for producing a mix of excitatory, depressive, and mildly hallucinatory effects, and can impair memory due to its action on cannabinoid receptors in the hippocampus?

Accepted Answer

Marijuana (THC)

Question 16

A person with ADHD is prescribed Adderall. What is the primary mechanism by which Adderall helps manage ADHD symptoms?

Accepted Answer

Increases dopamine, serotonin, and norepinephrine levels

Question 17

Which of the following is a plausible effect of sleep deprivation, as observed in extreme cases like Peter Tripp's 'wakeathon'?

Accepted Answer

Visual hallucinations and paranoia

Question 18

Which of the following best explains the concept of 'balanced-placebo design' in alcohol research?

Accepted Answer

It separates the effects of expectation from the physiological effects of alcohol

Question 19

Which sleep stage is most likely to be suppressed by alcohol consumption?

Accepted Answer

Stage 3 and 4 NREM (deep sleep)

Question 20

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

Accepted Answer

Belief of being sleep deprived despite normal sleep patterns

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

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