Question 1

Which of the following best describes the 'restore and repair hypothesis' of sleep?

Accepted Answer

Sleep is essential for restoring energy levels and repairing wear and tear from daily activities.

Question 2

A college student travels from New York to London and experiences difficulty sleeping at night and staying awake during the day. Which sleep concept best explains this phenomenon?

Accepted Answer

Jet lag

Question 3

Which brain structure is primarily responsible for synchronizing circadian rhythms with environmental light cues?

Accepted Answer

Hypothalamus

Question 4

According to the activation-synthesis hypothesis, what is the source of dream content?

Accepted Answer

Random activation of brainstem neurons

Question 5

Which sleep stage is characterized by high-frequency, low-amplitude waves and is associated with wakefulness and alertness?

Accepted Answer

Beta waves

Question 6

A person reports vivid dreams involving magical abilities and encounters with wild animals. According to Freud's psychoanalytic approach, these dreams most likely represent:

Accepted Answer

Manifest content

Question 7

Which of the following is a direct effect of sleep deprivation?

Accepted Answer

Impaired immune function and emotional disturbances

Question 8

Which theory of dreaming suggests that dreams help solve problems encountered while awake?

Accepted Answer

Problem-solving theory

Question 9

If a person consumes caffeine before bedtime, what is the expected effect on their sleep cycle?

Accepted Answer

It will delay the internal clock by 40 minutes.

Question 10

Which of the following best describes 'consciousness' as defined in psychology?

Accepted Answer

A person's subjective awareness, including thoughts, perceptions, experiences, and self-awareness.

Question 11

A patient in a persistent vegetative state shows no awareness of surroundings but maintains basic physiological functions. Which term best describes this condition?

Accepted Answer

Persistent vegetative state

Question 12

Which of the following is a function of the pineal gland in regulating sleep?

Accepted Answer

It produces melatonin, which decreases wakefulness.

Question 13

Which sleep disorder is characterized by sudden, uncontrollable episodes of sleep during waking hours?

Accepted Answer

Narcolepsy

Question 14

A researcher wants to measure the electrical activity of the brain during different sleep stages. Which method should they use?

Accepted Answer

Electroencephalogram (EEG)

Question 15

Which of the following best explains why older adults may perform better on cognitive tests in the morning compared to the afternoon?

Accepted Answer

Circadian rhythms shift with age, making morning their optimal time for alertness.

Question 16

Which of the following is NOT a characteristic of REM sleep?

Accepted Answer

Decreased breathing and heart rate

Question 17

A person experiences sleep displacement due to noisy neighbors. Which of the following is a likely consequence?

Accepted Answer

Impaired risk assessment and working memory

Question 18

Which of the following best describes the difference between manifest and latent content in Freud's dream theory?

Accepted Answer

Manifest content is the actual story and images, while latent content is the hidden symbolic meaning.

Question 19

Which formula represents the frequency of circadian rhythms in humans?

Accepted Answer

$$f = \frac{1}{24\ 	ext{hours}}$$

Question 20

Which of the following is a direct effect of switching to daylight saving time on sleep?

Accepted Answer

An average loss of 40 minutes of sleep and increased work-related injuries and traffic accidents.

Consciousness: Biological Rhythms, Sleep, and Altered States

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