Psychology Unit 5 Quiz on Circadian Rhythms
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Questions and Answers

What is our inability to fall asleep early a reflection of?

the circadian rhythm

What does circadian rhythm refer to?

a pattern of biological functioning that occurs on a roughly 24-hour cycle

Raymond's difficulty in getting to sleep after four years of working nights is most likely due to a disruption of his what?

circadian rhythm

Paradoxical sleep is to slow-wave sleep as ________ sleep is to ________ sleep.

<p>REM; Stage 4</p> Signup and view all the answers

Why is REM sleep called paradoxical sleep?

<p>our nervous system is highly active, while our voluntary muscles hardly move</p> Signup and view all the answers

What can we expect to increase as John's sleep continues after 4 hours?

<p>REM sleep</p> Signup and view all the answers

What are the large, slow brain waves associated with deep sleep called?

<p>delta waves</p> Signup and view all the answers

How often does the human sleep cycle repeat itself?

<p>90 minutes</p> Signup and view all the answers

What has sleep deprivation been shown to do?

<p>Diminish immunity to disease</p> Signup and view all the answers

What was Carlos most likely experiencing after about an hour and a half of sleep?

<p>REM sleep</p> Signup and view all the answers

What disorder involves the cessation of breathing during sleep?

<p>sleep apnea</p> Signup and view all the answers

What does research indicate about alcohol?

<p>Disrupts the processing of recent experiences into long-term memories</p> Signup and view all the answers

What does REM rebound involve?

<p>Tendency for REM sleep to increase following REM sleep deprivation</p> Signup and view all the answers

What is alcohol considered?

<p>depressant</p> Signup and view all the answers

According to Freud, Inge's dream of dancing represents the ________ content of her dream.

<p>manifest</p> Signup and view all the answers

What are the rhythmic bursts of brain activity during Stage 2 sleep called?

<p>sleep spindles</p> Signup and view all the answers

Nightmares are to ________ as night terrors are to ________.

<p>REM sleep; stage 4 sleep</p> Signup and view all the answers

What is obesity a risk factor for?

<p>sleep apnea</p> Signup and view all the answers

Freud called the remembered storyline of a dream its ________ content.

<p>manifest</p> Signup and view all the answers

What indicates the need to take larger doses of a drug to experience its effects?

<p>tolerance</p> Signup and view all the answers

Study Notes

Sleep and Biological Rhythms

  • Circadian rhythm denotes a biological functioning pattern occurring roughly on a 24-hour cycle, crucial for regulating sleep and wake times.
  • A disruption in the circadian rhythm can lead to difficulties adjusting sleep patterns, as experienced by individuals transitioning from night shifts to day jobs.

Sleep Stages and Characteristics

  • REM (Rapid Eye Movement) sleep, also known as paradoxical sleep, is characterized by high neural activity and minimal muscle movement.
  • Non-REM sleep consists of various stages, with delta waves representing the deep sleep phase, also known as Stage 4.
  • The human sleep cycle generally repeats approximately every 90 minutes, encompassing multiple stages including REM.

Effects of Sleep Deprivation

  • Sleep deprivation negatively impacts immunity and increases susceptibility to diseases.
  • It may lead to heightened attentiveness to certain stimulating tasks, yet decreases overall tolerance and contributes to withdrawal symptoms.

Sleep Disorders

  • Sleep apnea is marked by intermittent cessation of breathing during sleep, which can be exacerbated by obesity.
  • Nightmares are linked to REM sleep, while night terrors occur during deep, stage 4 sleep.

Alcohol and Sleep

  • Alcohol is classified as a depressant and significantly disrupts memory processing and sleep quality by impairing long-term memory function.
  • Research shows that alcohol disrupts REM sleep, which is critical for cognitive functioning and emotional regulation.

Dream Analysis

  • Sigmund Freud described manifest content as the remembered storyline of a dream, distinct from latent content which symbolizes deeper meanings.
  • REM rebound refers to the tendency for REM sleep duration to increase following periods of REM deprivation, highlighting the body's compensatory mechanisms for lost sleep.

Physiological Changes During Sleep

  • REM sleep includes rapid eye movements, an increase in heart rate, and irregular breathing patterns.
  • Sleep spindles, bursts of brain activity, are characteristic of Stage 2 sleep, denoting a transition into deeper sleep states.

Key Terms

  • Tolerance: the need for increased drug doses to achieve similar effects, often developing from prolonged use.
  • The concept of sleep cycles illustrates the complex interplay of various sleep stages essential for physical and mental health.

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Description

Test your knowledge on circadian rhythms and their effects on sleep patterns in this quiz based on Psychology Unit 5. Explore how biological functioning follows a 24-hour cycle and the impact of disrupted sleep schedules.

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