Psychology: Consciousness and Sleep Stages
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Questions and Answers

What is the main characteristic of narcolepsy?

  • Periods during sleep when breathing stops
  • Presence of sleepwalking during stage 3 & 4
  • Excessive daytime sleepiness and uncontrolled REM sleep (correct)
  • Difficulty falling asleep or staying asleep

Which sleep anomaly occurs most frequently among children?

  • Sleep talking (correct)
  • Nightmares
  • Sleep apnea
  • Sleepwalking

What psychological function of dreams is suggested by Freud?

  • Dreams are primarily used for processing emotional memories
  • Dreams serve as a simulation for learning new strategies
  • Dreams are a way to reorganize and consolidate memories
  • Dreams reflect wish fulfillment and often have sexual themes (correct)

What is a common factor that contributes to insomnia?

<p>Consuming caffeine (C)</p> Signup and view all the answers

During REM sleep, which neurotransmitters show decreased levels?

<p>Serotonin and norepinephrine (D)</p> Signup and view all the answers

What is the primary difference between REM dreams and Non-REM dreams?

<p>REM dreams involve vivid emotional content, while Non-REM dreams are more thought-like and repetitive. (C)</p> Signup and view all the answers

Which stage of sleep is where sleep spindles and K-complexes primarily occur?

<p>Stage 2 (C)</p> Signup and view all the answers

How long does REM sleep typically last during a full night of sleep?

<p>20-25% of the entire sleep cycle (D)</p> Signup and view all the answers

What concept describes the awareness of dreaming while actually asleep?

<p>Lucid dreaming (D)</p> Signup and view all the answers

Which of the following accurately describes Stage 1 of sleep?

<p>It lasts about 10 minutes and often involves sensations of falling. (D)</p> Signup and view all the answers

What is a potential consequence of REM Behavior Disorder?

<p>Acting out dreams due to lack of paralysis. (A)</p> Signup and view all the answers

How much sleep is generally recommended for most adults?

<p>7-10 hours (D)</p> Signup and view all the answers

Which term refers to the spontaneous state of awareness characterized by daydreaming?

<p>Spontaneous consciousness (C)</p> Signup and view all the answers

Flashcards

Consciousness

Awareness of ourselves and our environment, thoughts, feelings, mental processes, and external events.

Sleep Stages

Distinct phases of sleep with varying brainwave patterns, each performing specific functions like rest and repair.

REM Sleep

Rapid Eye Movement sleep stage, characterized by vivid dreaming and rapid eye movements.

Non-REM Sleep

Sleep stages excluding REM, including stages 1-4, often associated with restorative functions like muscle repair.

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REM Behavior Disorder

A sleep disorder where the brain does not fully paralyze the body during REM sleep, leading to acting out dreams.

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Lucid Dreaming

Awareness of being in a dream while dreaming.

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Sleep Spindles & K-Complexes

Bursts of electrical activity during stage 2 sleep.

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Deep Sleep

Stages 3 & 4 sleep, characterized by slow delta waves and being hard to wake up.

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Somnambulism

Sleepwalking, occurring during stages 3 & 4 sleep. The individual is unaware of their actions and can't remember them upon waking.

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Sleep Apnea

Sleep disorder characterized by periods when breathing stops during sleep, often causing the individual to awaken briefly to breathe.

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Insomnia

Difficulty falling asleep or staying asleep, resulting in poor quality sleep.

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Night Terrors

Frightening episodes occurring within 2-3 hours of falling asleep (during stages 3 & 4). The individual may scream, cry, or thrash around. They have no memory of the event the next day.

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Study Notes

Consciousness

  • Consciousness is awareness of everything at a given time, including thoughts, feelings, and experiences outside oneself.
  • It's also awareness of oneself and the environment.

Sleep Stages

  • Most adults need 7-10 hours of sleep.
  • Newborns require 16 hours.
  • Sleep stages are measured by brain waves, changing as a person gets sleepier.
  • Stage 1: Lasts about 10 minutes. Often unaware of falling asleep, may experience falling sensations (hypnic myoclonia) or sudden limb jerks.
  • Stage 2: Lasts about 30 minutes, marked by bursts of electrical activity (sleep spindles and K-complexes), slower heart rate, body temperature drop, and relaxed muscles. It accounts for 65% of sleep.
  • Stage 3 & 4: Last about 30 minutes; deep sleep, where it is difficult to wake an individual; it is important for muscle repair. Slow wave sleep. People are hard to wake up.
  • REM (Rapid Eye Movement): Characterized by quick eye movements and happens during sleep; vivid dreams occur in this stage. It lasts about 20 minutes, and accounts for 20-25% of sleep; during this stage, dreams are often emotionally charged.

Dream Functions

  • Freud: dreams are wish fulfillment; many dreams focus on sexual themes. Processing emotional memories, integrating new experiences, learning strategies, simulating threatening events, and consolidating memories are all functions of dreams.
  • During REM sleep, the neurotransmitter acetylcholine goes up, but serotonin and norepinephrine levels decrease. The pons send incomplete signals to the lateral geniculate and thalamus, which are then interpreted by the forebrain; the Amygdala is active during REM.

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Description

Explore the fascinating concepts of consciousness and the stages of sleep in this informative quiz. Learn about the characteristics of different sleep phases, including the significance of REM sleep and the importance of getting enough rest. Test your knowledge on how these elements impact awareness and overall health.

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