Psych 100: sleep and dreaming - exam flashcards #1

altered state of consciouness

Shift in quality or pattern and mental activity from usual waking activity

circadian rhythm

24 hour bodily rhythm

consciousness

Person’s awareness of everything that’s going on internal and external at any given time

dreams

a series of thoughts, images, and sensations occurring in a person's mind during sleep

insomnia

Inability to fall asleep, stay asleep, or get good quality sleep

narcolepsy

Person falls immediately into REM sleep during the day without warning

nightmares

Bad dreams of arousing feelings of horror, helplessness, extreme sorrow. Disruption of sleep triggered by a bad dream.

non rem sleep

Part of sleep where brain/breathing slow down, and eye movements stop

rem behavior disorder

Causes you to experience sleep paralysis and act out your dreams

rem sleep

When most dreaming occurs, heart rate increases, eye movement increases

sleep apnea

Person stops breathing for short periods during sleep

sleep need

Refers to the amount of sleep an individual requires to function.

sleep stages

1. Non-REM (NREM) Sleep:

   Stage 1: Light sleep, transition between wakefulness and sleep.

   Stage 2: Deeper sleep, characterized by sleep spindles and K-complexes.

   Stage 3: Deep sleep (slow-wave sleep), crucial for physical recovery.

2. REM Sleep:

   Rapid Eye Movement sleep, associated with vivid dreaming and brain activity similar to wakefulness.

sleep terrors

Attacks of extreme fear that the victim has while sound asleep

sleep walking

Occurs during non rem stage 3, people moving or walking around during sleep

Adaptive Theory

Animals and humans have evolved sleep patterns to avoid predators

Restorative Theory

Sleep that’s necessary for the physical health of the body, we feel good when we get a good night’s sleep