Psych - Unit 1: Sleep and Dreaming

sleep

an altered state of consciousness

circadian rhythm

the day-to-night pattern our bodies follow that varies by age

beta wave

when we are awake and focused, occurs during NREM 1

alpha wave

when we are awake but relaxed, occurs during NREM 1

theta wave

when we fall asleep, occurs during NREM 1

k complexes

large, slow waves that interupt sleep spindles

NREM 2

skeletal muscles relax during this stage of sleep

delta wave

where deepest stage of sleep occurs, during NREM 3

REM

last stage of sleep, associated with dreaming and nightmares

90-110 min

each sleep cycle is _____ long

REM rebound

when REM periods increase after deprivation or disruption

dreams

neural repair, memory consolidation, and protein synthesis occur during ___

insomnia

inability to fall asleep or maintain sleep

narcolepsy

inability to stay awake

sleep apnea

when a person stops breathing while sleeping

somnambulism

sleepwalking

REM sleep behavior disorder

when a person physically acts out dreams