Sleep and Dreaming Psych exam 2

altered state of consciousness

state in which there is a shift in the quality or pattern of mental activity ex: dreaming/hypnotic state

circadian rhythm

the biological clock; regular bodily rhythms that occur on a 24-hour cycle

consciousness

a person's subjective experience of the world and the mind
ex: driving when a basketball rolls into the street you then think to stop cuz a child is probably close by

dreams

products of an altered state of consciousness in which images and fantasies are confused with reality

insomnia

recurring problems in falling or staying asleep

narcolepsy

Falling immediately into rem sleep during the day without warning

nightmares

bad dreams occurring during REM sleep

Non-REM Sleep

any of the stages of sleep that do not include REM 1. hypnic jerk 2. temp breathing heart rate decrease 3. growth hormones released hard to wake up

REM behavior disorder

sleep paralysis that normally occurs during rem sleep is absent ex: start acting out your dreams (man from video example)

REM sleep

a stage of sleep- rapid eye movements and a high level of brain activity

sleep apnea

a disorder in which the person stops breathing for brief periods while asleep

sleep need

nightly amount of sleep necessary to maintain optimal waking function

sleep stages

1, 2, 3, 4, REM

sleep terrors

frightening dreamlike experiences that occur during the deepest stage of non-REM sleep, shortly after the child has gone to sleep

sleepwalking

walking or carrying out behaviors while asleep

theories of sleep

adaptive theory and restorative theory

adaptive theory of sleep

theory that organisms sleep for the purposes of self-preservation, to keep away from predators that are more active at night

restorative theory of sleep

the theory that the function of sleep is to restore body and mind

sleep stages

relaxed stage (alpha waves)
stage 1 (early sleep) (hallucinations)
stage 2 (sleep spindles - bursts of activity) (sleep talk)
stage 3 (transition phase) (delta waves)
stage 4 (delta waves) (sleepwalk/talk + wet the bed)
stage 5 (REM) (sensory-rich dreams) (paradoxical sleep)

Obstructive sleep apnea

individual's airway blocked during sleep, air is prevented from entering the lungs.

central sleep apnea

,disruption in signals sent from the brain that regulate breathing cause periods of interrupted breathing