Ch. 4

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EOG

electro-oculograph Recording movement of eye Tells when you're dreaming

euphoric high

feelings of intense elation and pleasure

obstructive sleep apnea

occurs when an individuals airway becomes blocked during sleep

external stimuli

seeing sunlight feeling warm hearing friend's voice

stage 1

stage of sleep where both respiration and heartbeat slow down Theta waves Hypnagogic hallucinations- don't happen every night

Sigmund freud

theorist described dreams as having manifest and latent content

theta wave

type of low frequency and low amplitude of brain wave

homeostasis

when you get hot you sweat to cool down when you are cold you get chill bumps and shiver to warm up

Stage zero

Alpha waves Relax, not asleep but close Normal muscle tone

Consciousness

Awareness of ourselves and our environment demonstrated by recall

Ultraradian rhythm

Basic test activity cycle 90min cycle all day long Found in pons

EKG

Electrocardiograph Make sure you're still breathing

EEG

Electroencephalograph Recording electrical det. of brain

EMG

Electromyograph Recording of muscles

Levels of sleep

Energy conversation Safety and survival at night Body restoration Brain restoration

Unconscious

Events outside our awareness

Conscious

Events/mental processes that you are aware of

Amplitude

Height

Polysomonograph

How you can study sleep

Preconscious

Just outside mental awareness that we can retrieve Ex: random trivia

Subconscious

Mental process that alter our emotions/ thoughts/ actions but is difficult to bring into awareness Ex: divorce at a young age

Suprachiasmatic

Nucleus of the hypothalamus SCN

narcolepsy

Samek was driving to work when he suddenly felt paralyzed and couldn't resist falling asleep. Samek probably has ____________

Frequency

Speed

Sleep

State of altered consciousness

psychological dependence

Tariq depends on cigarettes to relieve his stress but has no physical symptoms since he smokes infrequently.

Nonconsciousness

Things removed from your awareness by your brain Ex: maintaining blood pressure

Zetigebers

Time giver

Free running rhythm

Without zeitgebers Over 24.5 hours


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