Quiz 11

Hypnosis

- a condition of focused attention and increased suggestibility that occurs in the context of a special hypnotist's subject relationship

Suprachiasmatic Nucleus

Brain structure that the circadian rhythm of sleep and wakefulness

What is an electroencephalograph

EEG measures and amplifies tiny electrical changes on the scalp that reflect patterns of brain activity

3 theories of dreaming

Freuds/the attendant problem, the activation-synthesis, and neurocognitive (that dreaming is the special kind of thinking) theories

Part if brain reepsoible for cardigan rhythms

Hypothalamus

minimally conscious state

People have brief period of purposeful actiond snd speech comprehension

Sleep cycles

Wake Stage 1- light sleep, eye movement Stage 2- pulse and breathing slow, brain waves begin to slow Stage 3- pulse, breathing, brain activity slow more neural activity synchronized, dominated first half of night Stage 4- pulse, breathing brain activity slowest, brain wave synchronized so low neuron activity, dominates first half of night REM- eye move a lot, dreaming complex Brain waves desynchronized. Postural muscles most relaxed. Duration gets longer toward morning.

Sleeptalking

a common experience that ranges from grunted word to a clear paragraph

Deja vu

a feeling that an event is uncannily familiar

Why is REM called paradoxical?

a paradox is an apparent contradiction and rem sleep is paradoxical because it is light in someway and deep in others

Cardiac rhythms

a rhythm of activity and inactivity lasting about a day

Comma

cause by traumatic brain damage, the brain shows steady but low level of activity and no response to stimuli

Night terrors

causes someone to awaken screaming and sweating with a raing heart rate sometimes flailing with the arms pounding the walls

Wat is a polysomnography

combine an EEG measure with a simultaneous measure of eye movements to produce it

Freuds/the attendant problem

dreams represent unconscious desires thoughts and wish fulfillment and motivations; people don't panic until flight attendant tells them not to

Sleep apnea

fail to breathe for a minute or more and then wake up gasping for breath

Melatonin

important hormone for both circadian rhythms and two or three hours before bed time

Vegetative state

marked by limited responsiveness such as increased heart rate in resp0nse to pain

Insomnia

not enough sleep for the person to feel rested the next day

Narcolepsy

ppl with it lose the brain cells that produce orexin nd therefore return to a pattern resembling infants, for sleeping

the activation-synthesis

regards dreaming as bottom-up process with sensations or random activation controlled by the same mechanisms as any other thought

Two theories of sleep

repair and restoration and energy conversion/evolutionary theories

neurocognitive theory

that dreaming is the special kind of thinking) dreaming is a top down process

Brain Death

the brain shows no activity and no response to any stimulus

consciousness

the sub- jective experience of perceiving oneself and one's sur- roundings.