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37 terms

States of Consciousness

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conciousness
awareness of outside and inner mental processes, thoughts, feelings and perceptions
attention
a state of focused awareness
preconcious
level of consciousness outside of awareness, contains memories and feelings that can be brought into the conciousness
unconscious
subconcious, level of consciousness that incudes thoughts not avalible to conscious awareness
nonconscious
level of consciousness devoted to processes completely inaccessible to concious awareness
hypothalamus
controls biological block, regulates changes in blood pressure, body temp, pulse, blood sugar, hormones, activity, sleep and wakefulness over 24 hours
circadian rythms
daily patterns of changes
reticular formation
neural netweork in brainstem and midbrain essential to the regulation of sleep wakefulness, arousal and attention
Stage 1 sleep
gradual loss of reponsiveness to outside, drifting thoughts and images
Stage 1 sleep
theta waves
Stage 2 sleep
50% of sleep time
Stage 2 sleep
sleep spindles and K complexes
Stage 3 sleep
deep sleep stage
Stage 3 sleep
delta waves
Stage 4 sleep
deepest sleep stage, slowed heart rate and respitratioon, lowered temprature and blood flow to the brain, growth hormone secreted
REM sleep
sleep stage when eyes move, 5-6 times per night, 80% dreaming, constitutes of 20% of sleep time, skeletal muscles are paralyzed
NREM
sleep without REM
insomnia
inability to fall asleep or stay asleep
narcolepsy
sudden and uncontrollable lapse into sleep
sleep apnea
temporary cessations of breathing, wake the sleeper
night terrors
bloodcurdling screams and intense fear in children during stage 4 sleep
somnambulism
sleep walking, during stage 4 sleep
manifest content
freud, the remembered story line of a dream
latent content
freud, the meaning of a dream
activation-synthesis theory
during REM sleep, the brainstem stimulaes the forebrain with random neural activity which we interpret as a dream
cognitive information processing theory
dreams are the interplay of brain waves and psychological functioning of the interpretive parts of the mind
daydreaming
state with focus on inner, private realities which can generate creative ideas
hypnosis
state with deep relaxation and heightened suggestibility
meditation
set of techniques used to focus concentration away from toughts and feels in order to create calmness, tranquility and inner peace
psychoactive drug
a chemical that can pass through the blood/brain barrier to alter preconception, thinking, behavior and mood
depressants
reduce activity of CNS and induce sleep
narcotics
depress the CNS, relieve pain, induce feelings of euphoria
stimulants
activate motivational cneters, reduce activity in inhibitory centers of the CNS
hallucinogens
distort perceptions and evoke censory images in the abscense of sensory input
psychological dependance
intense desire to achive the drugged state
physiological dependence
addiction, blood chemisty changes from taking a drug, the body needs to take the drug again to prevent withdrawl
withdrawal
intense craving for drug and effects opposite to those that the drug usually induces