A persons awarness of everthing that is going on at any given moment. most waking hours are spent in waking consciousness
Are there different levels of consciousness?
Altered states of consciousness are shifts in the qualitly or pattern of mental activity
what is a circadian rhythm?
a cycle that takes about a day to complete
sleep is a product of what
activity in the hypothalamus, melatonin, serotonin and body temp.
what does adaptive theory state
sleep is a way to conserve energy and keep animals safe from predators that hunt at night
what does restorative theory state
sleep is an opportunity to restore chemicals that have been depleted throughout the day and for growth and repair of cells
what is the average number of hours of sleep an adult needs in a 24 hour period
what is stage one sleep
what is stage 2 sleep
indicated by sleep spindles or bursts of activity on the EEG
what is stage 3 sleep
first appearance of delta waves which are the slowest and largest waves
what is stage 4 sleep
mostly delta waves and the body is at the lowest level of functioning
when does REM sleep occur
it replaces stage 1 after a full 1-4 cycle has been completed. accompanied by paralysis of the voluntary muscles but rapid movement of the eyes
when do sleep walking and sleep talking occur
during stage 4
when do nightmares and REM behavior disorder occur
during REM sleep
what is narcolepsy
genetic disorder when a person suddenly falls into REM sleep
according to freud what is manifest content of a dream?
the actual dream and its events
according to freud what is the latent content of the dream?
the symbolic content
why do people have dreams?
without outside sensory information to explain the activation of the brain cells in the cortex by the pons area, the association areas of the cortex synthesize a story, or dream to explain the activation
what does the revision of the activation-synthesis theory ( the revision called AIM or activation-information-mode) state?
information experienced during waking hours can influence the synthesis of dreams
what is hypnosis?
a state of consciousness where a person is highly susceptible to suggestion
true or false...hypnosis can produce amnesia, reduce pain, and alter sensory impressions
who believed that a person under hypnosis is in a state of dissociation in which one part of the consciousness is susceptible to suggestion while the other part is aware of everything that is happening
what is the social-cognitive theory of hypnosis?
the hypnotized person is only playing a social role of a hypnotized person
what is physical dependance?
the users body will crave the drug and when deprived will go through physical withdrawl
what is psychological dependence?
The user believes he or she needs the drug to function well and maintain a sense of well being.
what are vivid realistic hallucinations that occur in stage one of sleep. often misinterpreted as ghosts or other supernatural visitors
very vivid realistic hallucinations that occur when waking up from REM sleep are?