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Human Science

Consciousness and altered states of consciousness

Consciousness awareness of sensations,thoughts and feelings being experienced at a given moment.
Selective attention trying to concentrate listening to a person talking while ignoring the background noise.
Divided attention a person talking on the phone while doing the cooking and watching television
cocktail party phenomenon you tend to listen to a conversation that interests you in spite of other conversations going on around you
inattention blindness looking for a particular item and while doing so, failed to notice a friend who was also shopping a few feet away
Characteristics common to all altered states of consciousness decreased sense of self, distorted perception of time, decreased sense of inhibition or loss of self control, alteration in thinking
Sleep is needed by the body to function well. it is not a state of unconsciousness, it is a state of "alternate consciousness"
benefits of sleep increased secretion of growth hormone,strengthen our capacity to remember - learning,it serves to repair the wear and tear on our bodies
how many states of sleep are there 4
describe stage one of sleep transition between wakefulness and sleep,images can appear but not true dreaming,low voltage brain waves
describe stage two of sleep person is difficult to wake up,slower,more regular wave patterns, "sleep spindles" appear
describe stage three of sleep slow brain waves, with greater peaks and valleys in the wave pattern
describe stage four of sleep person is least responsive to outside
insomnia dissatisfaction with the amount or quality of one's sleep
narcolepsy a sleep disorder characterized by sleep attack irresistibly falling asleep at in appropriate times
sleep apnea a sleep disorder characterized by temporary cessations of breathing during sleep and repeated momentary awakenings. Brain fails to send breathe signal to the diaphragm and other breathing muscles -breathing stop
Night terrors a sleep disorder charachterized by high arousal and an appearance of being terrified
Hypnosis is a specific and unusual form of verbal control that apparently enables one person to control some of another persons behaviour, including thinking and perceiving
Dreams a sequence of images, emotions, and thoughts passing through a sleeping persons mind
functions of dreams dreaming as wish fullfillment, dreaming as story constuction,dreaming as learning
Homeostatic sleep process 8 hours of sleep to 16hours of wakefulness every 24 hours
Circadian rhythm process are biological processes that occur repeatedly on approximately 24 hour cycles (internal clock)
Melatonin the hormone secreted by the pineal gland which help promote sleep
Created by: carolyn3057