Psychology Chapter 3

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Psychology Chapter 3

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our awareness of ourselves and our environment
the principle that info is often simultaneously processed on separate conscious and unconscious tracks
dual processing
the focusing of conscious awareness on a particular stimulus
selective attention
failing to see visible objects when our attention is direcred elsewhere
inattentional blindness
failing to notice changes in the environment
change blindness
the biological clock
circadian rhythm
rapid eye movement sleep, a recurring sleep stage during which vivid dreams commonly occur
REM sleep
the relatively slow brain waves of a relaxed, awake state
aplha waves
periodic, natural loss of consciousness
false sensory experiences, such as seeing something in the absence of an external visual stimulus
the large, slow brain waves associated with deep sleep
delta waves
recurring problems in falling or staying asleep
a sleep disorder characterized by uncontrollable sleep attacks, The sufferer may lapse directly into REM sleep, often an inopportune times
a sleep disorder charcterized by temporary cessations of breaking during sleep and repeated momentary awakenings
sleep apnea
a sleep disorder characterized by high arousal and an apperance of being terrified
night terrors
a sequence of images, emotions, and thoughts passing through a sleeping persons mind
according to Freud, the remembered story line of a dream
manifest content
underlying meaning of a dream
latent content
the tendency for REM sleep to increase following REM sleep deprivation
REM rebound
a social interaction in which one person suggests to another that certain perceptions, feelings, thoughts, or behaviors will spontaneously occur
a suggestion, made during a hypnosis session, to be carried out after the subject is no longer hypnotized
posthypnotic suggestion
a split in consciousness, which allows some thoughts and behaviors to occur simultaneously with others
a chemical substance that alters perceptions and moods
psychoactive drug
the diminishing effect with regular use of the same dose of a drug, requiring the user to take larger and larger doses before experiencing the drug's effect
the discomfort and distress that follow discontiniuing the use of an addictive drug
a physiological need for a drug, marked by unpleasant withdrawal symptoms when the drug is discontinued
physical dependence
a psychological need to use a drug such as to relieve negative emotions
psychological dependence
compulsive drug craving and use, despite adverse consequences  
drugs that reduce neural activity and slow body functions
drugs tha depress the activity of the cns reducing anxiety but impairing memory and judgement
depress neural activity, temporarily lessening pain and anxiety
drugs that excited neural activity and speed up body functions
drugs that stimulate neural activity, causing speeded-up body functions and associated energy and mood changes
a powerfully addictive drug that stimulates the cns, with speeded yp body functions and associated energy and mood changes, over time, reduce baseline dopamine levels
a synthetic stimulant and mild hallucinogen. produces euphoria and social intimacy, short term health risks and long term harm to serotonin producing neurons and to mood and cognition
psychedelic drugs that distort perceptions and evoke sensory images in the absence of sensory inputs
a powerful hall. drug also known as acid
an altered state of consciousness reported after a close brush with death
near-death experience
the major active ingredient in marijuana