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Psych 10 Chapters 7,8,9,10
Psych Terms
38
Psychology
Undergraduate 2
07/07/2011

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Term
Consciousness
Definition
Our awareness of ourselves and our environment
Term
Cognitive Neuroscience
Definition
the interdisciplinary study of the brain activity linked with cognition (incudes perception, thinking, memory, and language)
Term
Dual Processing
Definition
the principle that information is often simulataneously processed on separate conscious and unconscious tracks
Term
Selective Attention
Definition
the focusing of conscious awareness on a particular stimulus
Term
Inattentional Blindness
Definition
failing to see visible objects when our attention is directed elsewhere
Term
Change Blindness
Definition
failing to notice changes in the environment
Term
Circadian Rhythm
Definition
the biological clock; regular bodily rhythms (temperature and wakefulness) that occur on a 24-hour cycle
Term
The Biological Clock
Definition
Light striking the retina signals the superachiasmatic nucleus (SCN) to suppress the pineal gland's production of the sleep hormone melatonin. At night the SCN slow down allowing for the release of melatonin.
Term
REM Sleep
Definition
rapid eye movement sleep, a recurring sleep stage during which vivid dreams commonly occur. Also know as paradoxical sleep, because muscles are relaxed but other systems are active.
Term
Alpha Waves
Definition
the relatively slow brain waves of a relaxed, awake state
Term
Sleep
Definition
Periodic, narutal,reversible loss of consciousness-as distinct from unconscious resulting from coma
Term
Hallucination
Definition
False sensory experiences such as seeing something in the absence of an external visual stimulus.
Term
Delta Waves
Definition
large, slow brain waves associated with deep sleep
Term
Insomnia
Definition
recurring problems in falling or staying asleep
Term
narcolepsy
Definition
the sleep disorder characterized by uncontrollable sleep attacks. The sufferer may lapse directly into REM sleep at inopportune times
Term
Sleep apnea
Definition
sleep disorder characterized by temporary cessations of breathing during sleep and repeated awakenings.
Term
Night terrors
Definition
sleep disorder characterized by high arousal and an appearance of being terrified. Occurs within 2-3 hours of falling asleep and is not remembered.
Term
Manifest Content
Definition
acording to Freud, the remembered story line of a dream
Term
Latent content
Definition
according to Freud, the underlying meaning of a dream as distinct from a its manifest content.
Term
Why we dream
Definition
Satisfy our own wishes, file away memories, develop and preserve neural pathways, make sense of neural static, to refelct cognitive development.
Term
Hypnosis
Definition
social interaction in which one person sugest to another that certain perceptions, feelings, thoughts, or behaviors will spontatneously occur
Term
Posthypnotic suggestion
Definition
suggestion made during a hypnosis session to be carried out after the subject is no longer hypnotized
Term
dissociation
Definition
split in consciousness which allows some thoughts and behaviors to occur simulatenously with others
Term
psychoactive drug
Definition
a chemical substance that alters perceptions and moods
Term
Tolerance
Definition
diminishing effect from regular use of the same dose of a drug, requiring larger doses
Term
Withdrawl
Definition
the discomfort and distress that follow discontinuing the use of an addictive drug
Term
physical dependence
Definition
a physiological need for a drug, marked by unpleasant withdrawl symptoms when the drug is discontinued
Term
psychological dependence
Definition
psychological need to use a drug to relieve negative symptoms
Term
addiction
Definition
compulsive drug craving despite adverse consequences
Term
depressants
Definition
drugs like alcohol and opiates that reduce neaural activity and slows down bodily function
Term
barbiturates
Definition
drugs that depress the activity of the central nervous system, reducing anxiety but impairing memory and judgement
Term
opiates
Definition
opium and its derivatives such as morphine and heroin; they depress neural activity, and lessen pain and anxiety
Term
stimulants
Definition
drugs like caffeine and nicotine that excite neural activity and speed up bodily functions
Term
amphetamines
Definition
drugs that stimulate neural activity causing speed-up body functions, energy and mood changes
Term
methamphetamine
Definition
addictive drug that stimulates the CNS with sped-up body functions and reduce dopamine levels
Term
Ecstasy
Definition
MDMA a sympathetic stimulant and mild hallucinagen. Produces euphoria and social intimacy but harmful to serotonin procuding neurons and damages mood and cognition.
Term
Hallucinogens
Definition
drugs that distort perceptions and evoke sensory images in absence of sensory input
Term
THC
Definition
major ingredient in marijuna that triggers a variety of effects include mild hallucinations.
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