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Psychology 1

Psychology 1 - Term Definition Absolute threshold The...

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Term: Absolute threshold Definition: The weakest level of a stimulus that is necessary to produce a sensation. Term: Subliminal Stimulation Definition: Stimulation that is below a persons absolute threshold for conscious perception Term: Difference threshold Definition: The minimum difference in magnitude of two stimuli required to tell them apart Term: Just noticeable difference Definition: The minimum difference in stimuli that a person can detect. Jnd Term: Signal detection theory Definition: The relationship between physical stimulus and sensory response is not fully mechanical.
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Term: Sensory adaption Definition: The processes by which we become more sensitive to stimuli of low magnitude and less sensitive to stimuli that remain the same such as background noises outside the window Term: Sensitization Definition: The process of becoming more sensitive to stimulation also known as positive adaptation Term: Desensitization Definition: The process of becoming less sensitive to stimulation Term: Consciousness Definition: A concept with many meanings, including sensory awareness of the world outside, direct inner awareness of ones thoughts and feelings, personal unity, and the waking state.
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Term: Selective attention Definition: The focus of ones consciousness on a particular stimulus Term: Direct inner awareness Definition: Knowledge of ones own thoughts, feelings, and memories without the use of sensory organs. Term: Preconscious Definition: In psychodynamic theory, descriptive of material that is not in awareness but can be brought into awareness by focusing ones attention. Term: Unconscious Definition: In psychodynamic theory, descriptive of ideas and feelings that are not available to awareness; also without consciousness. Term: Repression Definition: In psychodynamic theory, the automatic (unconscious) ejection of anxiety evoking ideas, impulses, or images from awareness.
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Term: Suppression Definition: The deliberate or conscious placing of cretins ideas, impulses, or images out of awareness Term: Nonconscious Definition: Descriptive of bodily processes, such as growing hair, of which we cannot become conscious; we may "recognize" that our hair is growing, but we cannot directly experience the biological process. Term: Circadian rhythm Definition: A sleep/wake pattern connected with the 24 hour period of earths rotation. Term: Alpha waves Definition: Rapid low-amplitude brain waves that have been linked to feelings of relaxation
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Term: Non rapid eye movement Definition: (NREM) the first four stages of sleep Term: Rapid eye movement Definition: A stage of sleep characterized by rapid eye movements, which have been linked to dreaming Term: Theta waves Definition: Slow brain waves produced during the hypnagogic state Term: Delta waves Definition: Strong, slow brain waves usually emitted during stage 4 sleep Term: Activation-synthesis model Definition: The view that dreams reflect activation of cognitive activity by the reticular formation and synthesis of this activity into a pattern
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Term: Narcolepsy Definition:
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