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Definition
| the minimum stimulation needed for a given person to detect a given stimulus ( oder, taste, sound, etc.) 50% of the time |
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Term
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Definition
| defined as dimished sensitivity as a consequence of constant stimulation |
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Term
| Just Noticeable Difference (jnd) |
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Definition
| the smallest difference a person can detect between 2 similar stimuli |
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Term
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Definition
| a principle that, to perceive their difference, 2 stimuli must differ by a constant minimum % rather than a constant amount |
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Term
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Definition
| the brain's processing of organizing and making sense of sensory information |
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Term
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Definition
| the processing of informatin at various levels of awareness |
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Term
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Definition
| the internal biological clock in which regular bodily rhythms occur in a 24 hour cycle |
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Definition
| a sleep disorder characterized by uncontrollable sleep attacks |
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Term
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Definition
| the storyline of our dream; often incorporates experiences and preoccupations from the day's events |
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Term
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Definition
| the underlying meaning of a dream; usually a forbidden sexual or aggressive wish |
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Definition
| chemicals that change perceptions and moods |
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Term
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Definition
| slow down body functions and neurological activity; "downers" |
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Term
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Definition
| increase neural activity and body functions; " uppers" |
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Term
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Definition
| distort perceptions and produce sensations that have no physical harm |
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Term
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Definition
| the practice of some form of relaxed concentration that can block distracting sensory stimuli |
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Term
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Definition
| an induced state of consciousness characterized by deep relaxation and heightened suggestibility |
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