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Ap psych all

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word
Definition
Absolute refractory period   The period during which a neuron lies dormant after an action potential has been completed.  
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Absolute threshold   The minimum amount of stimulation needed for a person to detect the stimulus 50 percent of the time.  
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Accommodation   The process by which the shape of an eye’s lens adjusts to focus light from objects nearby or far away. Also: the modification of a schema as new information is incorporated.  
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Acetylcholine (ACH)   A neurotransmitter involved in muscle movement, attention, arousal, memory, and emotion.  
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Achievement motive   An impulse to master challenges and reach a high standard of excellence.  
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Achievement tests   An assessment that measures skills and knowledge that people have already learned.  
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Action potential   A short-lived change in electric charge inside a neuron  
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Activation-synthesis theory   A theory proposing that neurons in the brain activate randomly during REM sleep.  
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Active listening   A feature of client-centered th erapy that involves empathetic listening, by which the therapist echoes, restates, and clarifies what the client says.  
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Adaptation   An inherited characteristic that increases in a population because it provides a survival or reproductive advantage.  
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Adaptive behaviors   Behaviors that increase reproductive success.  
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Additive strategy   The process of listing the attributes of each element of a decision, weighing them according to importance, adding them up, and determining which one is more appealing based on the result.  
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Adoption studies   Studies in which researchers examine trait similarities between adopted children and their biological and adoptive parents to figure out whether that trait might be inherited.  
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Adrenal cortex   The outer part of the adrenal glands, which secretes corticosteroids  
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Agoraphobia   A disorder involving anxiety about situations from which escape would be difficult or embarrassing or places where there might be no help if a panic attack occurred.  
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Created by: betsyenmj
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