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Psych GRE
vocabulary terms
10
Psychology
Graduate
10/28/2010

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Term
Ablation
Definition
A surgically induced brain lesion.
Term
Absolute refractory period
Definition
The period that follows the onset of an action potential. During this period, a nerve impulse cannot be initiated.
Term
Absolute threshold
Definition
The minimum of stimulus energy needed to activate a sensory system.
Term
Accommodation
Definition
A principle of Piaget's theory of cognitive development. It occurs when cognitive structures are modified because new information or new experiences do not fit into existing cognitive structures.
Term
Acetylcholine
Definition
A neurotransmitter found in both central and peripheral nervous systems linked to Alzheimer's disease and used to transmit nerve impulses to the muscles
Term
Acrophobia
Definition
An irrational fear of heights
Term
ACT model (Adaptive Control of Thought)
Definition
A model that describes memory in terms of procedural and declarative memory.
Term
Actor-observer effect
Definition
The tendency of actors to see observer behavior as due to external factors (situational factors) and the tendency of observers to attribute actors' behaviors to internal characteristics (dispositional characteristics).
Term
Adrenaline
Definition
A hormone that increases energy available for "fight or flight" reactions (also known as epinephrine).
Term
Afterimage
Definition
A visual sensation that appears after prolonged or intense exposure to a stimulus.
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