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bio psych: striatal structures
bio psychology: striatal structures
8
Psychology
Undergraduate 2
12/10/2012

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Term
nucleus accumbens
Definition
(ventral striatum) small structure also in the diencephalon that is highly involved in turning motivation into action. "reward center"
Term
nucleus accumbens actions
Definition
responds to new or important items in the environment and then motivated the animal to act accordingly (approach or avoid)
Term
blocking dopamine receptors
Definition
work more for electrical stimulation
Term
enhancing dopamine transmission
Definition
work less for electrical stimulation
Term
basal ganglia
Definition
the initiation, coordination and control of motor movements
Term
nigro-sytiatial dopamine system
Definition
originates in the substantia nigra and projects to the dorsal striatum.
important for the consolidation and recall of procedural memory. (learned motor patterns and habits.)
Term
dopamine hypothesis of addiction
Definition
the ability of drugs of abuse to elevate ans to sensitize this elevation in nucleus accumbens levels of dopamine is responsible in part for the increased attention to and or motivation to keep taking the drug (addiction)
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