encyclopedia of medical concepts
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Drive

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Definition: A state of internal activity of an organism that is a necessary condition before a given stimulus will elicit a class of responses; e.g., a certain level of hunger (drive) must be present before food will elicit an eating response.  human & animal; no qualif   
See Also Instinct; Motivation
Examples Hunger; Thirst 		Other names Drives

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Sources: NLM Medical Subject Headings, NIH UMLS, Drugs@FDA, FDA AERS original data copyright United States Government. No endorsement implied. Last modified 6/6/2012
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