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Stimulus

• Overview

Definition:

A stimulus is anything that can trigger a physical or behavioral change. The plural of stimulus is stimuli. Examples of stimuli include irritants, sights, sounds, heat, cold, smells, or other sensations.

• Review Date: 1/22/2007
• Reviewed By: Benjamin W. Van Voorhees, MD, MPH, Assistant Professor of Medicine and Pediatrics, The University of Chicago, Chicago, IL. Review provided by VeriMed Healthcare Network.

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