Stimulus
A stimulus is anything that can trigger a physical or behavioral change. The plural of stimulus is stimuli.
Stimuli can be external or internal.
An example of external stimuli is your body responding to a medicine.
An example of internal stimuli is your vital signs changing due to a change in the body.
Stimuli include:
- Irritants
- Sights
- Smells
- Sounds
- Temperature changes
References
Taber's Medical Dictionary Online website.
Version Info
Last reviewed on: 2/2/2023
Reviewed by: Linda J. Vorvick, MD, Clinical Professor, Department of Family Medicine, UW Medicine, School of Medicine, University of Washington, Seattle, WA. Also reviewed by David C. Dugdale, MD, Medical Director, Brenda Conaway, Editorial Director, and the A.D.A.M. Editorial team.
