What is the best description of a stimulus? – Yellow Zone

Question: What is the best description of a stimulus?
- Keywords:
  stimulus
Asked by dynaset to Byron, David, Esther, Henry, Jacquie on 12 Jul 2017.
- Byron Bitanihirwe answered on 12 Jul 2017:
  
  In psychology, a stimulus is any object or event that elicits a sensory or behavioral response in an organism.
  
  In physiology, a stimulus (plural stimuli) is a detectable change in the internal or external environment.

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