sentence: Stimulus can include feelings like heat, cold, and pain.
sentences_before: It is often used in physiology.
sentences_after: When a stimulus is applied to something that can feel it, it causes a reflex. For example, if an animal is burned by touching fire, it will react by quickly moving away from it. Because of this, stimulus can be thought of as something done to an object to make it react.
concept_name: stimulus
headings: Stimulus
categories: Psychology Physiology