Definition, Meaning & Synonyms

stimuli

noun

/ˈstɪm.jʊ.laɪ/

Definition

Stimuli are things that provoke a response or reaction from an organism or a system.

Examples

The loud noise acted as a stimulus, causing everyone to turn their heads.
Bright lights serve as stimuli that can affect sleep patterns.
In experiments, researchers present stimuli to participants to measure their reactions.

Meaning

In psychology and biology, stimuli are events or objects that can elicit a response from the sensory organs or provoke an emotional or behavioral reaction.