In Psychology, a stimulus (in the plural, stimuli ) is a Agent likely to cause a change of Comportement at the Sujet observed.

In the field of the experimental Psychologie and Biologie, a stimulus indicates all that is likely to determine an excitation at a living organism: a its (auditive stimulus), a visual stimulus (Image or Light), a source of Heat (thermal stimulus), the feeling of Revolved, a event, a electric Shock , a Odor, etc

In the field of the Training, faculty to learn, according to the theory Behaviorist, can be defined by successive approximations as well as a drive by using already conditioned stimuli .

See too

• Perception
• Feeling

Simple: Stimulus