Of course, not all forms of stimulation result from someone’s behavior. The physical environment also changes and these changes result in the production of stimuli. Rain falling from the sky can result in visual stimulation, auditory stimulation when it strikes the ground or window, and tactile stimulation if it strikes your skin.
A stimulus with the following features:
It is the result of someone’s behavior
Formal or dynamic characteristics of the stimulus (e.g., mode or intensity)
Formal or dynamic characteristics of the response that produces it
The function of the stimulus (e.g., discriminative, reinforcing)