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The third term is reinforcement. Reinforcement refers to a process or operation in which a response produces a consequence and the probability of that response occurring again in similar conditions increases because of the consequence.
Term
Definition
Stimulus
A physical energy change capable of affecting an organism through one of its receptors: photoreceptors, phonoreceptors, chemoreceptors (gustatory and olfactory), mechanoreceptors (touch), thermoreceptors, and free nerve endings.
Discriminative Stimulus
A stimulus in the presence of which a given response has a history of being reinforced.
Reinforcement
A stimulus following a response that increases or strengthens the likelihood of that response occurring in the future, under similar conditions.
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