These answers draw in part from “Stimulus-Stimulus Pairing” by Tabatha Adkins, PhD, BCBA-D (BehaviorLive), and extend it with peer-reviewed research from our library of 27,900+ ABA research articles. Clinical framing, BACB ethics code references, and cross-links below are synthesized by Behaviorist Book Club.
View the original presentation →Stimulus-stimulus pairing (SSP) is a procedure that repeatedly presents a neutral stimulus together with an already-established reinforcer so the neutral stimulus becomes a conditioned reinforcer. For example, a therapist pairs their voice or a specific word with preferred items and attention; over many pairings, the voice or word alone begins to function as a reinforcer.
SSP is respondent, or Pavlovian, conditioning used to create new reinforcers rather than to teach a specific response.
Stimulus-stimulus pairing procedures are used to establish new reinforcers, also called conditioned reinforcers. By pairing a neutral stimulus with an existing reinforcer, the neutral stimulus takes on reinforcing value.
This is commonly used to condition social stimuli such as praise, attention, or a caregiver's presence, and in efforts to increase automatic reinforcement for early vocalizations. The goal is to create reinforcement value, not to establish punishment or to directly increase tacts.
In early language work, a practitioner pairs specific sounds or words with strongly preferred items and attention while the child is calm and engaged. The aim is to condition the child's own vocalizations to become automatically reinforcing, so the child produces those sounds more often even when no one is delivering consequences.
Results are mixed across studies, so teams collect data and often combine SSP with direct reinforcement of vocal approximations.
Stimulus-stimulus pairing and stimulus pairing refer to the same core process of pairing a neutral stimulus with a reinforcer to create a conditioned reinforcer. Programming common stimuli is different: it is a generalization tactic in which the teacher builds features of the natural environment into training so a skill transfers to real-world settings.
One creates reinforcing value; the other promotes generalization.
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Take This Course →We extended these answers with research from our library — dig into the peer-reviewed studies behind the topic, in plain-English summaries written for BCBAs.
280 research articles with practitioner takeaways
279 research articles with practitioner takeaways
258 research articles with practitioner takeaways
All behavior-analytic intervention is individualized. The information on this page is for educational purposes and does not constitute clinical advice. Treatment decisions should be informed by the best available published research, individualized assessment, and obtained with the informed consent of the client or their legal guardian. Behavior analysts are responsible for practicing within the boundaries of their competence and adhering to the BACB Ethics Code for Behavior Analysts.