ABA glossary
Automatic reinforcement
Also called sensory reinforcement
Definition
Reinforcement produced directly by the response itself, without another person delivering the consequence. It can be positive (the behavior produces a sensation) or negative (the behavior reduces discomfort, such as an itch).
In plain words
Some behavior persists because of how it feels, sounds, or looks to the person, not because of anything other people do. Rocking, humming, finger flicking, and scratching can all be automatically reinforced. "Automatic" does not mean reflexive or unlearned: the behavior is still operant and strengthened by its consequences. It only means no one else mediates the consequence, which is why such behavior often continues when the person is alone.
Example from a session
An RBT notices that Priya, 9, flicks her fingers in front of her eyes during free play, during work, and while playing by herself with no one interacting with her, and nobody responds to it. ABC data across the week show no consistent antecedent or social consequence. The RBT reports the pattern objectively ("occurred in all settings, including while alone") rather than writing "stimming for sensory input," which is an interpretation for the BCBA to test.
For BCBA candidates and supervisors
In a functional analysis, automatic reinforcement is suggested when responding persists in the alone or ignore condition or is high and undifferentiated across conditions; a series of alone sessions can help confirm it. Treatment options include enriching the environment with items found in a competing-stimulus assessment, noncontingent access to matched stimulation, differential reinforcement, and sometimes sensory extinction, which masks the sensory consequence. Because staff cannot simply withhold the reinforcer, extinction alone is rarely practical. "Sensory" describes the source; it does not explain which consequence is maintaining the behavior.
Often confused with socially mediated reinforcement
The difference is who delivers the consequence. In automatic reinforcement, the behavior produces it directly, as when scratching relieves an itch. In socially mediated reinforcement, another person delivers or removes it, as when a parent hands over a toy after crying or a teacher ends a task. The same topography, such as head hitting, can be automatically maintained for one person and attention-maintained for another.
Exam tip
Look for behavior that continues when the person is alone or when no one responds. If a stem says responding is similar across all conditions, including alone, think automatic reinforcement.
Can you spot automatic reinforcement in a scenario?
Practice BCBA B.6 with exam-style questions and instant feedback.