• Ashley P Liggett, Regina Nastri, and Christopher A Podlesnik.
• Florida Institute of Technology and The Scott Center for Autism Treatment.
• J Exp Anal Behav. 2018 Mar 1; 109 (2): 408-421.

AbstractResurgence and reinstatement are laboratory models of relapse following treatments for problem behavior that arrange alternative sources of reinforcement, such as differential reinforcement of alternative behavior and noncontingent reinforcement. Resurgence models the elimination or reduction of reinforcers during treatment and reinstatement models the re-presentation of reinforcers previously maintaining problem behavior. The present study examined individual and combined effects of resurgence and reinstatement in a translational model of treatment relapse with three children diagnosed with Autism Spectrum Disorder. We first reinforced and then extinguished an arbitrary response while providing access to a preferred toy to model a version of noncontingent reinforcement with extinction. In the following phases, we examined resurgence by removing the toy, reinstatement by presenting the training reinforcer response-independently, and a combination of resurgence and reinstatement. Overall, relapse of target responding reliably exceeded functionally similar responses never reinforced in the experimental situation. Most importantly, relapse tended to be greater when combining resurgence and reinstatement than when assessing either alone. These findings support previous studies showing that combinations of operations can increase treatment relapse. This translational model arranging simulated problem behavior with arbitrary tasks provides a platform from which to thoroughly and systematically assess methods for understanding and improving behavioral treatments.© 2018 Society for the Experimental Analysis of Behavior.

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