Appetitive to aversive counter-conditioning as intervention to reduce reinstatement of reward-seeking behavior: The role of the serotonin transporter

Peter Karel, Amanda Almacellas-Barbanoj, Jeffrey Prijn, Anne-Marije Kaag, Liesbeth Reneman, Michel M. M. Verheij, Judith R. Homberg

Research output: Contribution to journalArticleAcademicpeer-review

Abstract

Counter-conditioning can be a valid strategy to reduce reinstatement of reward-seeking behavior. However, this has not been tested in laboratory animals with extended cocaine-taking backgrounds nor is it well understood, which individual differences may contribute to its effects. Here, we set out to investigate the influence of serotonin transporter (5-HTT) genotype on the effectiveness of counter-conditioning after extended access to cocaine self-administration. To this end, 5-HTT+/+ and 5-HTT-/- rats underwent a touch screen-based approach to test if reward-induced reinstatement of responding to a previously counter-conditioned cue is reduced, compared with a non-counter-conditioned cue, in a within-subject manner. We observed an overall extinction deficit of cocaine-seeking behavior in 5-HTT-/- rats and a resistance to punishment during the counter-conditioning session. Furthermore, we observed a significant decrease in reinstatement to cocaine and sucrose associated cues after counter-conditioning but only in 5-HTT+/+ rats. In short, we conclude that the paradigm we used was able to produce effects of counter-conditioning of sucrose seeking behavior in line with what is described in literature, and we demonstrate that it can be effective even after long-term exposure to cocaine, in a genotype-dependent manner.
Original languageEnglish
JournalAddiction Biology
DOIs
Publication statusE-pub ahead of print - 2018
Externally publishedYes

Cite this

Karel, Peter ; Almacellas-Barbanoj, Amanda ; Prijn, Jeffrey ; Kaag, Anne-Marije ; Reneman, Liesbeth ; Verheij, Michel M. M. ; Homberg, Judith R. / Appetitive to aversive counter-conditioning as intervention to reduce reinstatement of reward-seeking behavior: The role of the serotonin transporter. In: Addiction Biology. 2018.
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Appetitive to aversive counter-conditioning as intervention to reduce reinstatement of reward-seeking behavior: The role of the serotonin transporter. / Karel, Peter; Almacellas-Barbanoj, Amanda; Prijn, Jeffrey; Kaag, Anne-Marije; Reneman, Liesbeth; Verheij, Michel M. M.; Homberg, Judith R.

In: Addiction Biology, 2018.

Research output: Contribution to journalArticleAcademicpeer-review

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