Addicted to compulsion: Assessing three core dimensions of addiction across obsessive-compulsive disorder and gambling disorder

Giacomo Grassi, Nikos Makris, Stefano Pallanti

Research output: Contribution to journalArticlepeer-review

18 Scopus citations

Abstract

Objective Several studies suggested that obsessive-compulsive disorder (OCD) patients display increased impulsivity, impaired decision-making, and reward system dysfunction. In a Research Domain Criteria (RDoC) perspective, these findings are prototypical for addiction and have led some authors to view OCD as a behavioral addiction. Thus, the aim of this study was to investigate similarities and differences on impulsivity, decision-making, and reward system, as core dimensions of addiction, across OCD and gambling disorder (GD) patients.Methods Forty-four OCD patients, 26 GD patients, and 40 healthy controls (HCs) were included in the study. Impulsivity was assessed through the Barratt Impulsiveness Scale, decision-making through the Iowa Gambling Task, and reward system through a self-report clinical instrument (the Shaps-Hamilton Anhedonia Scale) assessing hedonic tone and through an olfactory test assessing hedonic appraisal to odors.Results Both OCD and GD patients showed increased impulsivity when compared to HCs. More specifically, the OCD patients showed cognitive impulsivity, and the GD patients showed both increased cognitive and motor impulsivity. Furthermore, both OCD and GD patients showed impaired decision-making performances when compared to HCs. Finally, GD patients showed increased anhedonia and blunted hedonic response to pleasant odors unrelated to gambling or depression/anxiety symptoms, while OCD patients showed only increased anhedonia levels related to OC and depression/anxiety symptoms.Conclusion OCD patients showed several similarities and some differences with GD patients when compared to HCs on impulsivity, decision-making, and reward system, three core dimensions of addiction. These results could have relevant implications for the research of new treatment targets for OCD.

Original languageEnglish
Pages (from-to)392-401
Number of pages10
JournalCNS Spectrums
Volume25
Issue number3
DOIs
StatePublished - 1 Jun 2020
Externally publishedYes

Keywords

  • behavioral addiction
  • gambling disorder
  • impulsivity
  • obsessive-compulsive disorder
  • reward

Fingerprint

Dive into the research topics of 'Addicted to compulsion: Assessing three core dimensions of addiction across obsessive-compulsive disorder and gambling disorder'. Together they form a unique fingerprint.

Cite this