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A transdiagnostic dimensional approach towards a neuropsychological assessment for addiction: an international Delphi consensus study

Yucel, Murat
; 
Oldenhof, Erin
; 
Ahmed, Serge H.
; 
Belin, David
; 
Billieux, Joel
; 
Bowden-Jones, Henrietta
; 
Carter, Adrian
; 
Chamberlain, Samuel R.
; 
Clark, Luke
; 
Connor, Jason P.
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Author
Yucel, Murat
Oldenhof, Erin
Ahmed, Serge H.
Belin, David
Billieux, Joel
Bowden-Jones, Henrietta
Carter, Adrian
Chamberlain, Samuel R.
Clark, Luke
Connor, Jason P.
Daglish, Mark
Dom, Geert
Dannon, Pinhas
Duka, Theodora
Fernandez-Serrano, Maria Jose
Field, Matt
Franken, Ingmar
Goldstein, Rita Z.
Gonzalez, Raul
Goudriaan, Anna E.
Grant, Jon
Gullo, M. J.
Hester, Robert
Hodgins, David
Le Foll, Bernard
Lee, Rico S. C.
Lingford-Hughes, Anne
Lorenzetti, Valentina
Moeller, Scott J.
Munafò, Marcus R.
Odlaug, Brian
Potenza, Marc N.
Segrave, Rebecca A.
Sjoerds, Zsuzsika
Solowij, Nadia
Van Den Brink, W.
van Holst, Ruth
Voon, Valerie
Wiers, R. W.
Fontenelle, Leonardo F.
Verdejo-Garcia, Antonio
Abstract
Background The US National Institutes of Mental Health Research Domain Criteria (RDoC) seek to stimulate research into biologically validated neuropsychological dimensions across mental illness symptoms and diagnoses. The RDoC framework comprises 39 functional constructs designed to be revised and refined, with the overall goal of improving diagnostic validity and treatments. This study aimed to reach a consensus among experts in the addiction field on the ‘primary’ RDoC constructs most relevant to substance and behavioural addictions. Methods Forty‐four addiction experts were recruited from Australia, Asia, Europe and the Americas. The Delphi technique was used to determine a consensus as to the degree of importance of each construct in understanding the essential dimensions underpinning addictive behaviours. Expert opinions were canvassed online over three rounds (97% completion rate), with each consecutive round offering feedback for experts to review their opinions. Results Seven constructs were endorsed by ≥ 80% of experts as ‘primary’ to the understanding of addictive behaviour: five from the Positive Valence System (reward valuation, expectancy, action selection, reward learning, habit); one from the Cognitive Control System (response selection/inhibition); and one expert‐initiated construct (compulsivity). These constructs were rated to be related differentially to stages of the addiction cycle, with some linked more closely to addiction onset and others more to chronicity. Experts agreed that these neuropsychological dimensions apply across a range of addictions. Conclusions The study offers a novel and neuropsychologically informed theoretical framework, as well as a cogent step forward to test transdiagnostic concepts in addiction research, with direct implications for assessment, diagnosis, staging of disorder, and treatment.
Keywords
Addiction, assessment, cognition, compulsions, decision-making, habit, RDoC, reward, transdiagnostic
Date
2018
Type
Journal article
Journal
Addiction
Book
Volume
114
Issue
6
Page Range
1095-1109
Article Number
ACU Department
School of Behavioural and Health Sciences
Faculty of Health Sciences
Collections
National School of Behavioural and Health Sciences
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URI
https://hdl.handle.net/20.500.14802/28609
Relation URI
DOI
10.1111/add.14424
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Open Access Status
Open access
License
CC BY 4.0
File Access
Open
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