Decision-making deficits in pathological gambling : the role of executive functions, explicit knowledge and impulsivity in relation to decisions made under ambiguity and risk
Ochoa, Cristian (Hospital Universitari de Bellvitge)
Alvarez-Moya, Eva M. (Hospital Universitari de Bellvitge)
Penelo Werner, Eva (Universitat Autònoma de Barcelona. Departament de Psicobiologia i de Metodologia de les Ciències de la Salut)
Aymamí, Maria Neus (Hospital Universitari de Bellvitge)
Gomez-Peña, Monica (Hospital Universitari de Bellvitge)
Fernández Aranda, Fernando (Hospital Universitari de Bellvitge)
Granero, Roser (Universitat Autònoma de Barcelona. Departament de Psicobiologia i de Metodologia de les Ciències de la Salut)
Vallejo-Ruiloba, Julio (Hospital Universitari de Bellvitge)
Menchón Magriñá, José Manuel (Hospital Universitari de Bellvitge)
Lawrence, Natalia (King's College London)
Jiménez-Murcia, Susana (Hospital Universitari de Bellvitge)
Universitat Autònoma de Barcelona. Departament de Psicobiologia i de Metodologia de les Ciències de la Salut

Fecha:	2013
Descripción:	11 pàg.
Resumen:	Background:Avariety of cognitive and emotional processes influence the decision-making deficits observed in pathological gambling (PG). This study investigated the role of immediate/delayed sensitivity to reward and punishment, executive functions, impulsivity and explicit knowledge in relation to decisionmaking performance on the original Iowa Gambling Task (IGT-ABCD) and a variant (IGT-EFGH). Methods: We assessed 131 consecutive patients with a diagnosis of PG by using executive functioning and decision-making tasks, self- report measures of impulsivity and explicit knowledge. Results: The majority of pathological gamblers (PGs) showed deficits in decision-making, characterized mainly by myopia for the future. Decisions made under risk showed different predictors. Performance on the IGT-ABCD for decisions made under risk was predicted by medium and high levels of explicit knowledge of the task, as well as by scores on the Disorderliness subscale and the degree of Stroop interference. By contrast, IGTEFGH results were only associated with self-report impulsivity measures. Conclusions: Decision making in PG involves distinct patterns of deficits, and the predictors differ depending on the reinforcement schedule. Decisions made under risk on the IGT-ABCD are associated with explicit knowledge, executive functions and impulsivity traits related to conscious awareness and control processes. On the IGT-EFGH, however, only impulsivity traits predict decision making.
Ayudas:	Ministerio de Ciencia e Innovación PSI2011-28349 Agència de Gestió d'Ajuts Universitaris i de Recerca 2009/SGR-1554
Nota:	Altres ajuts: Partial financial support was received from the Fondo de Investigación Sanitaria-FIS (PI081573),CIBER Fisiopatología de la Obesidad y Nutrición (CIBER-obn), and CIBER Salud Mental (CIBERsam) are supported by ISCIII. This work is part of the PhD thesis of Cristian Ochoa atthe University of Barcelona, who was supported by pre-doctoral Grant from AGAUR (FI 00606).
Derechos:	Aquest document està subjecte a una llicència d'ús Creative Commons. Es permet la reproducció total o parcial, la distribució, i la comunicació pública de l'obra, sempre que no sigui amb finalitats comercials, i sempre que es reconegui l'autoria de l'obra original. No es permet la creació d'obres derivades.
Lengua:	Anglès
Documento:	Article ; recerca ; Versió acceptada per publicar
Materia:	Pathological gambling ; Decision-making ; Impulsivity ; Iowa Gambling Task
Publicado en:	American Journal on Addictions, Vol. 22 (2013) , p. 492-499, ISSN 1521-0391

DOI: 10.1111/j.1521-0391.2013.12061.x

Postprint 11 p, 467.1 KB

El registro aparece en las colecciones:
Artículos > Artículos de investigación
Artículos > Artículos publicados