Physical activity reduces alcohol consumption induced by reward downshift

Elena Castejón; Esmeralda Fuentes-Verdugo; Pellón Suárez de Puga, Ricardo; Torres, Carmen

doi:https://doi.org/10.1037/pha0000587

Physical activity reduces alcohol consumption induced by reward downshift

Elena Castejón, Esmeralda Fuentes-Verdugo, Pellón Suárez de Puga, Ricardo y Torres, Carmen . (2023) Physical activity reduces alcohol consumption induced by reward downshift. Experimental and Clinical Psychopharmacology, 31(2), 404-413.

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Título	Physical activity reduces alcohol consumption induced by reward downshift
Autor(es)	Elena Castejón Esmeralda Fuentes-Verdugo Pellón Suárez de Puga, Ricardo Torres, Carmen
Materia(s)	Psicología
Abstract	Increased voluntary consumption of alcohol and other anxiolytics has been demonstrated in animals after experiencing frustrative reward devaluation (downshift) or omission. These results have been interpreted in terms of emotional self-medication. In the present study, we analyzed whether voluntary physical activity reduces alcohol intake induced by reward downshift. Sixty-four male Wistar rats were divided into eight groups (n = 8). Thirty-two (downshifted) animals received 32% sucrose during 10 preshift sessions (5 min), followed by 4% sucrose during five postshift sessions, whereas 32 (unshifted) controls were always exposed to 4% sucrose. Immediately after each consummatory session, animals were exposed to a 2-hr two-bottle preference test involving 32% alcohol versus water or water versus water. Half of the animals had also access to a wheel for voluntary running during the preference test. The results showed lower sucrose consumption in downshifted groups compared with unshifted controls (the frustrative reward downshift effect). Reward downshift significantly increased alcohol intake, this effect being absent in downshifted animals with access to the wheel. These findings suggest that physical exercise could be useful to prevent alcohol self-medication induced by frustrative nonreward. Public Health Significance Human and nonhuman studies suggest that consumption-dependent reduction in negative affect promotes alcohol intake. This “self-medication behavior” has been observed in frustrating situations involving reward loss. This study showed (in rats) that increased alcohol intake induced by a reward devaluation event was abolished by voluntary wheel running. Physical exercise could therefore be useful to prevent the maladaptive effects of frustration on drug use.
Palabras clave	alcohol consumption emotional self-medication frustration physical activity reward downshift
Editor(es)	American Psychological Association
Fecha	2023
Formato	application/pdf
Identificador	bibliuned:DptoPBI-FPSI-Articulos-Rpellon-0004 http://e-spacio.uned.es/fez/view/bibliuned:DptoPBI-FPSI-Articulos-Rpellon-0004
DOI - identifier	https://doi.org/10.1037/pha0000587
ISSN - identifier	1064-1297 - eISSN: 1936-2293
Nombre de la revista	Experimental and Clinical Psychopharmacology
Número de Volumen	31
Número de Issue	2
Página inicial	404
Página final	413
Publicado en la Revista	Experimental and Clinical Psychopharmacology, 31(2), 404-413.
Idioma	eng
Versión de la publicación	acceptedVersion
Tipo de recurso	Article
Derechos de acceso y licencia	http://creativecommons.org/licenses/by-nc-nd/4.0 info:eu-repo/semantics/openAccess
Tipo de acceso	Acceso abierto
Notas adicionales	The registered version of this article, first published in Experimental and Clinical Psychopharmacology, is available online at the publisher's website: https://doi.org/10.1037/pha0000587
Notas adicionales	La versión registrada de este artículo, publicado por primera vez en Experimental and Clinical Psychopharmacology, está disponible en línea en el sitio web del editor: https://doi.org/10.1037/pha0000587

Tipo de documento:	Artículo de revista
Collections:	Departamento de Psicología Básica I. Artículos Set de artículo Set de openaire

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Physical activity reduces alcohol consumption induced by reward downshift