Subjective craving and event-related brain response to olfactory and visual chocolate cues in binge-eating and healthy individuals
Wolz, Ines (Hospital Universitari de Bellvitge)
Sauvaget, Anne (Centre Hospitalier Universitaire de Nantes)
Granero, Roser (Universitat Autònoma de Barcelona. Departament de Psicobiologia i de Metodologia de Ciències de la Salut)
Mestre-Bach, Gemma (Hospital Universitari de Bellvitge)
Baño, Marta (Hospital Universitari de Bellvitge)
Martín-Romera, Virginia (Universitat Autònoma de Barcelona. Departament de Psicobiologia i de Metodologia de Ciències de la Salut)
Veciana de las Heras, Misericordia (Universitat de Barcelona. Departament de Ciències Clíniques)
Jiménez-Murcia, Susana (Hospital Universitari de Bellvitge)
Jansen, A. (Maastricht University. Department of Clinical Psychological Science)
Roefs, Anne (Maastricht University. Department of Clinical Psychological Science)
Fernández-Aranda, Fernando (Hospital Universitari de Bellvitge)

Data:	2017
Resum:	High-sugar/high-fat foods are related to binge-eating behaviour and especially people with low inhibitory control may encounter elevated difficulties to resist their intake. Incentive sensitization to food-related cues might lead to increased motivated attention towards these stimuli and to cueinduced craving. To investigate the combined influence of olfactory and visual stimuli on craving, inhibitory control and motivated attention, 20 healthy controls and 19 individuals with binge-eating viewed chocolate and neutral pictures, primed by chocolate or neutral odours. Subjective craving and electroencephalogram activity were recorded during the task. N2 and Late Positive Potential (LPP) amplitudes were analysed. Patients reported higher craving than controls. Subjective craving, N2 and LPP amplitudes were higher for chocolate versus neutral pictures. Patients showed a higher relative increase in N2 amplitudes to chocolate versus neutral pictures than controls. Chocolate images induced significant increases in craving, motivated attention and measures of cognitive control. Chocolate odour might potentiate the craving response to visual stimuli, especially in patients with binge-eating.
Drets:	Aquest document està subjecte a una llicència d'ús Creative Commons. Es permet la reproducció total o parcial, la distribució, la comunicació pública de l'obra i la creació d'obres derivades, fins i tot amb finalitats comercials, sempre i quan es reconegui l'autoria de l'obra original.
Llengua:	Anglès
Document:	Article ; recerca ; Versió publicada
Publicat a:	Scientific reports, Vol. 7 (2017) , art. 41736, ISSN 2045-2322

DOI: 10.1038/srep41736
PMID: 28155875

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