title: Posterior resting state EEG asymmetries are associated with hedonic valuation of food.
abstract: Research on the hedonic value of food has been important in understanding the motivational and emotional correlates of normal and abnormal eating behaviour. The aim of the present study was to explore associations between hemispheric asymmetries recorded during resting state electroencephalogram (EEG) and hedonic valuation of food. Healthy adult volunteers were recruited and four minutes of resting state EEG were recorded from the scalp. Hedonic food valuation and reward sensitivity were assessed with the hedonic attitude to food and behavioural activation scale. Results showed that parieto-occipital resting state EEG asymmetries in the alpha (8-12Hz) and beta (13-30Hz) frequency range correlate with the hedonic valuation of food. Our findings suggest that self-reported sensory-related attitude towards food is associated with interhemispheric asymmetries in resting state oscillatory activity. Our findings contribute to understanding the electrophysiological correlates of hedonic valuation, and may provide an opportunity to modulate the cortical imbalance by using non-invasive brain stimulation methods to change food consumption.
authors.affiliation: Donders Institute for Brain, Cognition and Behaviour, Radboud University, The Netherlands. Electronic address: marlies.vanbochove@gmail.com.
authors.forename: Marlies E
authors.initials: ME
authors.lastname: van Bochove
authors.affiliation: Donders Institute for Brain, Cognition and Behaviour, Radboud University, The Netherlands.
authors.forename: Eva
authors.initials: E
authors.lastname: Ketel
authors.affiliation: Donders Institute for Brain, Cognition and Behaviour, Radboud University, The Netherlands.
authors.forename: Miles
authors.initials: M
authors.lastname: Wischnewski
authors.affiliation: Donders Institute for Brain, Cognition and Behaviour, Radboud University, The Netherlands.
authors.forename: Joost
authors.initials: J
authors.lastname: Wegman
authors.affiliation: Donders Institute for Brain, Cognition and Behaviour, Radboud University, The Netherlands.
authors.forename: Esther
authors.initials: E
authors.lastname: Aarts
authors.affiliation: Twente Medical Systems international, The Netherlands.
authors.forename: Benjamin
authors.initials: B
authors.lastname: de Jonge
authors.affiliation: Donders Institute for Brain, Cognition and Behaviour, Radboud University, The Netherlands.
authors.forename: W Pieter
authors.initials: WP
authors.lastname: Medendorp
authors.affiliation: Donders Institute for Brain, Cognition and Behaviour, Radboud University, The Netherlands.
authors.forename: Dennis J L G
authors.initials: DJLG
authors.lastname: Schutter
mesh_terms: D000293:Adolescent; D000328:Adult; D000513:Alpha Rhythm / Q000502:physiology*; D001290:Attitude; D001611:Beta Rhythm / Q000502:physiology*; D005260:Female; D005502:Food; D006801:Humans; D008297:Male; D009778:Occipital Lobe / Q000502:physiology*; D010296:Parietal Lobe / Q000502:physiology*; D057181:Pleasure / Q000502:physiology*; D012201:Reward; D055815:Young Adult
keywords: Brain oscillations; Electroencephalography; Food; Hedonic valuation; Resting state asymmetry