title: The neural basis of emotions varies over time: different regions go with onset- and offset-bound processes underlying emotion intensity.
abstract: According to theories of emotion dynamics, emotions unfold across two phases in which different types of processes come to the fore: emotion onset and emotion offset. Differences in onset-bound processes are reflected by the degree of explosiveness or steepness of the response at onset, and differences in offset-bound processes by the degree of accumulation or intensification of the subsequent response. Whether onset- and offset-bound processes have distinctive neural correlates and, hence, whether the neural basis of emotions varies over time, still remains unknown. In the present fMRI study, we address this question using a recently developed paradigm that allows to disentangle explosiveness and accumulation. Thirty-one participants were exposed to neutral and negative social feedback, and asked to reflect on its contents. Emotional intensity while reading and thinking about the feedback was measured with an intensity profile tracking approach. Using non-negative matrix factorization, the resulting profile data were decomposed in explosiveness and accumulation components, which were subsequently entered as continuous regressors of the BOLD response. It was found that the neural basis of emotion intensity shifts as emotions unfold over time with emotion explosiveness and accumulation having distinctive neural correlates.
authors.affiliation: Faculty of Psychology and Educational Sciences, KU Leuven, Leuven, Belgium.
authors.forename: Maxime
authors.initials: M
authors.lastname: Résibois
authors.affiliation: Faculty of Psychology and Educational Sciences, KU Leuven, Leuven, Belgium.|Faculty of Psychology and Neuroscience, Maastricht University, Maastricht, The Netherlands.
authors.forename: Philippe
authors.initials: P
authors.lastname: Verduyn
authors.affiliation: Inserm U 1127, CNRS UMR 7225, Sorbonne Universités, UPMC Univ Paris 06, UMR S 1127, Institut du Cerveau et de la Moelle, ICM-A-IHU, Social and Affective Neuroscience (SAN) Laboratory & Prisme Platform, Paris, France.
authors.forename: Pauline
authors.initials: P
authors.lastname: Delaveau
authors.affiliation: Inserm U 1127, CNRS UMR 7225, Sorbonne Universités, UPMC Univ Paris 06, UMR S 1127, Institut du Cerveau et de la Moelle, ICM-A-IHU, Social and Affective Neuroscience (SAN) Laboratory & Prisme Platform, Paris, France.|AP-HP, Department of Psychiatry, Pitié-Salpêtrière Hospital, Paris, France.
authors.forename: Jean-Yves
authors.initials: JY
authors.lastname: Rotgé
authors.affiliation: Faculty of Psychology and Educational Sciences, KU Leuven, Leuven, Belgium.
authors.forename: Peter
authors.initials: P
authors.lastname: Kuppens
authors.affiliation: Faculty of Psychology and Educational Sciences, KU Leuven, Leuven, Belgium.
authors.forename: Iven
authors.initials: I
authors.lastname: Van Mechelen
authors.affiliation: Inserm U 1127, CNRS UMR 7225, Sorbonne Universités, UPMC Univ Paris 06, UMR S 1127, Institut du Cerveau et de la Moelle, ICM-A-IHU, Social and Affective Neuroscience (SAN) Laboratory & Prisme Platform, Paris, France.|AP-HP, Department of Psychiatry, Pitié-Salpêtrière Hospital, Paris, France.|Centre de NeuroImagerie de Recherche - CENIR, Institut du Cerveau et la Moelle (ICM), Sorbonne Universités, UPMC Univ Paris 06, Inserm, CNRS - Hôpital Pitié-Salpêtrière, Boulevard de l'hôpital, Paris, France.
authors.forename: Philippe
authors.initials: P
authors.lastname: Fossati
mesh_terms: D000328:Adult; D000679:Amygdala / Q000000981:diagnostic imaging / Q000502:physiology*; D001931:Brain Mapping / Q000379:methods*; D002540:Cerebral Cortex / Q000000981:diagnostic imaging / Q000502:physiology*; D004644:Emotions / Q000502:physiology*; D030141:Feedback, Psychological / Q000502:physiology*; D005260:Female; D006801:Humans; D008279:Magnetic Resonance Imaging; D008297:Male; D011932:Reading; D013850:Thinking / Q000502:physiology*; D013997:Time Factors; D055815:Young Adult
keywords: affective neuroscience; emotion dynamics; fMRI; intensity profiles