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Neural correlates of the influence of mood states on perception and decision making

Procyk, Emmanuel
Defense Thèse de doctorat : Univ. Genève et Lausanne, 2016 - Neur. 167 - 2016/06/20
Abstract This thesis investigated the neural correlates of the influence of mood states on sensory processing and decision making. How mood states affect the processing of simple sensory stimuli and their underlying neural correlates is still unclear. To address this question, sensory stimuli were presented to healthy participants after the induction of a happy or sad mood, while their brain activity was recorded using fMRI. The results demonstrated that happiness and sadness have differential effects on the processing of simple sensory stimuli. The second experiment investigated the impact of mood states on monetary decision making. Eighteen participants performed a gambling task in an fMRI scanner after the induction of a happy or a sad mood state. The results showed that a happy mood state promotes gambling, and that happy and sad mood states exert opposite effects on reward and emotional brain regions, with the latter being recruited for more difficult decisions.
Keywords Functional MRIPerceptionDecision makingHappinessSadnessMood
URN: urn:nbn:ch:unige-860475
Note Thèse en Neurosciences des universités de Genève et de Lausanne
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Thesis (7.5 MB) - document accessible for UNIGE members only Limited access to UNIGE
Research groups Inserm U846
Neuroimagerie du Sommeil et de la Cognition (832)
Swiss National Science Foundation: 320030_135653
Swiss National Science Foundation: grant numbers: 320030-159862 and 320030-135653
Autre: Swiss Center for Affective Sciences
(ISO format)
WARROT, Delphine. Neural correlates of the influence of mood states on perception and decision making. Université de Genève. Thèse, 2016. doi: 10.13097/archive-ouverte/unige:86047 https://archive-ouverte.unige.ch/unige:86047

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Deposited on : 2016-08-15

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