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Communication Dans Un Congrès Année : 2021

Visual Position Impacts the Emotional Responses in Depression

Résumé

Emotional deficits in major depressive disorder lead to changes in the distribution of attention in the visual field. We investigate the impact of unpleasant and neutral pictures, presented in central and peripheral vision in 15 depression patients (DP) and 15 matched healthy controls (HC). Heart rate, skin conductance responses (SCRs) and electroencephalogram (EEG) were recorded. A spatiotemporal principal component analysis (PCA) was applied to the EEG, and ANCOVAs controlling for participants’ state- and traitanxiety and patients’ medication were performed to assess the effects of visual eccentricity and emotion. Unlike HC, DP showed for CV stimulation 1/ greater sensitivity with a response bias toward unpleasant pictures, 2/ larger SCRs, especially to unpleasant pictures, and 3/ deeper cardiac deceleration. Furthermore, eccentricity and emotion modulated cerebral components. Finally, results bring a new vista on visual capture of negative information and support methods to enlarge the attentional span of depressed patients.
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Dates et versions

hal-03376153 , version 1 (13-10-2021)

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Lucas de Zorzi. Visual Position Impacts the Emotional Responses in Depression. 20th World Congress of Psychophysiology (IOP 2021), University of Electronic Science and Technology of China; International Organization of Psychophysiology, Sep 2021, Chengdu, China. ⟨10.1016/j.ijpsycho.2021.07.049⟩. ⟨hal-03376153⟩
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