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Resting-state functional connectivity remains unaffected by preceding exposure to aversive visual stimuli

Geissmann, Léonie and Gschwind, Leo and Schicktanz, Nathalie and Deuring, Gunnar and Rosburg, Timm and Schwegler, Kyrill and Gerhards, Christiane and Milnik, Annette and Pflueger, Marlon O. and Mager, Ralph and de Quervain, Dominique J. F. and Coynel, David. (2018) Resting-state functional connectivity remains unaffected by preceding exposure to aversive visual stimuli. NeuroImage, 167. pp. 354-365.

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Abstract

While much is known about immediate brain activity changes induced by the confrontation with emotional stimuli, the subsequent temporal unfolding of emotions has yet to be explored. To investigate whether exposure to emotionally aversive pictures affects subsequent resting-state networks differently from exposure to neutral pictures, a resting-state fMRI study implementing a two-group repeated-measures design in healthy young adults (N = 34) was conducted. We focused on investigating (i) patterns of amygdala whole-brain and hippocampus connectivity in both a seed-to-voxel and seed-to-seed approach, (ii) whole-brain resting-state networks with an independent component analysis coupled with dual regression, and (iii) the amygdala's fractional amplitude of low frequency fluctuations, all while EEG recording potential fluctuations in vigilance. In spite of the successful emotion induction, as demonstrated by stimuli rating and a memory-facilitating effect of negative emotionality, none of the resting-state measures was differentially affected by picture valence. In conclusion, resting-state networks connectivity as well as the amygdala's low frequency oscillations appear to be unaffected by preceding exposure to widely used emotionally aversive visual stimuli in healthy young adults.
Faculties and Departments:03 Faculty of Medicine > Bereich Psychiatrie (Klinik) > Erwachsenenpsychiatrie UPK > Kognitive Neurowissenschaften (de Quervain)
03 Faculty of Medicine > Departement Klinische Forschung > Bereich Psychiatrie (Klinik) > Erwachsenenpsychiatrie UPK > Kognitive Neurowissenschaften (de Quervain)
07 Faculty of Psychology > Departement Psychologie > Forschungsbereich Klinische Psychologie und Neurowissenschaften > Cognitive Neuroscience (de Quervain)
UniBasel Contributors:de Quervain, Dominique J.-F.
Item Type:Article, refereed
Article Subtype:Research Article
Publisher:Elsevier
ISSN:1053-8119
e-ISSN:1095-9572
Note:Publication type according to Uni Basel Research Database: Journal article
Language:English
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Last Modified:12 Feb 2019 16:54
Deposited On:17 Apr 2018 08:54

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