TY  - JOUR
PY  - 2018//
TI  - Resting-state functional connectivity remains unaffected by preceding exposure to aversive visual stimuli
JO  - NeuroImage
A1  - Geissmann, Léonie
A1  - Gschwind, Leo
A1  - Schicktanz, Nathalie
A1  - Deuring, Gunnar
A1  - Rosburg, Timm
A1  - Schwegler, Kyrill
A1  - Gerhards, Christiane
A1  - Milnik, Annette
A1  - Pflueger, Marlon O.
A1  - Mager, Ralph
A1  - de Quervain, Dominique J. F.
A1  - Coynel, David
SP  - 354
EP  - 365
VL  - 167
IS  - 
N2  - 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.<br><br>Copyright © 2017. Published by Elsevier Inc.<p />  <p>Language: en</p>
LA  - en
SN  - 1053-8119
UR  - http://dx.doi.org/10.1016/j.neuroimage.2017.11.046
ID  - ref1
ER  -