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@ARTICLE{Brger:911472,
author = {Bürger, Zoé and Müller, Veronika I. and Hoffstaedter,
Felix and Habel, Ute and Gur, Ruben C. and Windischberger,
Christian and Moser, Ewald and Derntl, Birgit and Kogler,
Lydia},
title = {{S}tressor-{S}pecific {S}ex {D}ifferences in
{A}mygdala-{F}rontal {C}ortex {N}etworks},
journal = {SSRN eLibrary},
issn = {1556-5068},
address = {[S.l.]},
publisher = {Social Science Electronic Publ.},
reportid = {FZJ-2022-04743},
year = {2022},
abstract = {Women and men differ in their stress reactivity and stress
coping and in the prevalence rates of stress-related
disorders. Sex differences also exist in the reaction to
different stressors: while women seem more susceptible to
social exclusion, men seem to react stronger to achievement
stress. Following a model of stress coping, target brain
regions were identified including amygdala, dorsolateral
prefrontal cortex (dlPFC), ventral anterior cingulate cortex
(vACC) and medial prefrontal cortex (mPFC). We investigated
sex differences in stress reactivity on a subjective,
hormonal, and resting-state functional connectivity (rsFC)
level by administering two different stressors to 40 females
and 37 males: (1) achievement stress via a modified version
of the Montreal Imaging Stress Task, and (2) social
exclusion through the Cyberball paradigm. To assess
manipulation in amygdala-frontal networks, rs-scans were
obtained before and after each stressor. Additionally,
cortisol levels and subjective affect were assessed. For
social exclusion, amygdala–vACC and amygdala–mPFC rsFC
was higher in females than males, with a positive
association of amygdala–vACC rsFC with cortisol in
females. Further, amygdala–vACC rsFC was higher for social
exclusion compared to achievement stress in females. For
achievement stress, associations of positive affect with
amygdala–mPFC rsFC and anger with amygdala–vACC rsFC
were observed. Higher amygdala–vACC rsFC and its positive
association with cortisol indicates a higher need for
processing and coping with social exclusion in women than
men. Higher amygdala–mPFC rsFC, however, indicates
feelings of reward and social gain, pointing to positive
effects of social affiliation. Thus, for females, feeling
socially affiliated might be more fundamental than for
males. Contrarily, during achievement stress a different
pattern emerged with higher amygdala–mPFC and lower
amygdala–vACC rsFC being associated with more negative
mood, which might be associated with goal directed
behaviour. Thus, our data indicate sex-specific rsFC,
cortisol and mood patterns during social exclusion and
achievement stress and contribute to a better understanding
of sex differences in rsFC due to different stressors.},
cin = {INM-7 / INM-10},
ddc = {330},
cid = {I:(DE-Juel1)INM-7-20090406 / I:(DE-Juel1)INM-10-20170113},
pnm = {5253 - Neuroimaging (POF4-525)},
pid = {G:(DE-HGF)POF4-5253},
typ = {PUB:(DE-HGF)25},
doi = {10.2139/ssrn.4134211},
url = {https://juser.fz-juelich.de/record/911472},
}