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@ARTICLE{Serio:1026452,
author = {Serio, Bianca and Yilmaz, Deniz and Pritschet, Laura and
Grotzinger, Hannah and Jacobs, Emily G. and Eickhoff, Simon
B. and Valk, Sofie L.},
title = {{E}xploring sex-specific neuroendocrine influences on the
sensorimotor-association axis in single individuals},
journal = {bioRxiv beta},
address = {Cold Spring Harbor},
publisher = {Cold Spring Harbor Laboratory, NY},
reportid = {FZJ-2024-03401},
year = {2024},
abstract = {Human neuroimaging studies consistently show multimodal
patterns of variability along a key principle of macroscale
cortical organization – the sensorimotor-association (S-A)
axis. However, little is known about day-to-day fluctuations
in functional activity along this axis within an individual,
including sex-specific neuroendocrine factors contributing
to such transient changes. We leveraged data from two
densely sampled healthy young adults, one female and one
male, to investigate intra-individual daily variability
along the S-A axis, which we computed as our measure of
functional cortical organization by reducing the
dimensionality of functional connectivity matrices. Daily
variability was greatest in temporal limbic and ventral
prefrontal regions in both participants, and was more
strongly pronounced in the male subject. Next, we probed
local and system-level effects of steroid hormones and
self-reported perceived stress on functional organization.
Our findings revealed modest effects that differed between
participants, hinting at subtle –potentially
sex-specific– associations between neuroendocrine
fluctuations and intra-individual variability along the S-A
axis. In sum, our study points to neuroendocrine factors as
possible modulators of intra-individual variability in
functional brain organization, highlighting the need for
further research in larger samples.},
cin = {INM-7},
ddc = {570},
cid = {I:(DE-Juel1)INM-7-20090406},
pnm = {5251 - Multilevel Brain Organization and Variability
(POF4-525)},
pid = {G:(DE-HGF)POF4-5251},
typ = {PUB:(DE-HGF)25},
doi = {10.1101/2024.05.04.592501},
url = {https://juser.fz-juelich.de/record/1026452},
}