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@ARTICLE{Votinov:893283,
author = {Votinov, Mikhail and Goerlich, Katharina S. and Puiu,
Andrei A. and Smith, Elke and Nickl-Jockschat, Thomas and
Derntl, Birgit and Habel, Ute},
title = {{B}rain structure changes associated with sexual
orientation},
journal = {Scientific reports},
volume = {11},
number = {1},
issn = {2045-2322},
address = {[London]},
publisher = {Macmillan Publishers Limited, part of Springer Nature},
reportid = {FZJ-2021-02673},
pages = {5078},
year = {2021},
abstract = {Biological sex differences in brain function and structure
are reliably associated with several cortico-subcortical
brain regions. While sexual orientation (hetero- versus
homosexuality) has been similarly linked to functional
differences in several phylogenetically-old brain areas, the
research on morphological brain phenotypes associated with
sexual orientation is far from conclusive. We examined
potential cerebral structural differences linked to sexual
orientation in a group of 74 participants, including 37 men
(21 homosexual) and 37 women (19 homosexual) using
voxel-based morphometry (VBM). Gray matter volumes (GMV)
were compared with respect to sexual orientation and
biological sex across the entire sample using full factorial
designs controlling for total intracranial volume, age,
handedness, and education. We observed a significant effect
of sexual orientation for the thalamus and precentral gyrus,
with more GMV in heterosexual versus homosexual individuals,
and for the putamen, with more GMV in homosexual + than
heterosexual individuals. We found significant interactions
between biological sex and sexual orientation, indicating
that the significant effect for the putamen cluster was
driven by homosexual women, whereas heterosexual women had
increased precentral gyrus GMV. Heterosexual men exhibited
more GMV in the thalamus than homosexual men. This study
shows that sexual orientation is reflected in brain
structure characteristics and that these differ between the
sexes. The results emphasize the need to include or control
for potential effects of participants’ sexual orientation
in neuroimaging studies. Furthermore, our findings provide
important new insights into the brain morphology underlying
sexual orientation and likely have important implications
for understanding brain functions and behavior.},
cin = {INM-10},
ddc = {600},
cid = {I:(DE-Juel1)INM-10-20170113},
pnm = {5252 - Brain Dysfunction and Plasticity (POF4-525)},
pid = {G:(DE-HGF)POF4-5252},
typ = {PUB:(DE-HGF)16},
pubmed = {pmid:33658542},
UT = {WOS:000626140100007},
doi = {10.1038/s41598-021-84496-z},
url = {https://juser.fz-juelich.de/record/893283},
}