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@ARTICLE{Hirjak:125281,
author = {D. Hirjak and P. A. Thomann and R. C. Wolf and K. M. Kubera
and C. J. Goch$^*$ and J. Hering$^*$ and K. Maier-Hein$^*$},
title = {{W}hite matter microstructure variations contribute to
neurological soft signs in healthy adults.},
journal = {Human brain mapping},
volume = {38},
number = {7},
issn = {1065-9471},
address = {New York, NY},
publisher = {Wiley-Liss},
reportid = {DKFZ-2017-01420},
pages = {3552-3565},
year = {2017},
abstract = {Neurological soft signs (NSS) are core features of
psychiatric disorders with significant neurodevelopmental
origin. However, it is unclear whether NSS correlates are
associated with neuropathological processes underlying the
disease or if they are confounded by medication. Given that
NSS are also present in healthy persons (HP), investigating
HP could reveal NSS correlates, which are not biased by
disease-specific processes or drug treatment. Therefore, we
used a combination of diffusion MRI analysis tools to
provide a framework of specific white matter (WM)
microstructure variations underlying NSS in HP.NSS of 59 HP
were examined on the Heidelberg Scale and related to
diffusion associated metrics. Using tract-based spatial
statistics (TBSS), we studied WM variations in fractional
anisotropy (FA) as well as radial (RD), axial (AD), and mean
diffusivity (MD). Using graph analytics (clustering
coefficient-CC, local betweenness centrality -BC), we then
explored DTI-derived structural network variations in
regions identified by previous MRI studies on NSS.NSS scores
were negatively associated with RD, AD and MD in corpus
callosum, brainstem and cerebellum (P < 0.05, corr.). NSS
scores were negatively associated with CC and BC of the
pallidum, the superior parietal gyrus, the precentral
sulcus, the insula, and the cingulate gyrus (P < 0.05,
uncorr.).The present study supports the notion that WM
microstructure variations in subcortical and cortical
sensorimotor regions contribute to NSS expression in young
HP. Hum Brain Mapp, 2017. © 2017 Wiley Periodicals, Inc.},
cin = {E071 / E132},
ddc = {610},
cid = {I:(DE-He78)E071-20160331 / I:(DE-He78)E132-20160331},
pnm = {315 - Imaging and radiooncology (POF3-315)},
pid = {G:(DE-HGF)POF3-315},
typ = {PUB:(DE-HGF)16},
pubmed = {pmid:28429448},
doi = {10.1002/hbm.23609},
url = {https://inrepo02.dkfz.de/record/125281},
}