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@PHDTHESIS{Liu:897091,
author = {Liu, Xiaojin},
title = {{M}ulti-modal {P}arcellation of the {H}uman {S}triatum:
{F}unctions, {C}linical{R}elevance and its {S}pecific
{C}onnectivity},
school = {Heinrich Heine University Düsseldorf},
type = {Dissertation},
reportid = {FZJ-2021-03590},
pages = {-},
year = {2021},
note = {Dissertation, Heinrich Heine University Düsseldorf, 2021},
abstract = {The human striatum is a part of subcortical nuclei and
plays an important role in both cognitive andmotor
functions. Its dysfunction has been implicated in the
pathophysiology of various disorders,including Parkinson’s
disease (PD) and schizophrenia (SCZ). The human striatum is
known to becomposed of several functionally and structurally
divergent subregions. However, previous studiesindependently
investigated its functional and structural parcellations,
the extent of multi-modalconvergent organization of the
striatum remains unclear. Also, human and macaque striatum
have a widehomology because in both the striatum is related
to several psychological and behavior
functions.Investigating the functional and structural
differences between human and macaque striatal subregionsmay
help us to understand the evolutionary divergence and reveal
why human is vulnerability to someneuropsychiatric diseases.
So far, the difference in functional organization of the
striatum with crossspeciescomparison is still unclear. In
this dissertation, we aimed to 1) investigate the
multi-modalorganization of the human striatum by jointly
analyzing the resting-state functional connectivity
(RSFC),probabilistic diffusion tractography (PDT), and
structural covariance (SC) and examine the structuralatrophy
of ensuing parcels in PD and SCZ; 2) compare human and
macaque striatal subregionsaccording to their homologous
cortico-striatal connectivity; and 3) introduced a
standardized toolbox‘CBPtools’ for connectivity-based
parcellation (CBP) analysis. In study 1 we found convergent
clustersin the dorsal, dorsolateral, rostral, ventral and
caudal striatum and observed significant structural
atrophyin the rostral and ventral striatum common to both PD
and SCZ, and atrophy specifically attributable toPD in the
dorsolateral striatum. In study 2, dissimilar
cortico-striatal RSFC within the dorsal caudatewas detected
through cross-species comparison. In addition, abnormal RSFC
was found not onlybetween dorsal caudate, but also between
rostral caudate, ventral, central and caudal putamen
andwidespread cortical regions for both PD and SCZ patients.
In sum, this dissertation revealed a crossmodalconvergent
organization of the human striatum that can be used to
investigate the structural andfunctional variability in
aging and diseases; and provided a testable hypothesis that
abnormalities indorsal caudate with human-specific
connectivity may contribute to human neuropsychiatric
disorders.},
cin = {INM-7},
cid = {I:(DE-Juel1)INM-7-20090406},
pnm = {5253 - Neuroimaging (POF4-525)},
pid = {G:(DE-HGF)POF4-5253},
typ = {PUB:(DE-HGF)11},
url = {https://juser.fz-juelich.de/record/897091},
}