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@PHDTHESIS{Hahn:1038603,
author = {Hahn, Lisa},
title = {{N}euroimaging and behavioral biomarkers for
neuropsychiatric diseases},
school = {HHU Düsseldorf},
type = {Dissertation},
reportid = {FZJ-2025-01575},
pages = {82},
year = {2024},
note = {Dissertation, HHU Düsseldorf, 2024},
abstract = {To date, early recognition and diagnosis of many
neuropsychiatric diseases remainschallenging, resulting in
frequent under- or misdiagnosis. To reduce the suffering
ofpatients and to lower the economic burden,
neuropsychiatric research began to focus onbiomarker
development in the last two decades. While biomarkers can
serve differentpurposes and can be derived from a variety of
modalities, this thesis evaluates thecurrent state of
biomarker development for chronic and non-chronic
neuropsychiatricdiseases at the examples of behavioral
variant frontotemporal dementia (bvFTD),postpartum
depression (PPD), and adjustment disorder (AjD) in the
postpartum period.More specifically, the predictive value of
socio-demographic and clinical-anamnesticinformation in
addition to remote mood and stress assessments was evaluated
(study 1),and early structural and functional brain
alterations (study 2) were examined in PPD andAjD. Moreover,
spatial correlations of structural and functional
neuroimaging withneurotransmitter density were evaluated as
neurotransmitter vulnerability biomarker inbvFTD (study
3).While the first study demonstrated that PPD, AjD, and
healthy controls can be accuratelydifferentiated using
remote mood assessments and clinical-amnestic information
(i.e.,postnatal depression and attachment scores), the
second study revealed no robust earlystructural and
functional brain alterations in PPD and AjD. The third study
showed thatreduced functional connectivity in frontotemporal
and frontoparietal regions in patientswith bvFTD
co-localized with the distribution of receptors and
transporters of ´-aminobutyric acid-ergic,
norepinephrinergic, and serotonergic neurotransmitter
systems,and their encoding mRNA gene expression, indicating
a specific neurotransmittervulnerability in patients with
bvFTD.In summary, the first two studies demonstrated the
value of utilizing remote assessmentsin combination with
machine learning for early recognition of PPD and AjD.
Moreover,the third study demonstrated the potential of
spatial correlations of brain structure andfunction with
neurotransmitter density to assess neurotransmitter
vulnerability. In thefuture, these biomarker development
approaches may also prove useful for the earlyrecognition
and diagnosis of other neuropsychiatric diseases.},
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},
doi = {10.34734/FZJ-2025-01575},
url = {https://juser.fz-juelich.de/record/1038603},
}