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@PHDTHESIS{Wu:1007357,
author = {Wu, Jianxiao},
title = {{B}rain {R}egion-wise {C}onnectivity-based {P}sychometric
{P}rediction {F}ramework, {I}nterpretation, {R}eplicability
and {G}eneralizability},
school = {HHU},
type = {Dissertation},
reportid = {FZJ-2023-02026},
pages = {50p},
year = {2022},
note = {Dissertation, HHU, 2022},
abstract = {The study of brain-behavior relationships is a fundamental
aspect of neuroscience.Recently, it has become increasingly
popular to investigate brain-behavior relationshipsby
relating the interindividual variability in psychometric
measure to the interindividualvariability in brain imaging
data. In particular, prediction approaches
withcross-validation can be useful for identifying
generalizable brain-behavior relationshipsin a data-driven
manner. Nevertheless, it remains to be ascertained what
brain-behaviorrelationships can be interpreted from the
prediction models, and how generalizable themodels are to
fully new cohorts. In this work, we attempt to fill in the
gap ofinterpretability by developing a region-wise
connectivity-based psychometric prediction(CBPP) framework.
This framework involves a region-wise approach where a
predictionmodel is estimated and evaluated for each brain
region. The prediction accuracy of eachregion-wise model is
a direct indication of that brain region’s association
with thepsychometric measure predicted. In study 1, we
applied the framework to a range ofpsychometric variables
from a large healthy cohort and demonstrated the helpfulness
ofthe framework in constructing region-wise psychometric
prediction profiles orpsychometric-wise prediction pattern
across the brain. In study 2, we demonstrated theusefulness
of the framework in assessing cross-cohort replicability and
generalizability interms of brain-behavior relationships
derived from the prediction models, instead of justbased on
prediction accuracies. In study 3, we systematically
examined existingpsychometric prediction studies,
summarizing the trends in the field, calling for the useof
large cohorts and external validation. Overall, our work
suggested the importance ofinterpretability and
generalizability for psychometric prediction, recommending
the useof multiple large cohorts in evaluating the
interpretability and generalizability.},
cin = {INM-7},
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)11},
url = {https://juser.fz-juelich.de/record/1007357},
}