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@PHDTHESIS{Wu:1014711,
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 = {Heinrich-Heine-Universität Düsseldorf},
type = {Dissertation},
reportid = {FZJ-2023-03406},
pages = {50},
year = {2023},
note = {Dissertation, Heinrich-Heine-Universität Düsseldorf,
2023},
abstract = {The study of brain-behavior relationships is a fundamental
aspect of neuroscience. Recently, it has become increasingly
popular to investigate brain-behavior relationships by
relating the interindividual variability in psychometric
measure to the interindividual variability in brain imaging
data. In particular, prediction approaches with
cross-validation can be useful for identifying generalizable
brain-behavior relationships in a data-driven manner.
Nevertheless, it remains to be ascertained what
brain-behavior relationships can be interpreted from the
prediction models, and how generalizable the models are to
fully new cohorts. In this work, we attempt to fill in the
gap of interpretability by developing a region-wise
$\acrfull{cbpp}$ framework. This framework involves a
region-wise approach where a prediction model is estimated
and evaluated for each brain region. The prediction accuracy
of each region-wise model is a direct indication of that
brain region's association with the psychometric measure
predicted. In study 1, we applied the framework to a range
of psychometric variables from a large healthy cohort and
demonstrated the helpfulness of the framework in
constructing region-wise psychometric prediction profiles or
psychometric-wise prediction pattern across the brain. In
study 2, we demonstrated the usefulness of the framework in
assessing cross-cohort replicability and generalizability in
terms of brain-behavior relationships derived from the
prediction models, instead of just based on prediction
accuracies. In study 3, we systematically examined existing
psychometric prediction studies, summarizing the trends in
the field, calling for the use of large cohorts and external
validation. Overall, our work suggested the importance of
interpretability and generalizability for psychometric
prediction, recommending the use of multiple large cohorts
in evaluating the interpretability and generalizability.},
cin = {INM-7},
cid = {I:(DE-Juel1)INM-7-20090406},
pnm = {5253 - Neuroimaging (POF4-525) / 5251 - Multilevel Brain
Organization and Variability (POF4-525)},
pid = {G:(DE-HGF)POF4-5253 / G:(DE-HGF)POF4-5251},
typ = {PUB:(DE-HGF)11},
url = {https://juser.fz-juelich.de/record/1014711},
}