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@ARTICLE{Ngo:863645,
author = {Ngo, Gia H. and Eickhoff, Simon B. and Nguyen, Minh and
Sevinc, Gunes and Fox, Peter T. and Spreng, R. Nathan and
Yeo, B. T. Thomas},
title = {{B}eyond consensus: {E}mbracing heterogeneity in curated
neuroimaging meta-analysis},
journal = {NeuroImage},
volume = {200},
issn = {1053-8119},
address = {Orlando, Fla.},
publisher = {Academic Press},
reportid = {FZJ-2019-03656},
pages = {142 - 158},
year = {2019},
abstract = {Coordinate-based meta-analysis can provide important
insights into mind-brain relationships. A popular approach
for curated small-scale meta-analysis is activation
likelihood estimation (ALE), which identifies brain regions
consistently activated across a selected set of experiments,
such as within a functional domain or mental disorder. ALE
can also be utilized in meta-analytic co-activation modeling
(MACM) to identify brain regions consistently co-activated
with a seed region. Therefore, ALE aims to find consensus
across experiments, treating heterogeneity across
experiments as noise. However, heterogeneity within an ALE
analysis of a functional domain might indicate the presence
of functional sub-domains. Similarly, heterogeneity within a
MACM analysis might indicate the involvement of a seed
region in multiple co-activation patterns that are dependent
on task contexts. Here, we demonstrate the use of the
author-topic model to automatically determine if
heterogeneities within ALE-type meta-analyses can be
robustly explained by a small number of latent patterns. In
the first application, the author-topic modeling of
experiments involving self-generated thought (N = 179)
revealed cognitive components fractionating the default
network. In the second application, the author-topic model
revealed that the left inferior frontal junction (IFJ)
participated in multiple task-dependent co-activation
patterns (N = 323). Furthermore, the author-topic model
estimates compared favorably with spatial independent
component analysis in both simulation and real data.
Overall, the results suggest that the author-topic model is
a flexible tool for exploring heterogeneity in ALE-type
meta-analyses that might arise from functional sub-domains,
mental disorder subtypes or task-dependent co-activation
patterns. Code for this study is publicly available
$(https://github.com/ThomasYeoLab/CBIG/tree/master/stable_projects/meta-analysis/Ngo2019_AuthorTopic).$},
cin = {INM-7},
ddc = {610},
cid = {I:(DE-Juel1)INM-7-20090406},
pnm = {574 - Theory, modelling and simulation (POF3-574)},
pid = {G:(DE-HGF)POF3-574},
typ = {PUB:(DE-HGF)16},
pubmed = {pmid:31229658},
UT = {WOS:000481579300012},
doi = {10.1016/j.neuroimage.2019.06.037},
url = {https://juser.fz-juelich.de/record/863645},
}