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@ARTICLE{Eickhoff:809682,
author = {Eickhoff, Simon and Nichols, Thomas E. and Laird, Angela R.
and Hoffstaedter, Felix and Amunts, Katrin and Fox, Peter T.
and Bzdok, Danilo and Eickhoff, Claudia R.},
title = {{B}ehavior, sensitivity, and power of activation likelihood
estimation characterized by massive empirical simulation},
journal = {NeuroImage},
volume = {137},
issn = {1053-8119},
address = {Orlando, Fla.},
publisher = {Academic Press},
reportid = {FZJ-2016-02616},
pages = {70-85},
year = {2016},
abstract = {Given the increasing number of neuroimaging publications,
the automated knowledge extraction on brain-behavior
associations by quantitative meta-analyses has become a
highly important and rapidly growing field of research.
Among several methods to perform coordinate-based
neuroimaging meta-analyses, Activation Likelihood Estimation
(ALE) has been widely adopted. In this paper, we addressed
two pressing questions related to ALE meta-analysis: i)
Which thresholding method is most appropriate to perform
statistical inference? ii) Which sample size, i.e., number
of experiments, is needed to perform robust meta-analyses?
We provided quantitative answers to these questions by
simulating more than 120,000 meta-analysis datasets using
empirical parameters (i.e., number of subjects, number of
reported foci, distribution of activation foci) derived from
the BrainMap database. This allowed to characterize the
behavior of ALE analyses, to derive first power estimates
for neuroimaging meta-analyses, and to thus formulate
recommendations for future ALE studies. We could show as a
first consequence that cluster-level family-wise error (FWE)
correction represents the most appropriate method for
statistical inference, while voxel-level FWE correction is
valid but more conservative. In contrast, uncorrected
inference and false-discovery rate correction should be
avoided. As a second consequence, researchers should aim to
include at least 20 experiments into an ALE meta-analysis to
achieve sufficient power for moderate effects. We would like
to note, though, that these calculations and recommendations
are specific to ALE and may not be extrapolated to other
approaches for (neuroimaging) meta-analysis.},
cin = {INM-1},
ddc = {610},
cid = {I:(DE-Juel1)INM-1-20090406},
pnm = {571 - Connectivity and Activity (POF3-571) / HBP - The
Human Brain Project (604102) / SMHB - Supercomputing and
Modelling for the Human Brain (HGF-SMHB-2013-2017)},
pid = {G:(DE-HGF)POF3-571 / G:(EU-Grant)604102 /
G:(DE-Juel1)HGF-SMHB-2013-2017},
typ = {PUB:(DE-HGF)16},
UT = {WOS:000378048700008},
pubmed = {pmid:27179606},
doi = {10.1016/j.neuroimage.2016.04.072},
url = {https://juser.fz-juelich.de/record/809682},
}