Localizing areas with significant inter-individual variation: Testing Variance Components in a Multi-level GLM

[...]the use of likelihood based methods for constructing tests for non-zero VCs is a non-standard problem, as the null hypothesis places the true value of the variance parameter on the boundary of the parameter space defined by the alternative hypothesis. The method is applied to continuous arteria...

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Bibliographic Details
Published in:NeuroImage (Orlando, Fla.) Fla.), 2009-07, Vol.47, p.S125-S125
Main Authors: Lindquist, M.A., Spicer, J., Leotti, L., Asllani, I., Wager, T.D.
Format: Article
Language:English
Subjects:
Hypotheses
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Summary:[...]the use of likelihood based methods for constructing tests for non-zero VCs is a non-standard problem, as the null hypothesis places the true value of the variance parameter on the boundary of the parameter space defined by the alternative hypothesis. The method is applied to continuous arterial spin labeling (CASL) data (Fig. 4) collected while performing a social evaluative threat task (n=12), allowing us to detect regions exhibiting significant individual differences.
ISSN:1053-8119
1095-9572
DOI:10.1016/S1053-8119(09)71204-2