Optimization of blocked designs in fMRI studies

Maus, Bärbel; van Breukelen, G. J. P.; Goebel, R.; Berger, M. P. F.

doi:10.1007/s11336-010-9159-3

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Article (Scientific journals)

Optimization of blocked designs in fMRI studies

Maus, Bärbel; van Breukelen, G. J. P.; Goebel, R. et al.

2010 • In Psychometrika, 75 (2), p. 373–390

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https://hdl.handle.net/2268/113232

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10.1007/s11336-010-9159-3

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Keywords :

blocked design; optimal design; fMRI; efficiency; maximin

Abstract :

[en] Blocked designs in functional magnetic resonance imaging (fMRI) are useful to localize functional brain areas. A blocked design consists of different blocks of trials of the same stimulus type and is characterized by three factors: the length of blocks, i.e., number of trials per blocks, the ordering of task and rest blocks, and the time between trials within one block. Optimal design theory was applied to find the optimal combination of these three design factors. Furthermore, different error structures were used within a general linear model for the analysis of fMRI data, and the maximin criterion was applied to find designs which are robust against misspecification of model parameters.

Disciplines :

Neurosciences & behavior

Author, co-author :

Maus, Bärbel ; Maastricht University > Department of Methodology and Statistics

van Breukelen, G. J. P.

Goebel, R.

Berger, M. P. F.

Language :

English

Title :

Optimization of blocked designs in fMRI studies

Publication date :

2010

Journal title :

Psychometrika

ISSN :

0033-3123

eISSN :

1860-0980

Publisher :

Psychonomic Society, Research Triangle Park, United States - Virginia

Volume :

Issue :

Pages :

373–390

Peer reviewed :

Peer Reviewed verified by ORBi

Available on ORBi :

since 01 March 2012

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