Analysis methods
FMRI data processing was carried out using FEAT (FMRI Expert Analysis Tool) Version 6.00, part of FSL (FMRIB's Software Library, www.fmrib.ox.ac.uk/fsl). Higher-level analysis was carried out using a fixed effects model, by forcing the random effects variance to zero in FLAME (FMRIB's Local Analysis of Mixed Effects) [Beckmann 2003, Woolrich 2004, Woolrich 2008].
References
[Beckmann 2003] C. Beckmann, M. Jenkinson and S.M. Smith. General multi-level linear modelling for group analysis in FMRI. NeuroImage 20(1052-1063) 2003.
[Woolrich 2004] M.W. Woolrich, T.E.J Behrens, C.F. Beckmann, M. Jenkinson and S.M. Smith. Multi-level linear modelling for FMRI group analysis using Bayesian inference. NeuroImage 21:4(1732-1747) 2004
[Woolrich 2008] M.W. Woolrich. Robust Group Analysis Using Outlier Inference. NeuroImage 41:2(286-301) 2008
Design matrix