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e registration because the official MNI space has only been defined using affine registered brains. Best regards, -John On 14 February 2011 14:44, justine dupont <[log in to unmask]> wrote: > Dear experts > > I have run a DARTEL analysis and comparing the DARTEL template and the > regular T1 canonical brain I get the result attached. I was surprised that > the two images are so different in shape. My sample is 45 young healthy > adults, roughly equal numbers of males and females. Eyeballing the original > scans there are no 'outliers' or anomalies. Likewise there were no obvious > anomalies looking at the various stages of preprocessing. > > So I am not sure whether something has gone wrong, or whether my sample, for > some reason, had genuinely small brains, compared to the canonical T1, or > perhaps whether there is some other explanation. > > Thank you > > Justine > >