 |
 |
> Thanks for the reply. >> >> Yes, I am doing fMRI. >> >> I am aware that I need to do a second level analysis... but I want to >> compare two groups at the second level, rather than simply running the >> standard second level analysis. Looking at previous papers and their >> methods sections has not really helped as they don't report the >> specifics >> of how to set this up in SPM. I can't find an example in the manual or >> any >> hints in the various help options and was hoping someone may give me a >> little more insight into how I may set it up. >> >> Thanks again, >> >> Lorelei >> >> >> >>> Are you doing fMRI? Why not just do a regular second-level analysis? >>> RE: head size issues - I shouldn't think it makes much of a difference >>> in >>> fMRI analysis, but I'm sure a Pubmed or Google Scholar search of >>> "gender >>> covariates fmri" could help. >>> >>> ________________________________________ >>> From: SPM (Statistical Parametric Mapping) [[log in to unmask]] On >>> Behalf >>> Of Lorelei Howard [[log in to unmask]] >>> Sent: Tuesday, February 08, 2011 6:53 AM >>> To: [log in to unmask] >>> Subject: [SPM] comparing men and women >>> >>> Hi everyone, >>> >>> I want to compare men and women in my experiment and am finding it >>> difficult to track down any guidance on how to do this in SPM. >>> >>> Does anyone have any links to useful websites/papers/texts that I could >>> use to work out how to set up this kind of comparison in SPM? >>> >>> I usually use scripts to run all of my analyses so it would be even >>> better >>> if someone had an example script they could pass on. >>> >>> Also, are there any issues I should be aware of when comparing male and >>> female brains? For example, does the difference in head size between >>> the >>> two groups have any detrimental influences? >>> >>> I would be grateful of any help or advice. >>> >>> Many thanks, >>> Lorelei >>> >>> >>> -- >>> Lorelei Howard >>> >>> Ph.D. Student >>> >>> Institute of Behavioural Neuroscience >>> Cognitive, Perceptual and Brain Sciences Department >>> University College London >>> 26 Bedford Way >>> WC1H 0AP >>> +44 (0)20 7679 8553 >>> >>> >> >> >> > -- Lorelei Howard Ph.D. Student Institute of Behavioural Neuroscience Cognitive, Perceptual and Brain Sciences Department University College London 26 Bedford Way WC1H 0AP +44 (0)20 7679 8553