Dear SPM,
Please help!
I have to explain the following:
In an erfMRI study (patiens vs controls) the significant task related
"activations" for patients and controls separately are not necessarily
overlapping with the sub threshold voxels we get out of a group comparison
between the two (e.g. there are brain areas "significantly different" in the
group comparison that do not show up in the individual patient/control data
in the first place).
Why is this so?
Thank you very much for your assistance.
Best wishes and regards,
Nicole
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Dr.Nicole Schmitz, Department of NeuroRadiology, Leiden University Medical
Center, Leiden, The Netherlands
phone: 0031 71 526 4761
fax: 0031 71526 6929
emai: [log in to unmask]
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