I used the oxford_asl tool to create calibrated CBF images.
Registration and warping in MNI space was performed with FLIRT and
FNIRT. Then I created a design matrix (Higher-level analysis) for a
paired t-test with calibrated CBF images (already in MNI space).
Unfortunatley in the Data input section there is only the option for
"lower level FEAT subdirectories" or "Inputs are 3D cope images from
FEAT directories". Because I have neither one thing nor the other I
tried the option "Select cope images" and loaded the corresponding CBF
images (one input for one subject). When I try to run the anaylses I
get the message "Registration has not been run for all of the FEAT
directories that you have selected for group analysis". How can I run
the paired t-test without First-Level FEAT directories.
Ralf Veit PhD
Institute of Medical Psychology and Behavioral Neurobiology
Otfried-Müller str. 47