Dear SPMers,
I had a related question few days back (without any
replies). i am trying to find out if i can enter the
voxel intensities of con* images into a correlation
analysis or other statistical tests.
For example, simple regression models do investigate
the question of voxels that correlate with a parameter
such as task difficulty. The question i am trying to
address is the correlation between voxel values from
two conditions. Should i take N-2 as df to assess
significance? The idea is to be able to generate a
correlation map instead of an SPM.
Any pointers as to how to do this either within SPM or
in any other public software for fMRI is greatly
appreciated.
Thanks
- Krishna
Krishna P. Miyapuram
Work : Graduate Student, Dept of Anatomy, Univ of Cambridge
Home : 25, Parkside, Room 10 (Phone +44 - 1223 - 476858
Address : Downing College, Regent Street, Cambridge, CB21DQ, England
URL : http://people.pwf.cam.ac.uk/kpm23/index.html
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