Dear SPMers,
I am currently doing an event-related fMRI study using a memory task. I
would like to do an RFX analysis on hits - baseline.
However, the problem is that the individual subjects have considerably
different hit scores, so that different numbers of events are taking into
the first level analysis, giving different degrees of freedom (ranging from
90 - 130).
I understand that this can be problematic in that RFX analysis assumes
equal degrees of freedom.
Is there any way to correct for this?
Thank you,
Sander Daselaar
S.M. Daselaar
Department of Neurology
University Hospital "Vrije Universiteit"
Postal address: Visitors address:
c/o Secr. EMGO Dept. Meander L240
vd Boechorstraat 7 De Boelelaan 1117
1081 BT Amsterdam 1007 MB Amsterdam
The Netherlands
Tel: +31 (0)20 4444280
e-mail: [log in to unmask]
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
|