Forwarding message below on behalf of Sergio Arana. Any help gratefully
received.
Best wishes
Paul Fletcher
Subject: (spm5) PPI error at 138
Dear All,
I got the following error after selecting a VOI for a psychophysiological
interaction:
??? Cell contents reference from a non-cell array object.
Error in ==> spm_peb_ppi at 138
p = load(P{1},'xY');
??? Error using ==> spm_peb_ppi
Cell contents reference from a non-cell array object.
Can someone clarify what this error means and how I should go about
resolving it?
My specified design matix includes 2 sessions with 2 conditions per
session. When extracting the time-series for the VOI, spm5 forces you to
choose one of the 2 sessions (scalar required). Is the above error occuring
because the VOI only represents 1 of the 2 sessions specified in the design
matrix? If so, how can I create a VOI with the extracted time-series of
both sessions?
Thanks in advance,
Sergio
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