Dear SPMers,
I have conducted a long term study using a working memory fmri paradigm
with:
a) 2 groups:
a1) drug users
a2) non-using controls
b) 2 measuring time points:
b1) t1
b2) t2
To investigate if drug use leads to alterations in brain activity I performed 2
separate paired t-tests for group a1 and a2.
Results:
1.) No differences between t1 and t2 in the controls (a2)
2.) Drug users show increased activity in two clusters comparing t1-t2
(a1)
My question:
Is it possible to get individual change values for the drug using subjects?
Participants are poly drug users and I would like to put these individual change
values in spss and perform correlational analysis with specific drugs which
have been consumed between t1 and t2.
Thanks in advance and regards
Ben
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