Hi,
The following setup for calculating % signal change gave us an output ranging from -1900 to +1600. The input to 3dCalc was the output from 3dDeconvolve using a glt contrast between two different conditions. This doesn't seem to make much sense as a range for % signal change. Any suggestions?
Thank you,
Cendri & Philippe
3dcalc \
-a Decon${subject}_18view554Tr30SAN+orig[0] \ ## fit coeff of baseline
-b Decon${subject}_18view554Tr30SAN+orig[2] \ ## fit coeff of linear drift
-c Decon${subject}_18view554Tr30SAN+orig[50] \ ## fit coeff of contrast A vs N
-exp "100*c/(a+b*(554/2))" \ ##percent signal change calculation?
-fscale \
-prefix ${subject}_18view_Prcnt_AvN
