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October 29, 2008 03:30PM
Hello AFNI experts,

I'm running a simple correlation analysis according to Gang's page. After running 3dSynthesize and isolating my EPI data I took a look at my seed time series. I was surprised to see the stitches for my run time points still there (see "seed_timeseries" attachment). I then plotted my raw data and the effects of no interest that I isolated with 3dSynthesize on the same graph using 1dplot, and saw that there was a scaling issue there (see "rawdata_effectsofnointerest" attachment). It appears that I need to increase my effects of no interest by 15% in order for it to match my raw data (see "rawdata_effofNoInterstx15%" attachment).

1deval -a Deconv1_prob_PEorthog2Prob_LftHipp_EffectsOfNoInterest_seed.1D -expr "a*1.155" > no_interest2.1D

Why is this the case?

Thanks,
Aaron
Subject Author Posted

3dSynthesize scaling issue

Aaron Mattfeld October 29, 2008 03:30PM

Re: 3dSynthesize scaling issue

Aaron Mattfeld October 29, 2008 03:31PM