Hi afni experts,

I just finished running an analysis with 1dGC.R and it worked rather well. Well I think!!?? In the experiment, n=15, 2 Conditions (A, B, and a Control for each), TR=1 s, 1500 timepoints for each A and B (and their respective control conditions), and I used 7 ROI.

Here's the output of the Group analysis for Condition A, at Lag 1.
1- Looks like practically all the connections are highly significant despite the fact that their strength are rather small, or are they??
I'm not sure what to do with these since I'm not sure what the Path Coefficients mean and whether the ones I obtained make sense.

2- What does the Lag mean? Is it better if A-> B at Lag 3 than Lag 1?


Path Coefficients
R_SPL R_PM1 SMA L_PM R_PM2 PFC L_SPL
R_SPL 0.4567 0.0444 0.0845 0.0241 0.0260 0.0197 0.0378
R_PM1 0.0826 0.5550 0.1028 0.0901 0.0927 0.0582 0.0534
SMA 0.0816 0.0601 0.3742 0.0568 0.0807 0.0691 0.0611
L_PM 0.0933 0.1010 0.1104 0.5905 0.0735 0.0943 0.0634
R_PM2 0.0679 0.1151 0.1101 0.0519 0.4340 0.0127 0.0935
PFC 0.0500 0.0395 0.0883 0.0740 0.0188 0.5092 0.0400
L_SPL 0.0478 0.0400 0.0788 0.0378 0.0608 0.0563 0.3674


P values
R_SPL R_PM1 SMA L_PM R_PM2 PFC L_SPL
R_SPL 0 0.004589 0.000000 0.056176 0.049899 0.021495 0.000075
R_PM1 0.000001 0 0.000148 0.000000 0.000000 0.000200 0.000006
SMA 0.000000 0.000306 0 0.000545 0.000002 0.000248 0.000000
L_PM 0.000000 0.000012 0.000000 0 0.000098 0.000594 0.000002
R_PM2 0.000051 0.000030 0.000000 0.000102 0 0.351797 0.000000
PFC 0.005076 0.047479 0.000000 0.000002 0.121403 0 0.001649
L_SPL 0.001064 0.002668 0.000000 0.008590 0.000152 0.000025 0


Thanks fro yor help!!

Pat Bedard