[VoxBo] time series data

[Marina Bedny]

Hello,

I was wondering if someone could help me understand the nature of the  
time series information provided by VoxBo.
When you select % signal change (having set up the glm appropriately)  
I thought the output was the % signal change relative to baseline.  
But then what is the meaning of the % signal change when the trial  
index is set to baseline, which voxbo displays in the voxel surfer?  
What is the % signal change relative to?

An additional question is about the "images" variable (how many TR's  
or seconds the time series is averaged over).
Suppose the variable is set to 8 TR's, just using the first six  
values of the output is not the same as setting the variable to 6  
TR's. Why is that? How do I figure out the appropriate # of TR to use?

Finally, since a new update of VoxBo is about to come out, I'm taking  
the opportunity to plead for a function that fills in the relevant  
information into the averages.txt file. Also it would be really great  
to use vbdumpstats to extract time series data. Pretty please. Vbview  
currently has the potentially to provide a lot of nice time series  
info, but without updates extracting time series is extremely  
painful, particularly when each subject has a random order of  
conditions.

Thank you,

Marina