Re: [Freesurfer] Paradigm files and event-related design

2010-03-29 Thread Douglas N Greve
Basically, you're right (it subtracts the average of each condition), but the answer is considerably more complicated! It will create a box car of 18 sec for Condition 1 and convolve that with a gamma function to create the regressor for Cond 1. It will create a boxcar of 3 sec for condition 2

[Freesurfer] Paradigm files and event-related design

2010-03-25 Thread Zeidan, Mohamed A.
I was wondering if someone could help me answer a relatively simple question: I set up a paradigm file (called recall.par) as follows: 01 18 2 21 3 27 1 45 2 48 3 and so on... Where in the right column, condition 1 is blank screen, 2 is a room with a lamp, and