Hello,
I'm trying to figure out how to model responses with 3dDeconvolve where we are assuming the activity in the brain is linearly increasing during stimulus application. We have one factor, A in our block design. Here is an example of a hypothetical .1D file for factor A:
0's are baseline or rest, numbers 1-4 equal the linear increase in response.
0 0 0 1 2 3 4 0 0 0 0 1 2 3 4 0 0 0 0 1 2 3 4 0 0 0 0 1 2 3 4.
I've read somewhere on the message board that in a model looking at a linear increasing response,one should incoporate 2 factors: 1st factor measuring the constant response, 2nd factor measuring the linear increasing response. If so or if not, how would I go about setting up my .1D files to run through 3dDeconvolve. Any help would greatly be appreciated.
Thanks