kati Wrote:
-------------------------------------------------------
> Hi Gang,
>
> Thanks for the tip. Just to be sure, I only need to add the line:
>
> -concat concat.1D
>
> to 3dDeconvolve? (where concat.1D contains the line: 0 80 160 240) (these are the onset timepts
> of each run). In the documentation for 3dREMLfit, there doesn't seem to be any option to handle
> concatenation there.

Yes, the option '-concat concat.1D' has to be in 3dDeconvolve first, and the information is passed over to 3dREMLfit. It's just that most of the information 3dREMLfit needs has to come from 3dDeconvolve directly.

> I re-ran my analysis and actually the maps are exactly the same (and have the same values). So
> either the concatenation points don't affect the calculations, or I have missed something else...

Do you mean that you are comparing two analyses, one with and the other without the option '-concat concat.1D'? If so, the results of no difference do seem to indicate that the disjointed time points didn't have any noticeable impact on the serial correlation estimation.

Gang



Edited 1 time(s). Last edit at 09/05/2012 11:32AM by Gang.