AFNI Message Board

History of AFNI updates  

|
January 26, 2017 10:53AM
James,

> Perhaps for my purposes the best thing to do is model at least one TR pre-stimulus using TENT, but I'd really like to hear what you
> think about what I've written, and any other thoughts you might have. In the end, I just want my paper to be a faithful reflection of the
> effects we observed.

With TENT, you've already assumed that the BOLD response started earlier than the stimulus onset times.

Here is one thought - How about this empirical approach? Try shifting the estimated HDR of the first (or second) condition rightward (or leftward) along the time axis a little bit until the two curves roughly match at the upstroke phase, and then compare the two curves in terms of their shape differences. That way you would be comparing the two curves after eliminating the anticipation effect.

You may also try CSPLIN/CSPLINzero instead of TENT/TENTzero to get smoother curve comparisons.

Gang
Subject Author Posted

TENT and TENTzero

jkeidel January 25, 2017 10:43AM

Re: TENT and TENTzero

Gang January 25, 2017 02:36PM

Re: TENT and TENTzero

jkeidel January 26, 2017 06:03AM

Re: TENT and TENTzero

Gang January 26, 2017 10:53AM

Re: TENT and TENTzero

jkeidel January 30, 2017 12:20PM

Re: TENT and TENTzero

Gang January 31, 2017 12:07PM

Re: TENT and TENTzero

jkeidel February 01, 2017 07:33AM

Re: TENT and TENTzero

Bob Cox January 25, 2017 06:49PM

Re: TENT and TENTzero

Gang January 26, 2017 10:41AM



Sorry, only registered users may post in this forum.

Click here to login