Re: [Marsbar-users] % signal change and parametric modulation

[Matthew B. <mat...@gm...>]

Hi,

> Using MarsBar, I would like to evaluate the % signal change in that
> cluster as a function of the rating (i.e., % signal change between low
> and high ratings, % signal change between intermediate and high). I
> thought of creating a new design with regressors corresponding to each
> level of the parametric modulator but that doesn't sound right. Any
> hint on how to proceed?

That seems a reasonable approach to me....   I think you would have to
do that if you want to be able to see the shape of the curve relating
the signal change to the parameter.  The model will be different of
course, so the results may also differ...

Best,

Matthew