Thank you so much Doug! I just have one more question:
Before convolving regressors with HRF, I looked at X matrix and noticed
that the values of regressors have been changed/scaled. For example, the
original values in a regressor file are:
134.8300
0
141.1200
0
91.5310
0
96.1870
0
But they have
You can use the following matlab code. You can ignore the warning
printed after the toepliz operation. The OriginalRegressor should be a
vector of length Ntp, then write out the NewRegressor to a new external
regressor file.
TR=2; % seconds
Ntp=100;
t = TR*[0:Ntp-1]';
h = fast_spmhrf(t);
a =
Hi Doug,
Since our external regressors are stimulus-related (e.g. mean luminance of
stimuli), we need to convolve them with a hemodynamic response function. In
mkanalysis-sess, we have used -spmhrf 0 to model conditions. Is there a
code or Matlab script for HRF convolution, so that we apply exactl
No, they are not
On 02/17/2017 05:09 PM, Reza Rajimehr wrote:
> During the functional analysis in FS-FAST, are the external regressors
> convolved with the hemodynamic response function?
>
> Thanks,
> Reza
>
>
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> Freesurfer mailing list
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During the functional analysis in FS-FAST, are the external regressors
convolved with the hemodynamic response function?
Thanks,
Reza
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