[Homer-users] HRF Plot

[Meryem Ayse Yucel]

Have you clicked on one of the channels on the top right corner of
EasyNIRS gui? Otherwise it will show nothing. (In the image you sent, it
does not seem to be so).

Meryem



> Hi all,
>
> I have a question about plotting an hemodynamic response function.
>
> NIRS data has been recorded with an ISS Imagant (srate=19.5312Hz) and
> then, converted to the nirs-format (according to the manual). I used
> Homer2 (v1.5) and loaded the standard config file. Then, I processed the
> data based on the standard options (see attached file: options.png).
> After processing all 30 datasets, I'd like to view the HRF. So, I select
> "show Run HRF" on Conc-data. Unfortunately, the plot window remains
> empty. Homer2 doesn't show any error messages.
>
> I uploaded an example dataset, which contains data of one out of three
> probes (all thee probes would take too much space...). It can be
> downloaded from (39.3MB):
> http://www.stud.uni-karlsruhe.de/~uubuq/subj06_run02.nirs
>
> This dataset only contains 3 out of 5 different conditions (i.e.
> condition 1, 2 and 3. Conditions 4 and 5 are in other datasets). When
> plotting the HRF, I am expecting an increase only in condition 1.
>
> I would really appreciate if anyone could have a look at it.
>
> Thank you in advance!
>
> Best Regards,
> Sebastian Hesslinger
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