Dear Sungho,

First of all, thanks for your previous help in the topic titled as "error in the Specify 1st level - hemodynamic". Now, I have no more problem in that regard.

As I am using Shimadzu, LABNIRS device, I would like to process my data with your toolbox. So, I was wondering if it would be possible to read Shimadzu data with your toolbox or convert this kind of data to a format which is compatible with your device.

Thanks for your help and your time in advance.

Bests,
Bahareh

Hi Bahareh,

Shimadzu LABNIRS already converts light intensity to HbO and HbR concentrations, so you can skip the "Convert" step in spm_fnirs.

Here's a simple function that reads Shimadzu TXT output files and saves the data in NIRS.mat format for spm_fnirs. You can then use this file for the "Spatial" step and onwards.

Let me know if this works for you.

Sagi
 
Originally posted by BAHAREH BEHBOODI:

Dear Sagi,

Thanks for your kind help.
Yes. It perfectly worked for me. However, I had to change two lines of your code in order to save my data.
I changed these two lines:
P.fname.nirs = [pathName,'/NIRS_',prevName,'.mat'];
P.fname.pos = [pathName,'/POS_',prevName,'.mat'];

to:
P.fname.nirs = [pathName,'NIRS_',prevName,'.mat'];
P.fname.pos = [pathName,'POS_',prevName,'.mat'];

Thank you.

Bests,
Bahareh

Whenever I try to run the text2nirs function, I reicive this error:
__________________________________________________________________________________________________
Error using ones
Size inputs must be integers.

Error in txt2nirs (line 53)
P.mask = ones(1,P.nch);
___________________________________________________________________________________________________

Any idea what causes this, or how to solve it?

Best,

Geoff

Could you upload a sample of your data file that you're trying to convert?

Definitely.

Hello!

I am using Biopac fNIRS and facing similar problems as Wiebke (Oct 27, 2017) and Bahareh.
The output I have of my ' raw' data also already converts the light intensity values to HbO and HHb concentrations. How can Biopac data be read?
(attaching a sample file)
Many thanks in advance!
Regards
Myrto