I have run the script hitachi2nirs.m created by Rebecca Dewey in Matlab. I chose not to remove the mark (Do you want to remove the marker at the end of each stimulus? y/n: n) during the processing.

However, when I import the .nirs file (automatically converted to .snirf file) in Homer 3, there are no markers at all.

Did anyone experience this problem? It would be great if there is any implications. Fully appreciated with any help!

I believe the markers should be saved into a variable named "Aux" - can you see this when you open the nirs file in Matlab?

Cheers,

Rebecca

Hi Rebecca,

Thank you very much for your reply! Yes, I saw the "aux" variable when I open the nirs file in Matlab.

However, I opened the .nirs file in Homer3, which convert the .nirs file into .snirf file automatically, then I did not see any markers in Homer3 (please find an image of it).
Can you please let me know what should I do to show the markers? Thank you a lot!


Best,
Tingting

Ok, good that you have an aux variable. I have not used Homer3, but I remember in Homer2 there used to be a way to "import" markers from the aux variable. It was just a couple of clicks and simple to do. Can you find anything like that in Homer3?

Hi Rebecca,

Thank you very much! I thought it is only possible to add markers manually in Homer3 if the markers were not imported automatically.

But indeed there is a way to "import" markers from aux. I am pointing it out here just in case anyone needs it.
That is, go to the "Tools" column and select "Edit Stimulus", then "preview" aux and add markers.


Thank you again for your help.

Best,
Tingting

Brilliant, thanks so much Tingting!

Rebecca