Ledalab: Type 1 (text file). What are the two columns?

Ledalab gives an example of which type of data can be imported with the Type 1 example on their page. Is the left column time and is the right column GSR data?

Answer 1

[Walter Roberson]

Column 1 is time.

Column 2 is Conductance.

Column 3 is nid for events, or 0 if there is no event. Note, though, that the offset between the time of event in the sample .mat file and the time in the first column of the text file is not consistent, with the event in the .mat being potentially slightly before or after the time in the first column of the text file.

[Oscar Mier]

Thank you, Walter! I have another question if you don't mind. I'm trying to import data into Ledalab. I need a way to somehow get it from the Brain Vision Recorder raw format into a format Ledalab can import. I dont have brain vision analyzer either. Since Ledalab wants the data in a ascii format, I used EEGLab plugin to export the data as an ascii file. If I reformat the data to form 3 columns (time, conductance, and NID) like in the example given above, would it then be compatible for Ledalab to import? I hope my question makes sense. I am fairly new to MATLAB.

[Walter Roberson]

It looks to me as of Ledalab should be able to handle files in that format.

[Oscar Mier]

One last question, what is nid?

[Walter Roberson]

"Numerical ID of event"

[Oscar Mier]

Thanks, Walter! I was able to successfully import the data into Ledalab.