GSR extraction from bdf file

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Aemotion
Posts: 3
Joined: Tue May 01, 2018 5:18 pm

GSR extraction from bdf file

Post by Aemotion » Tue May 01, 2018 5:53 pm

Hello,

We record skin conductance with GSR electrodes on the palm as well as 64 channel EEG cap. The software we use to analyze EEG data does not work with GSR. Could someone please direct me to easiest way to extract GSR values from our bdf? We use an activetwo AD-box and actiview software for data recording.

Thank you

Coen
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Re: GSR extraction from bdf file

Post by Coen » Wed May 02, 2018 11:26 am

Use EDF browser (https://www.teuniz.net/edfbrowser/), for scaling see viewtopic.php?f=7&t=1013

Best regards, Coen (BioSemi)

Aemotion
Posts: 3
Joined: Tue May 01, 2018 5:18 pm

Re: GSR extraction from bdf file

Post by Aemotion » Wed May 02, 2018 1:42 pm

Hello,

Thank you for the reply. Does the EDF browser only work for BDF+ files? I am not sure we use those. Are all BDF files also BDF+ files?

Thank you

Aemotion
Posts: 3
Joined: Tue May 01, 2018 5:18 pm

Re: GSR extraction from bdf file

Post by Aemotion » Wed May 02, 2018 1:44 pm

Also, is there a way to compile bdf files to make Aux1 GSR available or should it always be visible from software such as EEGlab?

Coen
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Posts: 914
Joined: Fri Mar 26, 2004 7:00 pm
Location: Amsterdam, Netherlands
Contact:

Re: GSR extraction from bdf file

Post by Coen » Wed May 02, 2018 1:52 pm

BDF is not BDF+, EDF browser reads both, ActiView generates BDF files.

Use one of the standard solutions (https://www.biosemi.com/download.htm), or make your own file reader based on BDF specs (https://www.biosemi.com/faq/file_format.htm).

Best regards, Coen (BioSemi)

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