GSR levels units (microsiemens?)

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Urumi
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Joined: Sat Apr 18, 2015 4:00 pm

GSR levels units (microsiemens?)

Post by Urumi » Sat Apr 18, 2015 4:32 pm

Hi guys! :D I recently started using physiology for an experiment in my lab but I'm not really sure about the data. I used the IOM biofeedback system and the program lightstone monitor.
The database is pretty simple and I have one column composed by the RR that I converted in bpm and another column that should be composed by the GSR but I don't understand if they are microsiemens or not.
The baseline data are composed by numbers like 5.7, 5.68, 5,62 while the experimental data goes between s to 7,22.

Is that possible that they are not microsiemens? The humans levels of GSR should be between 1 to 20 if i remember right.
:?: :?: :?:

Coen
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Re: GSR levels units (microsiemens?)

Post by Coen » Mon Apr 20, 2015 2:06 pm

GSR (16 Hz version) scaling is in Siemens, with LSB = 31.25 picoSiemens (24 bit range is from - 262 microSiemens to +262 microSiemens, practical values are always positive).

Best regards, Coen (BioSemi)

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