[Eeglablist] import biosemi 128 channel data into EEGLAB and channel location file

[Makoto Miyakoshi]

Dear Guofa,

This is interesting to me too

1)      do I really need to assign a reference channel to load .bdf file?
Since they say 'Use reference or you'll lose 40dB' right? Why don't you do
a simple experiment; in one condition you import .bdf file without
specifying a reference electrode and in the other condition you do. Do you
see difference in spectra?

The active electrode, as I remember, 'injects' current so that it defines
the baseline. If this is true, the reference electrode could be any of
them... you may want to test this too. I would really appreciate if you can
tell me what you observe in this experiment.

Makoto

2014-04-07 13:13 GMT-07:00 Shou, Guofa <gshou at ou.edu>:

>   Hi, All,
>
>    I have two questions about loading the biosemi 128 channel .bdf file
> into EEGLAB:
>
> 1)      do I really need to assign a reference channel to load .bdf file?
>
> 2)      Is there anybody has a channel location file for the biosemi 128
> channels? If so, could you please send me a copy.
>
> I really appreciate your help!
>
> Guofa
>
>
>
> Guofa Shou
>
> Computational Neuroengineering and Neuroimaging Lab
>
> School of Electrical and Computer Engineering
>
> University of Oklahoma, Norman, OK
>
> 405-496-8661
>
>
>
>
>
>
>
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-- 
Makoto Miyakoshi
Swartz Center for Computational Neuroscience
Institute for Neural Computation, University of California San Diego
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