[Eeglablist] Recovering FCz used as online reference (ActiCap)

[berry van den berg]

Dear Clemens,

I think your question is: how can I rereference my data to, for instance,
left mastoid and add FCz (the channel thats 'missing' now) back to the
data?

This chapter will help you:
http://sccn.ucsd.edu/wiki/Chapter_04:_Preprocessing_Tools

Good luck,




On 10 December 2015 at 02:07, Makoto Miyakoshi <mmiyakoshi at ucsd.edu> wrote:

> Dear Clemens,
>
> I never heard someone used ground channel for analysis. Including a
> reference channel is meaningless since ref-to-ref difference must be all
> zero, no?
>
> Makoto
>
> On Tue, Dec 8, 2015 at 12:41 AM, Clemens DICKHUT <clemens.dickhut at uni.lu>
> wrote:
>
>>
>>
>>
>>
>> Dear EEG experts,
>>
>>
>> I am using a 64 channel acticap system. Two additional electrodes placed
>> on Az and FCz serve as ground and reference, respectively. I am recording
>> the data with BrainVision recorder. Ref and ground are not in the
>> workspace.
>>
>> When I load the bv file into EEGLAB, consequently only 64 channels are
>> available, Az and FCz are missing.
>>
>> Do you know of any ways how I could reuse the FCz for subsequent offline
>> re-referencing etc? Perhaps by including it in the workspace beforehand?
>> BrainVisionAnalyzer seems to offer the option of reusing the reference
>> channel.
>>
>> I am very grateful for help.
>>
>> Kind regards,
>> Clemens
>>
>>
>>   P.S.: in case of double post, sorry, but I think my first request did
>> not get through.
>>
>>
>>
>> __________________________________
>> Clemens Dickhut, M.Sc., (PhD Student)
>> Institute for Health and Behaviour
>> Research Unit INSIDE
>> University of Luxembourg - Campus Belval
>> Maison des Sciences Humaines
>> 11, Porte des Sciences, R. 04 415
>> L-4366 Esch-sur-Alzette
>> Tel.: (+352) 46 66 44 9536
>>
>>
>>
>>
>>
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>
>
>
> --
> Makoto Miyakoshi
> Swartz Center for Computational Neuroscience
> Institute for Neural Computation, University of California San Diego
>
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-- 
Berry van den Berg
email: berryv.dberg at gmail.com
website: berryvdberg.org
mobile: +31612585275
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