Re: [Erppcatoolkit-support] Using PARE correction for EEG data
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jdien
From: Joseph D. <jd...@ma...> - 2015-06-25 00:55:41
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How odd! Could you send me the nose-referenced and averaged-referenced data files so I can look into this? Joe > On Jun 23, 2015, at 08:08, Maria Teresa Wijaya <mtwijaya@u.nus.edu> wrote: > > Dear Joe, > > Thank you for your quick reply. I have actually tried applying the PARE referencing to both nose-referenced and average-referenced data. In the former, it barely made any noticeable difference while in the latter it did change the grand average waveform. I am not sure why it did not work on the nose-referenced data. Is it actually okay to apply PARE referencing to a data set that has already been referenced to the average of the scalp electrodes? > > Thank you. > > Regards, > Maria > > > From: Joseph Dien <jd...@ma...> > Sent: Friday, June 19, 2015 9:27 PM > To: Maria Teresa Wijaya > Cc: erp...@li... > Subject: Re: [Erppcatoolkit-support] Using PARE correction for EEG data > > Thanks! You do not need to re-reference first. The PARE option is just a modified average-reference procedure (referenced to the average of the full interpolated head rather than just the average of the electrode locations). Use the “re-reference” option in the Topomaps view to get a sense of what it is doing. > > Cheers! > > Joe > -------------------------------------------------------------------------------- > > Joseph Dien, PhD > Research Associate > Cognitive Neurology/Neuropsychology > The Johns Hopkins University School of Medicine > > >> On Jun 19, 2015, at 01:18, Maria Teresa Wijaya <mtwijaya@u.nus.edu <mailto:mtwijaya@u.nus.edu>> wrote: >> >> Hello, >> >> First of all, thank you for the amazing EP toolkit. I am currently trying to make use of the PARE correction feature. My data were recorded in Biosemi (64 channels) and have been filtered and re-referenced to nose in EEGLAB. >> >> My question is, do I have to first re-reference my data to average before using the PARE correction? >> >> Thank you and apologize if this question is too basic. >> >> Regards, >> >> Maria >> ------------------------------------------------------------------------------ >> _______________________________________________ >> Erppcatoolkit-support mailing list >> Erp...@li... <mailto:Erp...@li...> >> https://lists.sourceforge.net/lists/listinfo/erppcatoolkit-support <https://lists.sourceforge.net/lists/listinfo/erppcatoolkit-support> -------------------------------------------------------------------------------- Joseph Dien, PhD Research Associate Cognitive Neurology/Neuropsychology The Johns Hopkins University School of Medicine |