External Email - Use Caution Dear mne users, I used an acticap system to collect data. This system has a common reference electrode localized on the FCz location. I would like to retrieve this electrode for further analysis, What I would like to do is as follow: - adding back the reference chann…

External Email - Use Caution I'm not familiar with the processing pipeline, but if you drop us an example file I'll try to see why FCz is dropped.

External Email - Use Caution Ok I will try to find a space for holding a file if I do not manage to solve the issues before, but here is some observations: - the error "RuntimeWarning: The locations of multiple reference channels are ignored (set to zero)" appearing when I use mne.io.add_refere…

External Email - Use Caution please share a file and code snippet so we better understand the issue and we can document it and eventually help people not having this problem again. if you have an issue, it's very likely someone else will have it too. Alex

External Email - Use Caution Ok here is the code for replicating the error: import mne import pandas as pd import numpy as np from mayavi import mlab %matplotlib inline %gui qt # Open EEG file data_path = '/home/sylvain/Desktop/Participant01' raw_fname = data_path + '/Participant01.vhdr' #…

External Email - Use Caution Hi Sylvain! Can you upload your file to your Dropbox or Google Drive and share the link? In general, your approach makes sense to me, but I don't really understand why your Brainamp has an average reference electrode. This doesn't make sense, because an average refere…

External Email - Use Caution Hello Clemens! Well I am saying exactly what you are saying: - data are acquired with FCz as the reference channel on the brainvision system. I want to retrieve FCz; - so I was just about adding back FCz (zeros values), computing the average reference (so the new F…

External Email - Use Caution Dear Sylvain, Clemens, and Alex, regarding the rationale: - Say you recorded from 10 electrodes and referenced against another electrode - You thus have 11 electrodes, one of which contains a "zero" signal (the reference) - If you now apply the average reference, …

External Email - Use Caution External Email - Use Caution Hi Sylvain! Can you upload your file to your Dropbox or Google Drive and share the link? In general, your approach makes sense to me, but I don't really understand why your Brainamp has an average reference electrode. This doesn'…

External Email - Use Caution Hello Stefan, I somewhat get your idea but isn't rank deficiency occurring anyway when one use average reference? Since all electrode are becoming a linear combination of all the other one? I mean I get your point but I am not sure if it is linked to the fact of ad…

Get back a reference channel from acticap

Mailing List Archive (read-only)

system (system) October 16, 2018, 8:12pm 6

External Email - Use Caution

maybe you can adjust this script usign our testing file

https://github.com/mne-tools/mne-python/tree/master/mne/io/brainvision/tests/data

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Get back a reference channel from acticap

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