[Mne_analysis] EGI sensor layout

[Emily Ruzich]

Hi Jaakko,

I think we may have resolved this? The updated code is

file = '/Users/delfin/Documents/RPKPILOT/RAW/PILOT002_GONOGO.set'
### read channel names and get raw data
mon = mne.channels.read_montage('GSN-HydroCel-128')
raw = mne.io.read_raw_eeglab(file, preload=True)
raw.set_montage(mon) ## !!
### look at channels
mne.viz.plot_sensors(raw.info, show_names=True)
raw.plot_sensors(show_names=True)
raw.plot_sensors('3d')

Sorry for any confusion! Hopefully we are correct and this is the right layout!

________________________________
From: mne_analysis-bounces at nmr.mgh.harvard.edu [mne_analysis-bounces at nmr.mgh.harvard.edu] on behalf of Jaakko Leppakangas [jaeilepp at gmail.com]
Sent: Tuesday, February 14, 2017 3:14 PM
To: Discussion and support forum for the users of MNE Software
Subject: Re: [Mne_analysis] EGI sensor layout

Hi Emily,

I'm unable to replicate this. Looks like some channels are missing from your plot. Can you copy-paste the commands you run to plot this figure?

-Jaakko

On Tue, Feb 14, 2017 at 2:28 PM, Emily Ruzich <Emily.Ruzich at neuro.gu.se<mailto:Emily.Ruzich at neuro.gu.se>> wrote:
Hello all,

I have a question about the sensor layout map for EGI hydrocel sensor nets.

I have been studying the two figures attached - one is the 128 channel map provided by EGI, the other is the sensor positions determined by using the commands mne.channels.read_montage('GSN-HydroCel-128') and mne.viz.plot_sensors.

While there are similarities, some definite differences exist - notably, 81 has shifted from the occipital midline to close to the vertex. Has this been addressed before? And if so, what is the advice you recommend?

Many thanks!
Emily



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