[Eeglablist] "How can I import data from the Quasar dry electrode headset ?

[Arnaud Delorme]

Dear Alistair,

the simplest way is to manually define your channel labels in the channel editor (menu item "Channel location") after importing your raw data. Simply enter the channel labels ("f3", "fz" etc...). When you are done, then press the button "Look up locs" (still in the channel editor) and it will look up standard 10-20 coordinates for these channels. Note that you must define the same number of channels in the channel editor as the raw data contains otherwise EEGLAB will complain and ignore your newly defined channel locations.
Best,

Arno

On Jun 19, 2012, at 10:49 PM, Alistair Walsh wrote:

> Hi All,
> 
> I have some recordings from The Quasar system using their Qstates recording software. The data has been converted to CSV and i can import it into EEGLAB. I'm wondering how to specify channel locations for a 9 electrode setup with the following locations -
> 
> f3, fz, f4
> c3, cz, c4
> p3, pz, CMF
> 
> The p4 location is used as a reference (common mode follower?) I think.
> I can import a file but not sure about where everything is going. There are a number of extra channels in the data file (time, trigger, offset). Do I remove the time channel and other to just leave the 9 channels of electrode data (with the sample rate giving the time information)?
> 
> I realise this is a very basic question but it is not explained in the tutorial or manual. The links to external sites are also returning an error. 
> 
> Alistair Walsh
> 
> Swinburne University 
> Australia
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