[Eeglablist] Brain Visions 32-Channel Location File

[berry van den berg]

Hi Nicole,

I think the following should work.
If you are using the international 10-20 system then you can specify the
channel names in Pycorder, I think it will be under configuration >
recording montage and there you can change the names from 1:32 to whatever
channel name this corresponds to see
https://dl.dropboxusercontent.com/u/15137171/Capture.PNG (this
configuration will be saved to a xml file). Subsequently you can add
channel locations in eeglab, which should now automatically find the right
location based on the 10-20 channel names.

Your goal is to have the channel names in the .vhdr file be related to the
10-20 system:

[Channel Infos]
; Each entry: Ch<Channel number>=<Name>,<Reference channel name>,
; <Scaling factor in "Unit">,<Unit>, Future extensions..
; Fields are delimited by commas, some fields might be omitted (empty).
; Commas in channel names are coded as "\1".
Ch1=your channel name,REF,1.0,µV
Ch2=Ch2,REF,1.0,µV
Ch3=Ch3,REF,1.0,µV
Ch4=Ch4,REF,1.0,µV
Ch5=Ch5,REF,1.0,µV

Hope that this helps,

Berry




On 16 January 2015 at 15:07, Varga, Nicole Leigh <nvarga at emory.edu> wrote:

>  Hello,
>
>
>
> I recently began collecting data with the BrainVisions ActiChamp system
> and am running into some difficulty with importing the channel locations
> for our 32-channel standard ActiCap. We did not purchase the Analyzer
> software so EEGlab does not automatically recognize our channel
> coordinates. I apologize if I am repeating a previous request (I am new to
> this listserv), but I was wondering if anyone ran into the same problem and
> has a channel location file that they could share? I looked through the
> archives but did not see one posted.
>
>
>
> Many thanks,
>
> Nicole
>
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