[Eeglablist] Channel Locations for BioSemi

[Makoto Miyakoshi]

Dear Vincent,

You mean EEGLAB default channel location files for biosemi should have
10-5? I'll discuss it with Arno. Thank you for your feedback.

10-5 is extended version of 10-20 (Oostenveld and Praamstra, 2001).

Makoto


2013/8/13 Vincent LeBlanc <leblvin at gmail.com>

> Hi Makoto,
>
> You can set those channel names in your biosemi config file. That saves a
> lot of time.
> As for me, I'm using 10-20 so I'm not sure of how that translates to 10-5.
> Good luck =)
>
>
> 2013/8/12 Makoto Miyakoshi <mmiyakoshi at ucsd.edu>
>
>> Dear Vincent,
>>
>> > If I set the labels to FP1, FP3 etc. instead of A1, A2, etc., I do get
>> coordinates.
>>
>> Yes, this is what I experienced too. I guess 'pair channels' does not
>> work if you have non 10-5 channel names.
>>
>> So my personal solution for this kind of dataset is that you chose 5
>> closet channels (Fz -> ??, Cz -> ??, Pz->??, T7->??, T8->??) and rename
>> them into 10-5 names. Then warp montage using these renamed channels. This
>> is an ugly solution but it still works and better than nothing.
>>
>> Makoto
>>
>> 2013/8/6 Vincent LeBlanc <leblvin at gmail.com>
>>
>>> Hi Enzo!
>>> If I keep the original labels, it can't find any coordinates. If I set
>>> the labels to FP1, FP3 etc. instead of A1, A2, etc., I do get coordinates.
>>> However, when I plot their location, some of the channels are off the head.
>>> Is that simply an effect of not having a 3D map of their localisation?
>>>
>>>
>>> 2013/8/5 Enzo Brunetti <enzo.brunetti at gmail.com>
>>>
>>>> Hi Vincent,
>>>>
>>>> eeglab's plugin 'dipfit' offers some head montages including some
>>>> Biosemi common layouts. When you use Edit/Channel locations, the displayed
>>>> window offers you to look up the corresponding coordinates for the labels
>>>> present in the .bdf file. Try clicking 'Ok' in this window to see if it
>>>> helps you.
>>>>
>>>> Good luck.
>>>>
>>>>
>>>> El 05-08-2013, a las 13:51, Vincent LeBlanc <leblvin at gmail.com>
>>>> escribió:
>>>>
>>>> Hi to all!
>>>>
>>>> I've been trying to correctly enter the BioSemi coordinates into
>>>> eeglab, to no avail. Using the excel sheet on their website (
>>>> http://www.biosemi.com/download/Cap_coords_all.xls) gives me absurd
>>>> results when plotting the channel positions.
>>>> I'm using the 64 electrodes cap. Does anybody have a clue on where/how
>>>> I could get those coordinates?
>>>>
>>>> Thanks in advance =)
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>>>>
>>>
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>>
>>
>>
>> --
>> Makoto Miyakoshi
>> Swartz Center for Computational Neuroscience
>> Institute for Neural Computation, University of California San Diego
>>
>
>


-- 
Makoto Miyakoshi
Swartz Center for Computational Neuroscience
Institute for Neural Computation, University of California San Diego
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