[Eeglablist] Channel locations

Makoto Miyakoshi mmiyakoshi at ucsd.edu
Fri Apr 4 19:52:04 PDT 2014


Dear Arno,

Did you change the EGI electrode template file between EEGLAB 7 and 13?
Looks like Ch81 was in occipital in ver.7 but moved to central in ver.13.

Makoto


2014-04-04 15:54 GMT-07:00 Erika Nyhus <enyhus at bowdoin.edu>:

> Hi Makoto,
>
> Previously I was using EEGLab version 7.1.3.12b and loading the
> GSN_HydroCel_129_short.sfp channel location file.  I then plotted the
> channel locations (see plot attached).  I recently used EEGLab version
> 13.11 that automatically loads channel locations when I import .raw EGI
> files.  I then plotted the channel locations (see ChannelLocations2
> attached).  The two plots are not the same.
>
> Erika
>
> [image: Inline image 7]
>
> [image: Inline image 8]
> On Tue, Apr 1, 2014 at 9:57 PM, Makoto Miyakoshi <mmiyakoshi at ucsd.edu>wrote:
>
>> Dear Erika,
>>
>> Thanks for reporting it. We need to know which versions of EEGLAB you
>> compared. If possible please also tell us more about what difference you
>> found. Thanks.
>>
>> Makoto
>>
>>
>
>> 2014-03-28 12:05 GMT-07:00 Erika Nyhus <enyhus at bowdoin.edu>:
>>
>> In past versions of EEGLab I have loaded channel location files for EGI
>>> HydroCel GSN (GSN_HydroCel_129_short.sfp).  In the new version of EEGLab
>>> when I import a .raw EGI file it automatically loads channel locations.
>>>  But when I plot and compare the channel locations I have from the channel
>>> location file and the automatically loaded channel locations they are not
>>> the same.  Which channel location file is EEGLab using to assign channel
>>> locations automatically?
>>>
>>> --
>>> Erika Nyhus, Ph.D.
>>> Department of Psychology and Program in Neuroscience
>>> 6900 College Station
>>> Bowdoin College
>>> Brunswick, ME 04011
>>>
>>>
>>
>>
>> --
>> Makoto Miyakoshi
>> Swartz Center for Computational Neuroscience
>> Institute for Neural Computation, University of California San Diego
>>
>
>
>
> --
> Erika Nyhus, Ph.D.
> Department of Psychology and Program in Neuroscience
> 6900 College Station
> Bowdoin College
> Brunswick, ME 04011
>
>


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