[Eeglablist] Problem with fitting bilateral dipoles (Makoto's Preprocessing Pipeline)

[Mahjabeen Rahman]

Do you have any idea why that may happen?  And how to solve it?

We used a Cognionics Mobile-64 device with 10-10 configuration. I followed your instruction ( BEM DIPFIT and optimizing head center) for channel locations.

- Thanks much,
Mahjabeen

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________________________________
From: eeglablist <eeglablist-bounces at sccn.ucsd.edu> on behalf of Makoto Miyakoshi <mmiyakoshi at ucsd.edu>
Sent: Thursday, March 19, 2020 8:37:25 PM
To: EEGLAB List <eeglablist at sccn.ucsd.edu>
Subject: Re: [Eeglablist] Problem with fitting bilateral dipoles (Makoto's Preprocessing Pipeline)

Dear Mahjabeen,

> "found minimum after non-linear optimization for topography 1 on [-15.55
-16.7314 -71.9782; 15.55 -16.7314 -71.9782]

z == -72 is around nose or mouth. The ICA-derived scalp topography you used
should be wrong.

Makoto


On Thu, Mar 19, 2020 at 5:03 PM Mahjabeen Rahman <
mahjabeen.rahman at knights.ucf.edu> wrote:

>
> Hi everyone,
>
> I am getting the following message when I run fitbilateral dipole plugin.
> Is that something to worry about ? I am following the preprocessing
> pipeline by Makoto.
>
> "found minimum after non-linear optimization for topography 1 on [-15.55
> -16.7314 -71.9782; 15.55 -16.7314 -71.9782]
> the call to "ft_dipolefitting" took 3 seconds
> Fail to look up brain areas
> Done."
>
> The message "Fail to look up brain areas" also appeared when I ran DIPFIT
> (using autofit).
>
> Thanks in advance.
> Mahjabeen Rahman
> PhD Student
> Industrial Engineering & Management Systems
> University of Central Florida
>
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