[Eeglablist] How to use laplacian filter by EEGLAB
Ramesh Srinivasan
r.srinivasan at uci.edu
Mon Mar 25 20:02:07 PDT 2013
Hi all -
I would like to toss in one more option - SSLTOOL, which was put
together by Siyi Deng in my lab. It does Laplacians on a sphere using a
3-D spline detailed in papers and Nunez and Srinivasan (2006), but also
can do Laplacians on a realistic 3-D MRI generated mesh using the
methods described in our recent IEEE Transactions on BME paper. I
believe it plays nicely with EEGLAB data formats.
http://ssltool.sourceforge.net/index.html
ramesh
On 03/25/2013 06:35 PM, Yuan-fang Chou wrote:
> Dear Arno and Lin,
>
> Why not use del2map() functions? As I know, it calculates the 2-D
> laplacian transform of the EEG data.
>
> Cheers.
>
>
> 2013/3/20 Arnaud Delorme <arno at ucsd.edu <mailto:arno at ucsd.edu>>
>
> Dear Lin,
>
> I would advise using the Current Source Density Matlab toolbox.
> John J.B. Allen has graciously provided sample scripts
> demonstrating how to use the CSD toolbox with EEGLAB.
>
> http://psychophysiology.cpmc.columbia.edu/software/CSDtoolbox/index.html
>
> Maybe someone could write a plugin?
> Best,
>
> Arno
>
> On 10 Mar 2013, at 17:15, Lin Du wrote:
>
> > Dear List,
> >
> > I would like to use laplacian filter to pre-process the EEG data to
> > enhance the EEG feature of local synchrony. Does anyone know how to
> > use EEGLAB/pulg-ins of EEGLAB to do it?
> >
> > Thanks,
> >
> > Lin
> >
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> --
> Yuan-Fang Chao
> School of Psychology
> SouthWest University
> Beibei,Chongqing,China
>
>
>
>
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