[Eeglablist] laplacian filter EGI Hydrocel Geodesic Sensor Net

[Shou, Guofa]

Hi, Caterina,
   You may try CSD tools,
  You can download it here: http://psychophysiology.cpmc.columbia.edu/software/CSDtoolbox/index.html
There might be some montages, or you can somehow generate one. I have used it for EGI 128 channels montage.
Shou
------------------------------
Guofa Shou PhD
Postdoc research associate,
Computational Imaging Laboratory,
University of Oklahoma
3100 Monitor Ave. Suite 280
phone: 405-245-9382




From: eeglablist-bounces at sccn.ucsd.edu [mailto:eeglablist-bounces at sccn.ucsd.edu] On Behalf Of Tarik S Bel-Bahar
Sent: Tuesday, September 03, 2013 9:08 AM
To: caterina.piazza at libero.it
Cc: eeglablist
Subject: Re: [Eeglablist] laplacian filter EGI Hydrocel Geodesic Sensor Net

Hello Caterina,

This would be a useful solution for egi data in eeglab, please let the list know if you have success in this area. Current Hydrocel maps can be found on the egi ftp server, in case that helps.

Best wishes.

Tarik Bel-Bahar, Postdoctoral Fellow
Perception, Performance & Psychophysiology Lab
tarik.777 at duke.edu/<http://tarik.777@duke.edu/> 919 328 9573
Div. of Brain Stimulation and Neurophysiology
Dep. of Psychiatry and Behavioral Sciences
Duke University Medical Center, Duke Clinics
Red Zone, 5th Floor, Rm. 54236
200 Trent Drive, Durham, NC 27710

On Thu, Aug 29, 2013 at 4:57 AM, caterina.piazza at libero.it<mailto:caterina.piazza at libero.it> <caterina.piazza at libero.it<mailto:caterina.piazza at libero.it>> wrote:

Dear all,

I would like to apply laplacian filter to my ERP data acquired by a 64 channels Hydrocel Geodesic Sensor Net. I'm trying to use the Current Source Density Matlab toolbox that works fine with EEGLAB, but I have some problems with the definition of the EEG montage because only scalp locations of a first-generation geodesic sensor net are available.

Do you have any suggestions?
Thank you

Kind regards

Caterina


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