[Eeglablist] How can I make a Current Density Maps of my data?

[Arnaud Delorme]

>Is it possible to use a Current Density Maps by means
>of the discrete laplacians of an EEG distribution?
>  
>
Do you mean "compute the current density map of ERP data (at one 
specific channel and latency) by computing the average of discrete 
laplacian applied to unaveraged single-trial EEG data (at the same 
specific channel and latency)".

Since the laplacian function is linear, it is the same as directly 
computing the laplacian of the ERP at one specific channel and latency 
(see my previous email on this subject this week using the function 
del2map).

Best

Arno

-- 

*Arnaud Delorme, Ph.D.*
Computational Neurobiology Lab, Salk Institute
10010 North Torrey Pines Road
La Jolla, CA 92037 USA

*Tel* : /(+1)-858-458-1927 ext 15/
*Fax* : /(+1)-858-458-1847/
*Web page *: www.sccn.ucsd.edu/~arno <http://www.sccn.ucsd.edu/%7Earno>
*To think upon*:

    I much prefer the sharpest criticism of a single intelligent man to
    the thoughtless approval of the masses.

        /Johann Kepler/  

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