AW: [Eeglablist] newbie chaos

Sarnthein Johannes Johannes.Sarnthein at usz.ch
Tue Aug 30 23:46:08 PDT 2005


Hi Georges,
from the amount of data EEGLAB is well suited. If your RAM cannot handle the the whole dataset at once, you could e.g. read in stretches of data at a time and process them separately. The direct access to the matlab scripts gives you ample possibilities to speed up processing.
As to your project, you will have a hard time calculating valid Lyapunov exponents etc, since EEG is non-stationary. Chaos is good for characterizing lasers or such physical devices.
Best,
Johannes
  

-----Ursprüngliche Nachricht-----
Von: eeglablist-bounces at sccn.ucsd.edu
[mailto:eeglablist-bounces at sccn.ucsd.edu]Im Auftrag von georges Otte
Gesendet: Samstag, 27. August 2005 10:31
An: eeglablist at sccn.ucsd.edu
Betreff: [Eeglablist] newbie


Hello,

I am new to this list and new to EEGlab. I am participating in a project
with huge amount of data to analyse (12 channels- 250 Hz sampling 16 bit
48 hours continuous EEG) where I am asked to evaluate these signals in
function of eventual non deterministic chaos, strange attractors,
Lyapunov exponents etc.. Can EEGLab handle this or would other packages
do a better job (fi Dataplore). Any ideas how to tackle this data flood
?   

Sincerely

Dr. G. Otte
------------------------------------
Neurologpsychiatrie EEG-EMG
Otte Georges
Dr.
georges.otte at pandora.be
Bijlokehof 24
9000 Gent
tel: 09 329 06 62
fax: 09 282 26 72
mobile: 0478 205 202
------------------------------------


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