[Eeglablist] epochs of different length + ICA weird results

[Marco Buiatti]

Hi,

My main problem is the following: I have 64 channel EEG recordings with 
trials of different length. Is there any simple way to extract epochs of 
different length?

Second question: I ran ICA on 8 concatenated single trials, each one 
about 8 sec long (I chose a subject for which trial length was almost 
constant), 500 Hz sampling frequency. The weird result is that each main 
component is active in one and only one trial, like as trials were 
independent one from the other. Is this result revealing that I'm doing 
something trivially wrong or should I blame my data?

Thank you in advance for your attention and for the great software that 
you made available to everyone!

Marco

-- 
Marco Buiatti

Neurophysique et Physiologie du Systeme Moteur - CNRS UMR 8119
UFR biomedicale Les Saints-Peres
45 rue des Saints-Peres 75270 Paris cedex 06
Tel: +33(0)142862087
Fax: +33(0)149279062
http://www.neurophys.biomedicale.univ-paris5.fr/~buiatti/