[Eeglablist] about runica() function

[Ary Adilson Morales Alvarado]

Dear Friends,
   
    I was going read about Infomax algorithm, I know that runica() function in EEGLAB has implemented an infomax algorithm with the natural gradient of Amari, but I was reading an article about that, and it seems that natural gradient doesn't have implemented.
   
  The article is "Artifact Extraction from EEG Data using Independent Component Analysis"
   
    Shadab Mozaffar
  David W. Petr


   
  But, they show that their learning rules are the same that you use in runica() with natural gradient, but they use an stochastic gradient.
   
  Can you see the pictures attaches please, They show a diferent form to have the same learing rule, but without use natural gradient.
   
  Thanks in advanced
   
  Ary

 		
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