[Eeglablist] Dipole localization and ICA

[Iman M.Rezazadeh]

Hi everyone,

I have  two questions re dipole localization:

 

1-      As far as I know, EEGLAB uses ICA components for source localization
and they claim that each ICA component corresponds to a (or a pair of)
dipole? So, if you choose N ICA components, is  each of them fit separately
? in other words, for source localization, does the EEGLAB algorithm
consider all the selected components at a same time and do localization for
all of them - if the presence of one component affects of the location of
the dipole which corresponds to the other component- ? if yes, so, how can
we say one dipole is associated with one ICA component?

2-      Is there any study on the fact that how many dipoles should be
chosen from N-Channel EEG/MEG recording?

Best,

Iman

 

Iman M.Rezazadeh, PhD

Postdoctoral Research Fellow

Center for Mind and Brain

University of California, Davis

irezazadeh at ucdavis.edu

Cell:310-490-1808

Skype: Imanmr

 

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