[Eeglablist] ICA analysis for mu-rhythm detection
Katerina
jeux_d at yahoo.gr
Tue Nov 24 04:44:32 PST 2009
Hi,
i have performed ICA analysis through EEGLAB (Tools -> Run ICA) to data
of three different experiments. All subjects had performed hand or
finger movement. However, after performing ICA and ploting (Tools ->
Component spectra and maps) at 10Hz, the topographic maps didn't show
the correct activation, i.e. activation at the motor cortex of the
contralateral hemisphere. As for the third experiment in particular, the
subject had been repeatedly tapping the finger of the right hand, and
after ICA analysis, the map only showed activation at the occipital lobe.
Is there any explanation for this behavior of the data? Is there any
particular reason why ICA wouldn't work with mu-rhythm detection and
hand movement?
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