[Eeglablist] Working with components

[Ahmad, Jumana]

Dear EEG list,
Using code, I want to work on the component level. I have interpolated X number of electrodes, but reduced the rank of the data with PCA before ICA to total number of electrodes - X.
I now want to perform analysis on the components, but I am wondering how to use the following structs to calculate a matrix of ICA components, and how to link this to topographic information (I know it cannot map to channels anymore).

I am aware of the following fields.
            EEG.icawinv
            EEG.icasphere
            EEG.icaweights
            EEG.icachansind

                          EEG.data with channel level data (some channels interpolated).

Best wishes,
Jumana

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Jumana Ahmad
Post-Doctoral Research Worker in Cognitive Neuroscience
EU-AIMS Longitudinal European Autism Project (LEAP) & SynaG Study
Room M1.09. Department of Forensic and Neurodevelopmental Sciences (PO 23) | Institute of Psychiatry, Psychology & Neuroscience | King's College London | 16 De Crespigny Park | London SE5 8AF

Phone: 0207848 0260| Email: jumana.ahmad at kcl.ac.uk<mailto:antonia.sanjose at kcl.ac.uk> | Website: www.eu-aims.eu<http://www.eu-aims.eu/> | Facebook: www.facebook.com/euaims<http://www.facebook.com/euaims>

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