[Eeglablist] Spatial resolution

[Lars O.D. Christensen]

Hi,

I am trying to understand ICA and its possible applications. It's very
interesting.

One issue of importance for me is what the best spatial resolution one
can obtain is, that is, e.g. in terms of anatomical distances how well
can sources be separated (how close together can the sources be before
they simply overlap/merge, if ever ...) ? A related question would, for
example, be whether it is possible with ICA to separate sensory input to
S1 from its effect on M1 (motor cortex) since these areas are clearly
distinguisable (by the central sulcus) but anyway only separated by a
few centimeters, or maybe only millimeters (at most).

If anybody could tell me something about this, please do.

Best regards,
Lars
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Lars O.D. Christensen (PhD)
University Laboratory of Physiology, 
Parks Road, Oxford OX1 3PT, UK
tel. 0044(0)1865272116
fax  0044(0)1865272469
mail Lars.Christensen at physiol.ox.ac.uk