Thanks Christian!
Ok, that makes sense. Somehow I had imagined smoothing would have the opposite effect by decreasing noise sources...
On to my next worry: From what I've seen people generally get many fewer components, also with spatially smoothed data. My dataset is pretty standard, although the stimuli are very complex (movies). Does anyone have any ideas about why I get so many more components than other people? I'm worried I've made some mistake. Or doesn't this happen sometimes and it's just that I haven't heard of it in the literature? I'm pretty new to this method.
Many thanks!
Kajsa
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