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2021: Filtering Physiological Signal in Infants and Adults

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Jessica Kosie
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It's been mentioned on a few days that it's not necessary to filter physiological signals in infant data because their skull is thinner. However, I was wondering if there is a recommendation for working with both infant and adult data (e.g., comparing responses or looking at neural synchrony). Would you recommend filtering the adult's data but not the infant's? Could that be problematic?

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David Boas
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That is what I would do. I don't see any problems with doing it that way. The bigger problems is that the head sizes are very different and your channels would be probing very different anatomical structures. This would cause the biggest issue in comparing the results between infants and adults, it seems to me.

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