[Eeglablist] Removing 1/f in spectopo() before plotting topography at select frequencies.

Brian Harvey brian.harvey at biogen.com
Fri Nov 15 11:48:37 PST 2019


Has an option been implemented in spectopo() or similar functions that can correct the PSD's for the underlying 1/f? Often times I am finding that scalp topographies are representing the power by absolute magnitude but not accounting for the signal-to-noise at any particular frequency.

For example, would a channels that has a larger power at 40Hz but no peak at 40Hz be more representative of brain activation vs. a channel that has a distinct peak at 40Hz but the peak power is lower than that of the former?

I appreciate your inpute.

Brian Harvey
Biogen



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