[FieldTrip] A shifting power peak artefact

Ivaylo Iotchev ivaylo.iotchev at gmail.com
Wed Dec 7 14:40:21 CET 2022


Dear community,

I want to rephrase one of my questions without first emphasizing my own
theory of what is going on this time... what could cause the largest peak
in the data to invariantly be at the frequency which is 1/segment length?
That is, the peak is at 2 Hz when the segments are 0.5 seconds long... at 1
Hz when the segment is 1 second long etc. ...

I previously hypothesized that something might be preventing Fieldtrip
from reading the sampling rate out of our data, but feel free to think
outside the box I offer you, much appreciated, thanks in advance!

Bests,

Dr. Ivaylo (Ivo) Iotchev
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