After detecting other artifacts, only one event was detected in 40-240Hz catagory. Amazingly, this event takes up all the recording (start from the beginning to the end). Does this mean that the whole segment of my data are contaminated by artifacts from 40-240Hz? As the data have been filtered by bandpass 1-30Hz, there should be no artifactes from 40-240Hz. Could you please explain does this event mean?
Many thanks!
