[Eeglablist] Question about estimating Signal to Noise Ratio

Pål Gunnar Larsson pall at ous-hf.no
Tue Jan 7 22:39:36 PST 2014

What is signal and what is noise depends on your question. E.g. If you test amplifiers the line frequency (50Hz or 60 Hz) may be your signal and the EEG is noise. If you look at a standard EEG recording, the EEG will be the signal and the line frequency is noise. If you looked at evoked responsen, the correlated EEG is the signal and the uncorrelated EEG is part of the noise.


Pål G. Larsson M.D., PhD.
Head of Clinical Neurophysiology
Department of Neurosurgery
Division of Surgery and Clinical Neuroscience

Oslo University Hospital
Po.box 4950 Nydalen
0424 Oslo
Tel:  (+47) 23074407
Mobile: (+47) 93429791
E-mail: pall at ous-hf.no<mailto:pal.gunnar.larsson at ous-hf.no>

Fra: eeglablist-bounces at sccn.ucsd.edu [mailto:eeglablist-bounces at sccn.ucsd.edu] På vegne av chaitanya bhavaraju
Sendt: 23. desember 2013 10:19
Til: eeglablist
Emne: [Eeglablist] Question about estimating Signal to Noise Ratio

Dear List,

I would like to know about the following:
How to estimate the Signal to Noise Ratio for EEG signal?
Can we estimate that for each channel?
Thank you,

Best wishes,
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