Difference between revisions of "Muscle artifact"
From EEGpedia
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Latest revision as of 16:38, 16 May 2017
- Most common artifact
- Frequency 20 to 100 Hz
- High amplitude
- Most common muscles: frontalis and temporalis muscles (eg, tightening of the jaw muscles)
- Muscle artifacts represent motor unit potentials as typically observed on needle electrode examination during electromyogram
- A high frequency filter can reduce this artifact
Muscle artifacts frontotemporal during chewing (source)
