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Tension in the Two Frontales: Electrode Placement and Artifact in the Recording of Forehead EMG
Author(s) -
Davis Christopher M.,
Brickett Paul,
Stern Robert M.,
Kimball William H.
Publication year - 1978
Publication title -
psychophysiology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.661
H-Index - 156
eISSN - 1469-8986
pISSN - 0048-5772
DOI - 10.1111/j.1469-8986.1978.tb03117.x
Subject(s) - forehead , artifact (error) , frontalis muscle , psychology , facial muscles , anatomy , audiology , communication , neuroscience , medicine
The conventional placement of electrodes for recording forehead, or “frontalis” EMG attenuates forehead potentials by placing one electrode over each frontalis muscle. The placement also precludes exploration of differences in the activity of the two muscles, and is influenced by potentials arising in nearby muscles. An alternative unilateral bipolar lead placement is suggested and demonstrated.