A recording of electrical activity from the muscular system; in sleep
recording, synonymous with resting muscle activity or potential. The chin EMG,
along with EEG and EOG,
is one of the three basic variables used to score sleep stages
and waking. Sleep recording in humans typically uses surface electrodes to measure
activity from the submental muscles. These reflect maximally the changes in resting
activity of axial body muscles. The submental muscle EMG is tonically inhibited
during REM sleep.*
Books and Other
Media:
Follow the hypertext link to purchase items. |
 |
*Reprinted with permission from: Culebras, Antonio Clinical Handbook
of Sleep Disorders Hardcover © 1996 Butterworth-Heinemann
| 
