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- Title
Estimation of generator sources of human sleep spindles by dipole tracing method.
- Authors
Ueda, Kazutaka; Nittono, Hiroshi; Hayashi, Mitsuo; Hori, Tadao
- Abstract
AbstractEquivalent dipole sources of two types of human sleep spindles (14 and 12 Hz) were investigated on five normal subjects. The present study showed that a sleep spindle can be represented by a single equivalent dipole. For both 14 and 12 Hz sleep spindles, the equivalent dipole sources were estimated near the thalamus. The orientation of the equivalent dipole of a 14 Hz sleep spindle was in the centro-parietal direction, while that of a 12 Hz sleep spindle was in the frontal direction. These results suggest that both types of sleep spindle activities are generated in the thalamus, and cortical de-arousal plays a modificatory role on their different topographical distributions.
- Subjects
ELECTROENCEPHALOGRAPHY; DIPOLE moments; SLEEP
- Publication
Psychiatry & Clinical Neurosciences, 2000, Vol 54, Issue 3, p270
- ISSN
1323-1316
- Publication type
Article
- DOI
10.1046/j.1440-1819.2000.00673.x