Digital period analysis of sleep EEG in depression.

Journal Article (Journal Article)

The period-analyzed sleep electroencephalogram (EEG) was compared in a group of 9 depressed outpatients and 9 age-matched normal controls. Both groups showed rhythms in beta, delta, and theta activity with an approximately 90-min period. The phase and coherence between fast and slow frequency EEG measures, however, differed significantly in the two groups. Beta and delta rhythms were less coherent in the depressed outpatient sample. The control group showed higher coherence and a strong coupling of beta and delta activity. These preliminary data suggest that depression may be associated with some degree of ultradian rhythm disturbances though periodicity is unaffected.

Full Text

Duke Authors

Cited Authors

  • Armitage, R; Roffwarg, HP; Rush, AJ; Calhoun, JS; Purdy, DG; Giles, DE

Published Date

  • January 1, 1992

Published In

Volume / Issue

  • 31 / 1

Start / End Page

  • 52 - 68

PubMed ID

  • 1543798

International Standard Serial Number (ISSN)

  • 0006-3223

Digital Object Identifier (DOI)

  • 10.1016/0006-3223(92)90006-l


  • eng

Conference Location

  • United States