Synchronization between hippocampal theta waves and PGO waves during REM sleep

Citation
A. Karashima et al., Synchronization between hippocampal theta waves and PGO waves during REM sleep, PSY CLIN N, 55(3), 2001, pp. 189-190
Citations number
6
Language
INGLESE
art.tipo
Article
Categorie Soggetti
Clinical Psycology & Psychiatry
Journal title
PSYCHIATRY AND CLINICAL NEUROSCIENCES
ISSN journal
1323-1316 → ACNP
Volume
55
Issue
3
Year of publication
2001
Pages
189 - 190
Database
ISI
SICI code
1323-1316(200106)55:3<189:SBHTWA>2.0.ZU;2-I
Abstract
We investigated the temporal relationship between hippocampal theta waves ( referred to as 'theta waves') and ponto-geniculo-occipital (PGO) waves in c ats. We measured the time intervals between an occurrence of a PGO wave and the prior and posterior adjacent positive peaks of the theta wave. The uni modal distributions of these intervals suggested a close temporal relations hip between PGO and theta waves (i.e. synchronization). In addition, the pe riod of a theta wave during which a PGO wave occurred was not statistically different from that without a PGO wave. This result suggests that the sync hronization found here is characterized by phase-locking rather than phase- resetting. Common mechanisms are suggested to underlie the generation of PG O and theta waves.