Synchronization between hippocampal theta waves and PGO waves during REM sleep

Akihiro Karashima; Kazuhiro Nakamura; Mika Watanabe; Naoki Sato; Mitsuyuki Nakao; Norihiro Katayama; Mitsuaki Yamamoto

doi:10.1046/j.1440-1819.2001.00820.x

Synchronization between hippocampal theta waves and PGO waves during REM sleep

Akihiro Karashima, Kazuhiro Nakamura, Mika Watanabe, Naoki Sato, Mitsuyuki Nakao, Norihiro Katayama, Mitsuaki Yamamoto

Unprecedented-scale Data Analytics Center (UDAC)

Tohoku University

Research output: Contribution to journal › Article › peer-review

15 Citations (Scopus)

Abstract

We investigated the temporal relationship between hippocampal theta waves (referred to as 'theta waves') and ponto-geniculo-occipital (PGO) waves in cats. 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 unimodal distributions of these intervals suggested a close temporal relationship between PGO and theta waves (i.e. synchronization). In addition, the period 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 synchronization found here is characterized by phase-locking rather than phase-resetting. Common mechanisms are suggested to underlie the generation of PGO and theta waves.

Original language	English
Pages (from-to)	189-190
Number of pages	2
Journal	Psychiatry and Clinical Neurosciences
Volume	55
Issue number	3
DOIs	https://doi.org/10.1046/j.1440-1819.2001.00820.x
Publication status	Published - 2001

Keywords

Cat
Hippocampal theta wave
PGO wave
REM sleep
Synchronization

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

Access to Document

10.1046/j.1440-1819.2001.00820.x

Cite this

@article{34ca81daebd144e7b3f624eeedf999e8,

title = "Synchronization between hippocampal theta waves and PGO waves during REM sleep",

abstract = "We investigated the temporal relationship between hippocampal theta waves (referred to as 'theta waves') and ponto-geniculo-occipital (PGO) waves in cats. 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 unimodal distributions of these intervals suggested a close temporal relationship between PGO and theta waves (i.e. synchronization). In addition, the period 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 synchronization found here is characterized by phase-locking rather than phase-resetting. Common mechanisms are suggested to underlie the generation of PGO and theta waves.",

keywords = "Cat, Hippocampal theta wave, PGO wave, REM sleep, Synchronization",

author = "Akihiro Karashima and Kazuhiro Nakamura and Mika Watanabe and Naoki Sato and Mitsuyuki Nakao and Norihiro Katayama and Mitsuaki Yamamoto",

year = "2001",

doi = "10.1046/j.1440-1819.2001.00820.x",

language = "English",

volume = "55",

pages = "189--190",

journal = "Psychiatry and Clinical Neurosciences",

issn = "1323-1316",

publisher = "Wiley-Blackwell Publishing Ltd",

number = "3",

}

TY - JOUR

T1 - Synchronization between hippocampal theta waves and PGO waves during REM sleep

AU - Karashima, Akihiro

AU - Nakamura, Kazuhiro

AU - Watanabe, Mika

AU - Sato, Naoki

AU - Nakao, Mitsuyuki

AU - Katayama, Norihiro

AU - Yamamoto, Mitsuaki

PY - 2001

Y1 - 2001

N2 - We investigated the temporal relationship between hippocampal theta waves (referred to as 'theta waves') and ponto-geniculo-occipital (PGO) waves in cats. 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 unimodal distributions of these intervals suggested a close temporal relationship between PGO and theta waves (i.e. synchronization). In addition, the period 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 synchronization found here is characterized by phase-locking rather than phase-resetting. Common mechanisms are suggested to underlie the generation of PGO and theta waves.

AB - We investigated the temporal relationship between hippocampal theta waves (referred to as 'theta waves') and ponto-geniculo-occipital (PGO) waves in cats. 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 unimodal distributions of these intervals suggested a close temporal relationship between PGO and theta waves (i.e. synchronization). In addition, the period 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 synchronization found here is characterized by phase-locking rather than phase-resetting. Common mechanisms are suggested to underlie the generation of PGO and theta waves.

KW - Cat

KW - Hippocampal theta wave

KW - PGO wave

KW - REM sleep

KW - Synchronization

UR - http://www.scopus.com/inward/record.url?scp=0034989033&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0034989033&partnerID=8YFLogxK

U2 - 10.1046/j.1440-1819.2001.00820.x

DO - 10.1046/j.1440-1819.2001.00820.x

M3 - Article

C2 - 11422836

AN - SCOPUS:0034989033

SN - 1323-1316

VL - 55

SP - 189

EP - 190

JO - Psychiatry and Clinical Neurosciences

JF - Psychiatry and Clinical Neurosciences

IS - 3

ER -

Synchronization between hippocampal theta waves and PGO waves during REM sleep

Abstract

Keywords

UN SDGs

Access to Document

Other files and links

Fingerprint

Cite this