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

16 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)

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10.1046/j.1440-1819.2001.00820.x

Cite this

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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.",

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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

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KW - PGO wave

KW - REM sleep

KW - Synchronization

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Synchronization between hippocampal theta waves and PGO waves during REM sleep

Abstract

Keywords

UN SDGs

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