橋背外側被蓋野の神経活動と海馬θ波の時間関係

• 辛島 彰洋

  東北大・院・情報科学

• 中尾 光之

  東北大・院・情報科学

• 片山 統裕

  東北大・院・情報科学

• 小山 純正

  福島大・共生システム理工

書誌事項

タイトル別名

• Neuronal activities in the laterodorsal tegmental nucleus are related to the hippocampal theta wave

抄録

Hippocampal theta wave is 3-12 Hz oscillating field potential recorded during particular behavioral activity and rapid eye movement (REM) sleep in cats and rats. The mesopontine reticular formation (MPRF) neurons are known to fire associated with the theta wave, which are called the theta-on/off cell. Possible mechanisms underlying the relationship between the MPRF activities and theta wave remain poorly understood. To clarify this mechanism, neural activities in the laterodorsal tegmental (LDT) nucleus located in the MPRF and the hippocampal theta wave were recorded simultaneously in urethane anaesthetized rats. The results are summarized as follows; i) the LDT neurons were divided into theta-on cells, theta-off cells, and non theta-related cells, ii) some LDT neurons tended to fire at a certain fixed phase of the hippocampal theta wave, i.e. the LDT activity was phase-locked to the hippocampal theta wave, iii) acceleration of the hippocampal theta wave was accompanied by the firing of the LDT neuron. The phase-locking implies the theta-related input to the MPRF neurons. On the other hands, theta acceleration suggests that the MPRF neurons activate theta wave generator. [Jpn J Physiol 55 Suppl:S197 (2005)]

収録刊行物

• 日本生理学会大会発表要旨集

  日本生理学会大会発表要旨集 2005 (0), S197-S197, 2005

  一般社団法人　日本生理学会

キーワード

• theta wave
• hippocampus
• laterodorsal tegmental nucleus
• unit activity

詳細情報

• CRID: 1390282680705970048
• NII論文ID: 130007039146
• DOI: 10.14849/psjproc.2005.0.s197.1
• データソース種別:
  • JaLC
  • CiNii Articles
  • KAKEN
• 抄録ライセンスフラグ: 使用不可