θ oscillation in the anterior cingulate and β-1 oscillation in the medial temporal cortices: A human case report

Sunao Uchida*, Taketoshi Maehara, Nobuhide Hirai, Kensuke Kawai, Hiroyuki Shimizu

*この研究の対応する著者

研究成果: Article査読

15 被引用数 (Scopus)

抄録

In previous studies we observed γ (30-150Hz) and β-1 (10-20 Hz) oscillations in the medial temporal lobe (MTL) using subdural electrodes. The β-1 was present during wake and REM sleep while γ was present in all states. Recently we studied a patient (35 years M) with electrodes attached to the anterior cingulate cortex (ACC). This structure showed regular θ (5-6 Hz) oscillations. In the first recording, electrodes were attached to the MTL, that demonstrated the β-1 and γ oscillations. Two months later, electrodes were placed on orbitofrontal and ACC and an all night sleep recording was carried out. The ACC exhibited a highly regular and continuous θ oscillation during wakefulness and REM sleep, but not during NREM sleep. Since this same subject showed β-1 oscillations in the MTL, it is probable that the θ in the ACC is independent of β-1 in the MTL. This single case suggests the existence of two different frequency oscillators in the human limbic system. Elucidating their functional roles will be an interesting challenge for future studies.

本文言語English
ページ(範囲)371-374
ページ数4
ジャーナルJournal of Clinical Neuroscience
10
3
DOI
出版ステータスPublished - 2003 5
外部発表はい

ASJC Scopus subject areas

  • 臨床神経学
  • 精神医学および精神衛生
  • 神経学

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