Odor responses and spontaneous oscillatory activity in tentacular nerves of the terrestrial slug, Limax marginatus

Iori Ito, Tetsuya Kimura, Etsuro Ito*

*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

We studied the neural oscillatory activity in the peripheral olfactory system of the tentacles in the terrestrial slug, Limax marginatus, by extracellular recording. Recordings from the cut-ends of the inferior tentacular nerves connected to the inferior tentacular ganglia and sensory epithelia showed spontaneous oscillatory activity at frequencies of 0.1-30 Hz. This spontaneous activity was dominated by the 0.6-6 Hz band. Ethanol odor stimulation decreased the amplitude in the 0.6-6 Hz band and increased those in the 6-15 and 15-30 Hz bands. Antagonists of the γ-aminobutyric acid (GABA) receptor, bicuculline and picrotoxin, resulted in suppression of spontaneous activity and modulated the odor response in the 0.6-6 Hz band. Our results indicate the involvement of GABA-mediated oscillatory activity in the tentacular nerves in the olfactory processing in molluscs.

本文言語English
ページ(範囲)145-148
ページ数4
ジャーナルNeuroscience Letters
304
3
DOI
出版ステータスPublished - 2001 5月 25
外部発表はい

ASJC Scopus subject areas

  • 神経科学(全般)

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