Response Modification of Cricket Sensory Interneurons during Flight(Physiology)

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概要

• 論文の詳細を見る

• Extracellular unit responses of various interneurons were recorded from the subesophageal ganglion and cervical connectives in the cricket (Gryllus bimaculatus), and their responsiveness to sensory stimuli was examined in quiescence and in flight. A total of 41 interaeurons were functionally identified, and they fell into the five main classes : 1) visual interneurons responding exclusively to moving objects or light-on and/or -off, 2) auditory interneurons responding to sound pulses, 3) mechanoreceptive interneurons responding to mechanical stimulation of sensory hairs on the appendages and other bodily parts, 4) multimodal interneurons with two or more sensory inputs whose modalities differ each other, and 5) activity interneurons changing their firing level under the influence of animal's own movement or behavior. About 75 percent of these sensory interneurons showed definitely various types of flight-associated change in the responsiveness to sensory stimuli or "response modification". The simplest type of response modification was that the response to a well-defined stimulus is suppressed or enhanced during flight. We observed the response modification even in the animal assuming the flight posture without actually flapping its wings, or in the animal whose nervous system was deafferentated. Therefore, the response modification is probably operated mainly by the central source originating in the flight motor center rather than by the peripheral or reafferent source.

• 社団法人日本動物学会の論文

著者

• TOMIOKA KENJI

  Environmental Biology Laboratory, Biological Institute, Yamaguchi University

• Yamaguchi Tsuneo

  Department of Biology, Faculty of Science, Okayama University

• Tomioka Kenji

  Environmental Biology Laboratory Biological Institute Faculty Of Science Yamaguchi University

• Tomioka Kenji

  Environmental Biology Laboratory Biological Institute Yamaguchi University

• Yamaguchi Tsuneo

  Department Of Biology Faculty Of Science Okayama University

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• OBITUARY

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