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Nonsynaptic Transmission Mediates Light Context-Dependent Odor Responses in Drosophila melanogaster

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Title: Nonsynaptic Transmission Mediates Light Context-Dependent Odor Responses in Drosophila melanogaster
Authors: Ikeda, Kazuaki Browse this author
Kataoka, Masaki Browse this author
Tanaka, Nobuaki K. Browse this author
Keywords: electric field
field potential
multimodal sensory integration
Issue Date: 16-Nov-2022
Publisher: Society for Neuroscience
Journal Title: Journal of neuroscience
Volume: 42
Issue: 46
Start Page: 8621
End Page: 8628
Publisher DOI: 10.1523/JNEUROSCI.1106-22.2022
Abstract: Recent connectome analyses of the entire synaptic circuit in the nervous system have provided tremendous insights into how neural processing occurs through the synaptic relay of neural information. Conversely, the extent to which ephaptic transmission which does not depend on the synapses contributes to the relay of neural information, especially beyond a distance between adjacent neurons and to neural processing remains unclear. We show that ephaptic transmission mediated by extracellular potential changes in female Drosophila melanogaster can reach .200 mm, equivalent to the depth of its brain. Furthermore, ephaptic transmission driven by retinal photoreceptor cells mediates light-evoked firing rate increases in olfactory sensory neurons. These results indicate that ephaptic transmission contributes to sensory responses that can change momentarily in a context-dependent manner.
Type: article
Appears in Collections:理学院・理学研究院 (Graduate School of Science / Faculty of Science) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)

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