Spike bursting in a dragonfly target-detecting neuron

Abstract Dragonflies visually detect prey and conspecifics, rapidly pursuing these targets via acrobatic flights. Over many decades, studies have investigated the elaborate neuronal circuits proposed to underlie this rapid behaviour. A subset of dragonfly visual neurons exhibit exquisite tuning to s...

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Autores principales:	Joseph M. Fabian, Steven D. Wiederman
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2021
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/3be14a87be2b45a4946d2e063e665f24
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id	oai:doaj.org-article:3be14a87be2b45a4946d2e063e665f24
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spelling	oai:doaj.org-article:3be14a87be2b45a4946d2e063e665f242021-12-02T10:54:06ZSpike bursting in a dragonfly target-detecting neuron10.1038/s41598-021-83559-52045-2322https://doaj.org/article/3be14a87be2b45a4946d2e063e665f242021-02-01T00:00:00Zhttps://doi.org/10.1038/s41598-021-83559-5https://doaj.org/toc/2045-2322Abstract Dragonflies visually detect prey and conspecifics, rapidly pursuing these targets via acrobatic flights. Over many decades, studies have investigated the elaborate neuronal circuits proposed to underlie this rapid behaviour. A subset of dragonfly visual neurons exhibit exquisite tuning to small, moving targets even when presented in cluttered backgrounds. In prior work, these neuronal responses were quantified by computing the rate of spikes fired during an analysis window of interest. However, neuronal systems can utilize a variety of neuronal coding principles to signal information, so a spike train’s information content is not necessarily encapsulated by spike rate alone. One example of this is burst coding, where neurons fire rapid bursts of spikes, followed by a period of inactivity. Here we show that the most studied target-detecting neuron in dragonflies, CSTMD1, responds to moving targets with a series of spike bursts. This spiking activity differs from those in other identified visual neurons in the dragonfly, indicative of different physiological mechanisms underlying CSTMD1’s spike generation. Burst codes present several advantages and disadvantages compared to other coding approaches. We propose functional implications of CSTMD1’s burst coding activity and show that spike bursts enhance the robustness of target-evoked responses.Joseph M. FabianSteven D. WiedermanNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 11, Iss 1, Pp 1-6 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Joseph M. Fabian Steven D. Wiederman Spike bursting in a dragonfly target-detecting neuron
description	Abstract Dragonflies visually detect prey and conspecifics, rapidly pursuing these targets via acrobatic flights. Over many decades, studies have investigated the elaborate neuronal circuits proposed to underlie this rapid behaviour. A subset of dragonfly visual neurons exhibit exquisite tuning to small, moving targets even when presented in cluttered backgrounds. In prior work, these neuronal responses were quantified by computing the rate of spikes fired during an analysis window of interest. However, neuronal systems can utilize a variety of neuronal coding principles to signal information, so a spike train’s information content is not necessarily encapsulated by spike rate alone. One example of this is burst coding, where neurons fire rapid bursts of spikes, followed by a period of inactivity. Here we show that the most studied target-detecting neuron in dragonflies, CSTMD1, responds to moving targets with a series of spike bursts. This spiking activity differs from those in other identified visual neurons in the dragonfly, indicative of different physiological mechanisms underlying CSTMD1’s spike generation. Burst codes present several advantages and disadvantages compared to other coding approaches. We propose functional implications of CSTMD1’s burst coding activity and show that spike bursts enhance the robustness of target-evoked responses.
format	article
author	Joseph M. Fabian Steven D. Wiederman
author_facet	Joseph M. Fabian Steven D. Wiederman
author_sort	Joseph M. Fabian
title	Spike bursting in a dragonfly target-detecting neuron
title_short	Spike bursting in a dragonfly target-detecting neuron
title_full	Spike bursting in a dragonfly target-detecting neuron
title_fullStr	Spike bursting in a dragonfly target-detecting neuron
title_full_unstemmed	Spike bursting in a dragonfly target-detecting neuron
title_sort	spike bursting in a dragonfly target-detecting neuron
publisher	Nature Portfolio
publishDate	2021
url	https://doaj.org/article/3be14a87be2b45a4946d2e063e665f24
work_keys_str_mv	AT josephmfabian spikeburstinginadragonflytargetdetectingneuron AT stevendwiederman spikeburstinginadragonflytargetdetectingneuron
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Spike bursting in a dragonfly target-detecting neuron

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