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  Aerial course stabilization is impaired in motion-blind flies

Leonte, M.-B., Leonhardt, A., Borst, A., & Mauss, A. S. (2021). Aerial course stabilization is impaired in motion-blind flies. The Journal of Experimental Biology, 224(14): jeb242219. doi:10.1242/jeb.242219.

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Leonte, Maria-Bianca1, Author              
Leonhardt, Aljoscha1, Author              
Borst, Alexander1, Author              
Mauss, Alex S.1, Author              
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1Department: Circuits-Computation-Models / Borst, MPI of Neurobiology, Max Planck Society, ou_1113548              

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Free keywords: OPTIC FLOW; VISUAL CONTROL; BLOWFLY CALLIPHORA; FLIGHT BEHAVIOR; FRUIT-FLY; DROSOPHILA; DISSECTION; KINEMATICS; NAVIGATION; TRACKINGLife Sciences & Biomedicine - Other Topics; Motion vision; Optic flow; Course control; Free flight; Drosophila;
 Abstract: Visual motion detection is among the best understood neuronal computations. As extensively investigated in tethered flies, visual motion signals are assumed to be crucial to detect and counteract involuntary course deviations. During free flight, however, course changes are also signalled by other sensory systems. Therefore, it is as yet unclear to what extent motion vision contributes to course control. To address this question, we genetically rendered flies motion-blind by blocking their primary motion-sensitive neurons and quantified their free-flight performance. We found that such flies have difficulty maintaining a straight flight trajectory, much like unimpaired flies in the dark. By unilateral wing clipping, we generated an asymmetry in propulsive force and tested the ability of flies to compensate for this perturbation. While wild-type flies showed a remarkable level of compensation, motion-blind animals exhibited pronounced circling behaviour. Our results therefore directly confirm that motion vision is necessary to fly straight under realistic conditions.

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Language(s): eng - English
 Dates: 2021
 Publication Status: Published online
 Pages: 8
 Publishing info: -
 Table of Contents: -
 Rev. Type: Peer
 Identifiers: ISI: 000681398200007
DOI: 10.1242/jeb.242219
 Degree: -

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Title: The Journal of Experimental Biology
Source Genre: Journal
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Publ. Info: London : Published for the Company of Biologists Ltd. by the Cambridge University Press
Pages: - Volume / Issue: 224 (14) Sequence Number: jeb242219 Start / End Page: - Identifier: ISSN: 0022-0949
CoNE: https://pure.mpg.de/cone/journals/resource/110992357319088_1