Suppression of motion vision during course-changing, but not course-stabilizing, navigational turnsopen access
- Authors
- Fenk, Lisa M.; Kim, Anmo J.; Maimon, Gaby
- Issue Date
- Oct-2021
- Publisher
- CELL PRESS
- Keywords
- corollary discharge; Drosophila; efference copy; gaze stability; insect flight; looming; navigation; patch clamp; saccades; spontaneous behavior
- Citation
- CURRENT BIOLOGY, v.31, no.20, pp.4608 - 4619.e3
- Indexed
- SCIE
SCOPUS
- Journal Title
- CURRENT BIOLOGY
- Volume
- 31
- Number
- 20
- Start Page
- 4608
- End Page
- 4619.e3
- URI
- https://scholarworks.bwise.kr/hanyang/handle/2021.sw.hanyang/140798
- DOI
- 10.1016/j.cub.2021.09.068
- ISSN
- 0960-9822
- Abstract
- From mammals to insects, locomotion has been shown to strongly modulate visual-system physiology. Does the manner in which a locomotor act is initiated change the modulation observed? We performed patchclamp recordings from motion-sensitive visual neurons in tethered, flying Drosophila. We observed motorrelated signals in flies performing flight turns in rapid response to looming discs and also during spontaneous turns, but motor-related signals were weak or non-existent in the context of turns made in response to brief pulses of unidirectional visual motion (i.e., optomotor responses). Thus, the act of a locomotor turn is variably associated with modulation of visual processing. These results can be understood via the following principle: suppress visual responses during course-changing, but not course-stabilizing, navigational turns. This principle is likely to apply broadly-even to mammals-whenever visual cells whose activity helps to stabilize a locomotor trajectory or the visual gaze angle are targeted for motor modulation.
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