Suppression of motion vision during course-changing, but not course-stabilizing, navigational turns
| Autor: | Anmo J. Kim, Lisa M. Fenk, Gaby Maimon |
|---|---|
| Rok vydání: | 2021 |
| Předmět: |
Mammals
genetic structures fungi Efference copy Context (language use) Biology Gaze Insect flight General Biochemistry Genetics and Molecular Biology Visual processing Motion Drosophila melanogaster Looming Flight Animal Modulation (music) Visual Perception Trajectory Animals General Agricultural and Biological Sciences Neuroscience Vision Ocular |
| Zdroj: | Current Biology. 31:4608-4619.e3 |
| ISSN: | 0960-9822 |
| DOI: | 10.1016/j.cub.2021.09.068 |
| Popis: | 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 patch-clamp recordings from motion-sensitive visual neurons in tethered, flying Drosophila. We observed motor-related 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. |
| Databáze: | OpenAIRE |
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