한빛사논문
Hyosun Kim1,4, Hayun Park2,4, Joowon Lee3,4, Anmo J. Kim1,2,3,5,6
1Department of Artificial Intelligence, Hanyang University, Seoul 04763, South Korea
2Department of Electronic Engineering, Hanyang University, Seoul 04763, South Korea
3Department of Biomedical Engineering, Hanyang University, Seoul 04763, South Korea
4These authors contributed equally
5Twitter:
6Lead contact
Corresponding author: Anmo J. Kim
Abstract
Visual systems extract multiple features from a scene using parallel neural circuits. Ultimately, the separate neural signals must come together to coherently influence action. Here, we characterize a circuit in Drosophila that integrates multiple visual features related to imminent threats to drive evasive locomotor turns. We identified, using genetic perturbation methods, a pair of visual projection neurons (LPLC2) and descending neurons (DNp06) that underlie evasive flight turns in response to laterally moving or approaching visual objects. Using two-photon calcium imaging or whole-cell patch clamping, we show that these cells indeed respond to both translating and approaching visual patterns. Furthermore, by measuring visual responses of LPLC2 neurons after genetically silencing presynaptic motion-sensing neurons, we show that their visual properties emerge by integrating multiple visual features across two early visual structures: the lobula and the lobula plate. This study highlights a clear example of how distinct visual signals converge on a single class of visual neurons and then activate premotor neurons to drive action, revealing a concise visuomotor pathway for evasive flight maneuvers in Drosophila.
논문정보
관련 링크
관련분야 연구자보기
소속기관 논문보기
관련분야 논문보기
해당논문 저자보기