ArticlePhysiological reports2016
Background visual motion affects responses of an insect motion-sensitive neuron to objects deviating from a collision course.
Article in Physiological reports, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers.
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Who cites it
12 citing papers in PubMed.
- An inhibitory brainstem pathway reduces visual detection during background motion.Nature communications · 2026Article
- Responses of a locust visual interneuron correlate with simple and compound object motion within the vertical plane.The Journal of experimental biology · 2025Article
- Background optic flow modulates responses of multiple descending interneurons to object motion in locusts.PloS one · 2025Article
- A Computationally Efficient Neuronal Model for Collision Detection with Contrast Polarity-Specific Feed-Forward Inhibition.Biomimetics (Basel, Switzerland) · 2024Article
- An Angular Acceleration Based Looming Detector for Moving UAVs.Biomimetics (Basel, Switzerland) · 2024Article
- Robustness of Bio-Inspired Visual Systems for Collision Prediction in Critical Robot Traffic.Frontiers in robotics and AI · 2021Article
- Visual motion sensitivity in descending neurons in the hoverfly.Journal of comparative physiology. A, Neuroethology, sensory, neural, and behavioral physiology · 2020Article
- Article
- Complex object motion represented by context-dependent correlated activity of visual interneurones.Physiological reports · 2017Article
- Interaction of compass sensing and object-motion detection in the locust central complex.Journal of neurophysiology · 2017Article
- A sublethal dose of a neonicotinoid insecticide disrupts visual processing and collision avoidance behaviour in Locusta migratoria.Scientific reports · 2017Article
- Background visual motion affects responses of an insect motion-sensitive neuron to objects deviating from a collision course.Physiological reports · 2016Article
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Authors and funding
3 authors.
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Abstract
Stimulus complexity affects the response of looming sensitive neurons in a variety of animal taxa. The Lobula Giant Movement Detector/Descending Contralateral Movement Detector (LGMD/DCMD) pathway is well-characterized in the locust visual system. It responds to simple objects approaching on a direct collision course (i.e., looming) as well as complex motion defined by changes in stimulus velocity, trajectory, and transitions, all of which are affected by the presence or absence of background visual motion. In this study, we focused on DCMD responses to objects transitioning away from a collision course, which emulates a successful locust avoidance behavior. We presented each of 20 locusts with a sequence of complex three-dimensional visual stimuli in simple, scattered, and progressive flow field backgrounds while simultaneously recording DCMD activity extracellularly. DCMD responses to looming stimuli were generally characteristic irrespective of stimulus background. However, changing background complexity affected, peak firing rates, peak time, and caused changes in peak rise and fall phases. The DCMD response to complex object motion also varied with the azimuthal approach angle and the dynamics of object edge expansion. These data fit with an existing correlational model that relates expansion properties to firing rate modulation during trajectory changes.
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