Asymmetric distribution of color-opponent response types across mouse visual cortex supports superior color vision in the sky DOI Creative Commons
Katrin Franke, Chenchen Cai, Kayla Ponder

et al.

bioRxiv (Cold Spring Harbor Laboratory), Journal Year: 2023, Volume and Issue: unknown

Published: June 5, 2023

Color is an important visual feature that informs behavior, and the retinal basis for color vision has been studied across various vertebrate species. While many studies have investigated how information processed in brain areas of primate species, we limited understanding it organized beyond retina other including most dichromatic mammals. In this study, systematically characterized represented primary cortex (V1) mice. Using large-scale neuronal recordings a luminance noise stimulus, found more than third neurons mouse V1 are color-opponent their receptive field center, while surround predominantly captures contrast. Furthermore, color-opponency especially pronounced posterior encodes sky, matching statistics natural scenes experienced by unsupervised clustering, demonstrate asymmetry representations can be explained uneven distribution green-On/UV-Off response types upper field. Finally, simple model with scene-inspired parametric stimuli shows may enhance detection “predatory”-like dark UV-objects noisy daylight scenes. The results from study highlight relevance processing system contribute to our hierarchy

Language: Английский

How Flies See Motion DOI Creative Commons
Alexander Borst, Lukas N. Groschner

Annual Review of Neuroscience, Journal Year: 2023, Volume and Issue: 46(1), P. 17 - 37

Published: July 10, 2023

How neurons detect the direction of motion is a prime example neural computation: Motion vision found in visual systems virtually all sighted animals, it important for survival, and requires interesting computations with well-defined linear nonlinear processing steps—yet whole process moderate complexity. The genetic methods available fruit fly Drosophila charting connectome its system have led to rapid progress unprecedented detail our understanding how compute this organism. picture that emerged incorporates not only identity, morphology, synaptic connectivity each neuron involved but also neurotransmitters, receptors, their subcellular localization. Together neurons’ membrane potential responses stimulation, information provides basis biophysically realistic model circuit computes motion.

Language: Английский

Citations

22
A single photoreceptor splits perception and entrainment by cotransmission DOI Creative Commons
Na Xiao,

Xu Shuang,

Zekai Li

et al.

Nature, Journal Year: 2023, Volume and Issue: 623(7987), P. 562 - 570

Published: Oct. 25, 2023

Vision enables both image-forming perception, driven by a contrast-based pathway, and unconscious non-image-forming circadian photoentrainment, an irradiance-based pathway1,2. Although two distinct photoreceptor populations are specialized for each visual task3-6, photoreceptors can additionally contribute to photoentrainment of the clock in different species7-15. However, it is unknown how pathway functionally implement segregation irradiance signals required from contrast image perception. Here we report that Drosophila R8 separates co-transmitting neurotransmitters, histamine acetylcholine. This further established postsynaptically histamine-receptor-expressing unicolumnar retinotopic neurons acetylcholine-receptor-expressing multicolumnar integration neurons. The acetylcholine transmission sustained autocrine negative feedback cotransmitted during light phase light-dark cycles. At behavioural level, elimination impairs R8-driven motion detection respectively. Thus, single type achieve dichotomy perception as early first synapses, revealing simple yet robust mechanism segregate translate sensory features into animal behaviours.

Language: Английский

Citations

21
Insect opsins and evo-devo: what have we learned in 25 years? DOI Open Access
Kyle J. McCulloch, Aide Macias-Muñoz, Adriana D. Briscoe

et al.

Philosophical Transactions of the Royal Society B Biological Sciences, Journal Year: 2022, Volume and Issue: 377(1862)

Published: Sept. 4, 2022

The visual pigments known as opsins are the primary molecular basis for colour vision in animals. Insects among most diverse of animal groups and their systems reflect a variety life histories. study insect fruit fly

Language: Английский

Citations

25
A motion direction detecting model for colored images based on the Hassenstein–Reichardt model DOI Creative Commons

Zhiyu Qiu,

Chenyang Yan, Tianqi Chen

et al.

Machine Vision and Applications, Journal Year: 2025, Volume and Issue: 36(1)

Published: Jan. 1, 2025

Language: Английский

Citations

0
A high-speed, modular display system for diverse neuroscience applications DOI Creative Commons
Matthew Isaacson, Lisa Ferguson, Frank Loesche

et al.

bioRxiv (Cold Spring Harbor Laboratory), Journal Year: 2022, Volume and Issue: unknown

Published: Aug. 3, 2022

Abstract Visual stimulation of animals in the laboratory is a powerful technique for studying sensory control complex behaviors. Since commercial displays are optimized human vision, we established novel display system based on custom-built modular LED panels that provides millisecond refresh, precise synchronization, customizable color combinations, and varied configurations. This simplifies challenging experiments. With variants this display, probed speed limits motion vision examined role behavioral experiments with tethered flying Drosophila . Using 2-photon calcium imaging, comprehensively mapped tuning visual projection neurons across fly’s field view. Finally, using real-time behavior analysis, developed low-latency interactive virtual environments found flies can independently their navigation along two dimensions. uniquely addresses most technical challenges small animal thoroughly documented replicability.

Language: Английский

Citations

6
Asymmetric distribution of color-opponent response types across mouse visual cortex supports superior color vision in the sky DOI Creative Commons
Katrin Franke, Chenchen Cai, Kayla Ponder

et al.

bioRxiv (Cold Spring Harbor Laboratory), Journal Year: 2023, Volume and Issue: unknown

Published: June 5, 2023

Color is an important visual feature that informs behavior, and the retinal basis for color vision has been studied across various vertebrate species. While many studies have investigated how information processed in brain areas of primate species, we limited understanding it organized beyond retina other including most dichromatic mammals. In this study, systematically characterized represented primary cortex (V1) mice. Using large-scale neuronal recordings a luminance noise stimulus, found more than third neurons mouse V1 are color-opponent their receptive field center, while surround predominantly captures contrast. Furthermore, color-opponency especially pronounced posterior encodes sky, matching statistics natural scenes experienced by unsupervised clustering, demonstrate asymmetry representations can be explained uneven distribution green-On/UV-Off response types upper field. Finally, simple model with scene-inspired parametric stimuli shows may enhance detection “predatory”-like dark UV-objects noisy daylight scenes. The results from study highlight relevance processing system contribute to our hierarchy

Language: Английский

Citations

2