Kemppainen, J., Scales, B., Razban Haghighi, K. et al. (20 more authors) (Submitted: 2021) Binocular mirror-symmetric microsaccadic sampling enables Drosophila hyperacute 3D-vision. bioRxiv. (Submitted)
Abstract
Neural mechanisms behind stereopsis, which requires simultaneous disparity inputs from two eyes, have remained mysterious. Here we show how ultrafast mirror-symmetric photomechanical contractions in the frontal forward-facing left and right eye photoreceptors give Drosophila super-resolution 3D-vision. By interlinking multiscale in vivo assays with multiscale simulations, we reveal how these photoreceptor microsaccades - by verging, diverging and narrowing the eyes’ overlapping receptive fields - channel depth information, as phasic binocular image motion disparity signals in time. We further show how peripherally, outside stereopsis, microsaccadic sampling tracks a flying fly’s optic flow field to better resolve the world in motion. These results change our understanding of how insect compound eyes work and suggest a general dynamic stereo-information sampling strategy for animals, robots and sensors.
Metadata
Authors/Creators: |
|
||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|
Copyright, Publisher and Additional Information: | © 2021 The Authors. Preprint made available under a CC-BY-NC-ND 4.0 International license (http://creativecommons.org/licenses/by-nc-nd/4.0/). | ||||||||||
Keywords: | Compound eyes; Stereo vision; Active sampling; Adaptive optics | ||||||||||
Dates: |
|
||||||||||
Institution: | The University of Sheffield | ||||||||||
Academic Units: | The University of Sheffield > Faculty of Science (Sheffield) > School of Biosciences (Sheffield) > Department of Biomedical Science (Sheffield) | ||||||||||
Funding Information: |
|
||||||||||
Depositing User: | Symplectic Sheffield | ||||||||||
Date Deposited: | 21 Jan 2022 08:24 | ||||||||||
Last Modified: | 21 Jan 2022 08:24 | ||||||||||
Status: | Submitted | ||||||||||
Publisher: | Cold Spring Harbor Laboratory | ||||||||||
Identification Number: | https://doi.org/10.1101/2021.05.03.442473 |
Downloads
Filename: 2021.05.03.442473v3.full.pdf
Licence: CC-BY-NC-ND 4.0
Filename: Kemppainen et al PNAS (main + SI).pdf