Binocular mirror–symmetric microsaccadic sampling enables Drosophila hyperacute 3D vision
(2022) In Proceedings of the National Academy of Sciences of the United States of America 119(12).- 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 superresolution three-dimensional (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... (More)
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 superresolution three-dimensional (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.
(Less)
- author
- organization
- publishing date
- 2022-03-22
- type
- Contribution to journal
- publication status
- published
- subject
- keywords
- Active sampling, Adaptive optics, Compound eyes, Stereovision
- in
- Proceedings of the National Academy of Sciences of the United States of America
- volume
- 119
- issue
- 12
- article number
- e2109717119
- publisher
- National Academy of Sciences
- external identifiers
-
- pmid:35298337
- scopus:85126701227
- ISSN
- 0027-8424
- DOI
- 10.1073/pnas.2109717119
- language
- English
- LU publication?
- yes
- id
- ecfa146e-4690-46c1-bc44-966861821e77
- date added to LUP
- 2022-06-09 10:17:37
- date last changed
- 2024-09-20 01:16:01
@article{ecfa146e-4690-46c1-bc44-966861821e77, abstract = {{<p>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 superresolution three-dimensional (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.</p>}}, author = {{Kemppainen, Joni and Scales, Ben and Haghighi, Keivan Razban and Takalo, Jouni and Mansour, Neveen and McManus, James and Leko, Gabor and Saari, Paulus and Hurcomb, James and Antohi, Andra and Suuronen, Jussi Petteri and Blanchard, Florence and Hardie, Roger C. and Song, Zhuoyi and Hampton, Mark and Eckermann, Marina and Westermeier, Fabian and Frohn, Jasper and Hoekstra, Hugo and Lee, Chi Hon and Huttula, Marko and Mokso, Rajmund and Juusola, Mikko}}, issn = {{0027-8424}}, keywords = {{Active sampling; Adaptive optics; Compound eyes; Stereovision}}, language = {{eng}}, month = {{03}}, number = {{12}}, publisher = {{National Academy of Sciences}}, series = {{Proceedings of the National Academy of Sciences of the United States of America}}, title = {{Binocular mirror–symmetric microsaccadic sampling enables Drosophila hyperacute 3D vision}}, url = {{http://dx.doi.org/10.1073/pnas.2109717119}}, doi = {{10.1073/pnas.2109717119}}, volume = {{119}}, year = {{2022}}, }