Cuttlefish use stereopsis to strike at prey
| Autor: | Rachael C. Feord, Paloma T. Gonzalez-Bellido, L. Kalra, Trevor J. Wardill, S. Pusdekar, M. E. Sumner |
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| Přispěvatelé: | Feord, RC [0000-0001-7801-8137], Sumner, ME [0000-0001-8759-1031], Gonzalez-Bellido, PT [0000-0003-2201-991X], Wardill, Trevor J [0000-0002-2049-113X], Apollo - University of Cambridge Repository |
| Rok vydání: | 2020 |
| Předmět: |
Cuttlefish
Eye Movements media_common.quotation_subject Biology Predation 03 medical and health sciences 0302 clinical medicine Imaging Three-Dimensional Convergent evolution Perception Animals Anaglyph 3D Research Articles 030304 developmental biology media_common 0303 health sciences Depth Perception Vision Binocular Multidisciplinary Decapodiformes SciAdv r-articles biology.organism_classification Cephalopod Stereopsis Visual information processing Predatory Behavior Neuroscience 030217 neurology & neurosurgery Research Article |
| Zdroj: | Science Advances |
| DOI: | 10.17863/cam.49328 |
| Popis: | Cuttlefish use image disparity between the two eyes to extract depth information when hunting. The camera-type eyes of vertebrates and cephalopods exhibit remarkable convergence, but it is currently unknown whether the mechanisms for visual information processing in these brains, which exhibit wildly disparate architecture, are also shared. To investigate stereopsis in a cephalopod species, we affixed “anaglyph” glasses to cuttlefish and used a three-dimensional perception paradigm. We show that (i) cuttlefish have also evolved stereopsis (i.e., the ability to extract depth information from the disparity between left and right visual fields); (ii) when stereopsis information is intact, the time and distance covered before striking at a target are shorter; (iii) stereopsis in cuttlefish works differently to vertebrates, as cuttlefish can extract stereopsis cues from anticorrelated stimuli. These findings demonstrate that although there is convergent evolution in depth computation, cuttlefish stereopsis is likely afforded by a different algorithm than in humans, and not just a different implementation. |
| Databáze: | OpenAIRE |
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