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When an animal rotates (whether it is an arthropod, a fish, a bird or a human) a drift of the visual panorama occurs over its retina, termed optic flow. The image is stabilized by compensatory behaviours (driven by the movement of the eyes, head or the whole body depending on the animal) collectively termed optomotor responses. The dipteran lobula plate has been consistently linked with optic flow processing and the control of optomotor responses. Crabs have a neuropil similarly located and interconnected in the optic lobes, therefore referred to as a lobula plate too. Here we show that the crabs' lobula plate is required for normal optomotor responses since the response was lost or severely impaired in animals whose lobula plate had been lesioned. The effect was behaviour-specific, since avoidance responses to approaching visual stimuli were not affected. Crabs require simpler optic flow processing than flies (because they move slower and in two-dimensional instead of three-dimensional space), consequently their lobula plates are relatively smaller. Nonetheless, they perform the same essential role in the visual control of behaviour. Our findings add a fundamental piece to the current debate on the evolutionary relationship between the lobula plates of insects and crustaceans.


Documento: Artículo
Título:Matched function of the neuropil processing optic flow in flies and crabs: the lobula plate mediates optomotor responses in Neohelice granulata
Autor:Barnatan, Yair; Tomsic, Daniel; Sztarker, Julieta
Filiación:Departamento de Fisiología, Biología Molecular y Celular, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Buenos Aires, Argentina
Palabras clave:Animals; Brachyura; Diptera; Humans; Neuropil; Optic Flow; Optic Lobe, Nonmammalian; Visual Pathways; Crab; Animal; Physiology; Visual system; Compensatory responses; Lobula complex; Optokinetic nystagmus
Página de inicio:1
Página de fin:35
Título revista:Royal Society Publishing
Título revista abreviado:Proc. R. Soc. B Biol. Sci.


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---------- APA ----------
Barnatan, Yair, Tomsic, Daniel & Sztarker, Julieta (2022) . Matched function of the neuropil processing optic flow in flies and crabs: the lobula plate mediates optomotor responses in Neohelice granulata. Royal Society Publishing, 289(1981), 1-35.
---------- CHICAGO ----------
Barnatan, Yair, Tomsic, Daniel, Sztarker, Julieta. "Matched function of the neuropil processing optic flow in flies and crabs: the lobula plate mediates optomotor responses in Neohelice granulata" . Royal Society Publishing 289, no. 1981 (2022) : 1-35.
---------- MLA ----------
Barnatan, Yair, Tomsic, Daniel, Sztarker, Julieta. "Matched function of the neuropil processing optic flow in flies and crabs: the lobula plate mediates optomotor responses in Neohelice granulata" . Royal Society Publishing, vol. 289, no. 1981, 2022, pp. 1-35.
---------- VANCOUVER ----------
Barnatan, Yair, Tomsic, Daniel, Sztarker, Julieta. Matched function of the neuropil processing optic flow in flies and crabs: the lobula plate mediates optomotor responses in Neohelice granulata. Proc. R. Soc. B Biol. Sci. 2022;289(1981):1-35.