Artículo

Berón de Astrada, M.; Bengochea, M.; Medan, V.; Tomsic, D. "Regionalization in the eye of the grapsid crab Neohelice granulata (=Chasmagnathus granulatus): Variation of resolution and facet diameters" (2012) Journal of Comparative Physiology A: Neuroethology, Sensory, Neural, and Behavioral Physiology. 198(3):173-180
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Abstract:

Crabs have panoramic compound eyes, which can show marked regional specializations of visual acuity. These specializations are thought to be related to the particular features of the animal's ecological environment. Modern knowledge on the neuroanatomy and neurophysiology of the crabs' visual system mainly derives from studies performed in the grapsid crab Neohelice granulata (=Chasmagnathus granulatus). However, the organization of the visual sampling elements across the eye surface of this animal had not yet been addressed. We analyzed the sampling resolution across the eye of Neohelice by measuring the pseudopupil displacement with a goniometer. In addition, we measured the facet sizes in the different regions of the eye. We found that Neohelice possesses an acute band of high vertical resolution around the eye equator and an increase in horizontal sampling resolution and lenses diameter towards the lateral side of the eye. Therefore, the analysis of the optical apparatus indicates that this crab possesses greater visual acuity around the equator and at the lateral side of the eye. These specializations are compared with those found in different species of crabs and are discussed in connection to the particular ecological features of Neohelice's habitat. © 2011 Springer-Verlag.

Registro:

Documento: Artículo
Título:Regionalization in the eye of the grapsid crab Neohelice granulata (=Chasmagnathus granulatus): Variation of resolution and facet diameters
Autor:Berón de Astrada, M.; Bengochea, M.; Medan, V.; Tomsic, D.
Filiación:Lab.de Neurobiología dela Memoria.Depto.Fisiología,Biología Molecular y Celular, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires. IFIBYNE-CONICET, Buenos Aires 1428, Argentina
Depto. FBMC, Facultad de Ciencias Exactas y Naturales, Pabellón 2, Ciudad Universitaria, Buenos Aires 1428, Argentina
Palabras clave:Behaviour; Brachyura; Compound eye; Visual system; Visuotopy; animal; animal behavior; article; Brachyura; compound eye; histology; male; physiology; vision; visual field; Animals; Behavior, Animal; Brachyura; Compound Eye, Arthropod; Male; Vision, Ocular; Visual Fields
Año:2012
Volumen:198
Número:3
Página de inicio:173
Página de fin:180
DOI: http://dx.doi.org/10.1007/s00359-011-0697-7
Título revista:Journal of Comparative Physiology A: Neuroethology, Sensory, Neural, and Behavioral Physiology
Título revista abreviado:J. Comp. Physiol. A Neuroethol. Sens. Neural. Behav. Physiol.
ISSN:03407594
CODEN:JCPAD
Registro:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_03407594_v198_n3_p173_BerondeAstrada

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Citas:

---------- APA ----------
Berón de Astrada, M., Bengochea, M., Medan, V. & Tomsic, D. (2012) . Regionalization in the eye of the grapsid crab Neohelice granulata (=Chasmagnathus granulatus): Variation of resolution and facet diameters. Journal of Comparative Physiology A: Neuroethology, Sensory, Neural, and Behavioral Physiology, 198(3), 173-180.
http://dx.doi.org/10.1007/s00359-011-0697-7
---------- CHICAGO ----------
Berón de Astrada, M., Bengochea, M., Medan, V., Tomsic, D. "Regionalization in the eye of the grapsid crab Neohelice granulata (=Chasmagnathus granulatus): Variation of resolution and facet diameters" . Journal of Comparative Physiology A: Neuroethology, Sensory, Neural, and Behavioral Physiology 198, no. 3 (2012) : 173-180.
http://dx.doi.org/10.1007/s00359-011-0697-7
---------- MLA ----------
Berón de Astrada, M., Bengochea, M., Medan, V., Tomsic, D. "Regionalization in the eye of the grapsid crab Neohelice granulata (=Chasmagnathus granulatus): Variation of resolution and facet diameters" . Journal of Comparative Physiology A: Neuroethology, Sensory, Neural, and Behavioral Physiology, vol. 198, no. 3, 2012, pp. 173-180.
http://dx.doi.org/10.1007/s00359-011-0697-7
---------- VANCOUVER ----------
Berón de Astrada, M., Bengochea, M., Medan, V., Tomsic, D. Regionalization in the eye of the grapsid crab Neohelice granulata (=Chasmagnathus granulatus): Variation of resolution and facet diameters. J. Comp. Physiol. A Neuroethol. Sens. Neural. Behav. Physiol. 2012;198(3):173-180.
http://dx.doi.org/10.1007/s00359-011-0697-7