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Keywords: Retina
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Journal Articles
Brain Behav Evol (2017) 89 (2): 84–103.
Published Online: 25 April 2017
...Heidrun Kuhrt; Andreas Bringmann; Wolfgang Härtig; Gudrun Wibbelt; Leo Peichl; Andreas Reichenbach Elephants are precocial mammals that are relatively mature as newborns and mobile shortly after birth. To determine whether the retina of newborn elephants is capable of supporting the mobility...
Journal Articles
Brain Behav Evol (2017) 88 (3-4): 204–212.
Published Online: 08 November 2016
... Cone Gymnotiforms Electric fish Gene loss Electroretinogram Microspectrophotometry Retina Electric eel Eigenmannia The cone opsin repertoire of vertebrates was initially shaped by 2 rounds of genome duplication approximately 500 million years ago, giving rise to 4 cone opsins: short...
Journal Articles
Brain Behav Evol (2016) 88 (1): 59–67.
Published Online: 17 August 2016
... but failed to observe any regular pattern in their distribution. An investigation of laminar organization of the retina in phocids - the harp seal (Pagophilus groenlandicus) [Nagy and Ronald, 1970] and the harbor seal (Phoca vitulina) [Jamieson and Fisher, 1971] - also failed to reveal any areas of high...
Journal Articles
Brain Behav Evol (2015) 85 (4): 217–232.
Published Online: 15 July 2015
.... egisholt@gmail.com 11 02 2014 17 02 2015 15 7 2015 Visual specialization Retina Dasyatidae Ganglion cells Photoreceptors Spatial resolving power Sympatric species Speciation Our current knowledge of the visual ecology of elasmobranchs is derived largely from broad...
Journal Articles
Brain Behav Evol (2014) 84 (3): 197–213.
Published Online: 23 October 2014
..., whereas P. patagoniensis is preferentially terrestrial. The goal of the present study was to compare the density and topography of neurons, photoreceptors, and cells in the ganglion cell layer in the retinas of these two species using immunohistochemistry and Nissl staining procedures and estimate...
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Journal Articles
Brain Behav Evol (2013) 81 (1): 1–11.
Published Online: 26 September 2012
... retina is the large size of ganglion cells and low cell density compared to terrestrial mammals. The ganglion cell diameter ranged from 8 to 100 µm, with the majority of cells within a range of 20–40 µm. The topographic distribution of ganglion cells displayed two spots of high cell density located...
Journal Articles
Brain Behav Evol (2007) 68 (4): 241–254.
Published Online: 22 February 2012
... to mosaic remodeling to determine whether existing cone photoreceptors change phenotype. We also used in situ hybridization to identify mosaic type and opsin expression in transitional retinas to understand the sequence of transformation. Our data indicate that in the winter flounder retina the choice...
Journal Articles
Brain Behav Evol (2010) 76 (2): 144–153.
Published Online: 15 November 2010
... quadrant of the retina and was similar to the area centralis of terrestrial carnivores. It extended nasally, above the optic disk, as a streak of increased cell density. In different whole mounts, the peak cell density in the high-density area ranged from 1,684 to 1,844 cells/mm 2 (mean 1,773 cells/mm 2...
Journal Articles
Brain Behav Evol (2011) 76 (3-4): 248–260.
Published Online: 05 November 2010
...) , the spotted wobbegong (O . maculatus) , the ornate wobbegong (O . ornatus) and the dwarf spotted wobbegong (O . parvimaculatus) . The retinae of all 4 wobbegong species are duplex; rod and cone photoreceptors can be distinguished easily on the basis of morphology. Some variation in relative eye size exists...
Journal Articles
Brain Behav Evol (2010) 75 (3): 186–194.
Published Online: 20 August 2010
... polarized light fields. These studies have employed both innate and conditioned response methodologies. Innate Response Studies Ontogenetic Status of Test Fish and Regional Loss of UVS Cones. Trout and other salmonids exhibit a developmental loss of UVS cones in the ventral and dorsal-nasal retina...
Journal Articles
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Brain Behav Evol (1997) 50 (6): 347–357.
Published Online: 04 June 2010
...-tubular eye, the tubular eye is comprised of a thick main retina, subserving the rostrally or dorsally directed binocular visual field, and a thin accessory retina subserving, the lateral, monocular visual field. The main retina is thought to receive a focussed image, while the accessory retina is too...
Journal Articles
Brain Behav Evol (1993) 42 (2): 88–97.
Published Online: 02 June 2010
...Shaun P. Collin; H. Barry Collin The retina and choriocapillaris of the Florida garfish, Lepisosteus platyrhincus (Ginglymodi), was examined at the light and electron microscopic levels. The inner limiting membrane is covered by an extensive system of vitreal blood vessels emanating from...
Journal Articles
Brain Behav Evol (1990) 36 (5): 322–328.
Published Online: 02 June 2010
.... Myxinoidea Retina Forebrain Visual system Retinofugal connections Retinopetal connections 322 Wicht/Northcutt Fig. S. Photomicrograph of Dil-labeled fibers (arrows) leaving the optic tract and terminating in the area of the contralateral ante­ rior nucleus. This figure corresponds to the area...
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Brain Behav Evol (2009) 74 (2): 102–109.
Published Online: 19 August 2009
...Frederike D. Hanke; Leo Peichl; Guido Dehnhardt Retinal topography in juvenile harbor seals (Phoca vitulina) was analyzed in retinal wholemounts stained with cresyl violet. A region of highest ganglion cell density, i.e., an area centralis, was identified in the temporal retina at a mean distance...
Journal Articles
Brain Behav Evol (1968) 1 (6): 500–518.
Published Online: 03 April 2008
... from any ideas, methods, instructions or products referred to in the content or advertisements. Optic system Optic tectum Retina Feeding behaviour Toad Frog Orienting response Brain Behav. Evol. 1: 500-518 (1968) Optic system Optic tectum Retina Feeding behavior Toad Frog Orienting...