Results 21 to 30 of about 265,631 (295)

The Effect of Cone Opsin Mutations on Retinal Structure and the Integrity of the Photoreceptor Mosaic [PDF]

, 2012
Purpose. To evaluate retinal structure and photoreceptor mosaic integrity in subjects with OPN1LW and OPN1MW mutations. Methods. Eleven subjects were recruited, eight of whom have been previously described.
Banin, Eyal, Carroll, Joseph, Connor, Thomas B., Jr., Cooper, Robert F., Dubis, Adam M., Dubra, Alfredo, Fishman, Gerald, Gardner, Jessica C., Genead, Mohamed, Hardcastle, Alison J., Hunt, David M., Michaelides, Michel, Mizrahi-Meissonnier, Liliana, Moore, Anthony T., Neitz, Jay, Neitz, Maureen, Nordgren, Rick, Sharon, Dror, Stepien, Kimberly E., Williams, David R.   +19 more
core   +2 more sources

Visual acuity changes in cone and cone‐rod dystrophies

Ophthalmic and Physiological Optics, 2011
Citation information: Prokofyeva E, Troeger E, Bernd A & Zrenner E. Visual acuity changes in cone and cone‐rod dystrophies. Ophthalmic Physiol Opt 2011. doi: 10.1111/j.1475‐1313.2011.00883.xAbstractPurpose:  The purpose of the study was to evaluate longitudinal visual acuity (VA) changes in cone (CD) and cone‐rod dystrophies (CRD) in order to ...
Prokofyeva, Elena, Troeger, Eric, Bernd, Antje, Zrenner, Eberhart   +3 more
openaire   +4 more sources

Visualizing Light Cones in Schwarzschild Space [PDF]

, 2013
This paper introduces a numerical tool (using MATHLAB) to study light cones in exterior Schwarzschild spacetime. The tool in its present form, is mainly for pedagogical use in general relativity classes to help students understand the causal structure of a curved spacetime such as Schwarzschild.
Elmabrouk, Tarig, Low, Robert J.
openaire   +3 more sources

Resolving single cone inputs to visual receptive fields [PDF]

Nature Neuroscience, 2009
With the current techniques available for mapping receptive fields, it is impossible to resolve the contribution of single cone photoreceptors to the response of central visual neurons. Using adaptive optics to correct for ocular aberrations, we delivered micron-scale spots of light to the receptive field centers of neurons in the macaque lateral ...
Sincich, Lawrence C, Zhang, Yuhua, Tiruveedhula, Pavan, Horton, Jonathan C, Roorda, Austin   +4 more
openaire   +4 more sources

Colour opponency is widespread across the mouse subcortical visual system and differentially targets GABAergic and non-GABAergic neurons

Scientific Reports, 2023
Colour vision plays many important roles in animal behaviour but the brain pathways processing colour remain surprisingly poorly understood, including in the most commonly used laboratory mammal, mice.
R. C. Feord, A. Gomoliszewska, A. Pienaar, J. W. Mouland, T. M. Brown   +4 more
doaj   +1 more source

Assessing the Spatial Relationship Between Fixation and Foveal Specializations [PDF]

, 2016
Increased cone photoreceptor density, an avascular zone (FAZ), and the displacement of inner retinal neurons to form a pit are distinct features of the human fovea.
Carroll, Joseph, Cooper, Robert F., Dubis, Adam M., Dubra, Alfredo, Summerfelt, Phyllis, Wilk, Melissa A.   +5 more
core   +2 more sources

Ligand Binding Mechanisms in Human Cone Visual Pigments [PDF]

Trends in Biochemical Sciences, 2019
Vertebrate vision starts with light absorption by visual pigments in rod and cone photoreceptor cells of the retina. Rhodopsin, in rod cells, responds to dim light, whereas three types of cone opsins (red, green, and blue) function under bright light and mediate color vision.
Srinivasan, Sundaramoorthy, Guixà González, Ramon, Cordomí, Arnau, Garriga Solé, Pere   +3 more
openaire   +4 more sources

The mammalian cone visual cycle promotes rapid M/L-cone pigment regeneration independently of the interphotoreceptor retinoid-binding protein [PDF]

, 2011
Rapid regeneration of the visual pigment following its photoactivation is critical for the function of cone photoreceptors throughout the day. Though the reactions of the visual cycle in the retinal pigment epithelium (RPE) that recycle chromophore for ...
Crouch, Rosalie K, Kefalov, Vladimir J, Kolesnikov, Alexander V, Parker, Ryan O, Tang, Peter H   +4 more
core   +2 more sources

Optical coherence tomography findings in unilateral peripheral cone dysfunction syndrome: a case report

BMC Ophthalmology, 2019
Introduction To report a case of unilateral peripheral cone dysfunction syndrome and evaluate the associated clinicopathological changes using swept-source optical coherence tomography (SS-OCT).
Tetsuya Hasegawa, Soichi Tetsuka, Aya Yamaguchi, Chieko Kobashi, Tomomi Sato, Yoshiaki Tanaka, Akihiro Kakehashi   +6 more
doaj   +1 more source

Variations in photoreceptor throughput to mouse visual cortex and the unique effects on tuning

Scientific Reports, 2021
Visual input to primary visual cortex (V1) depends on highly adaptive filtering in the retina. In turn, isolation of V1 computations requires experimental control of retinal adaptation to infer its spatio-temporal-chromatic output.
I. Rhim, G. Coello-Reyes, I. Nauhaus
doaj   +1 more source