Results 171 to 180 of about 42,890 (207)

Correction: A transgenic mice model of retinopathy of cblG‑type inherited disorder of one‑carbon metabolism highlights epigenome‑wide alterations related to cone photoreceptor cells development and retinal metabolism. [PDF]

open access: yesClin Epigenetics
Matmat K   +15 more
europepmc   +1 more source

Photoreceptor topography and cone-specific electroretinograms

Visual Neuroscience, 2004
It is implicit in many cone-specific ERG studies that the amplitude is proportional to the numbers of cones stimulated. The objective of these experiments was to test this idea by comparing ERGs obtained from different areas of the retina with histological data on cone-density distributions.
Murray, I. J.   +4 more
openaire   +3 more sources

Spectral sensitivity of human cone photoreceptors

Nature, 1987
The brain computes visual colour by analysing the relative excitations of three types of retinal cones. Each cone excitation is governed by a spectral sensitivity function which relates the amplitude of the neural response to wavelength at constant light intensity. The spectral sensitivities of human cones are not well characterized.
J L, Schnapf, T W, Kraft, D A, Baylor
openaire   +2 more sources

Tunicamycin-induced degeneration in cone photoreceptors

Visual Neuroscience, 1988
AbstractTunicamycin (TM), an inhibitor of dolichylphosphate-mediated protein glycosylation, was injected intravitreally into the eyes of diurnal rodents with cone-dominated retinas. Injection of 1 μg of the B2isomer led to a progressive degeneration of the photoreceptor outer segments and disruption of the RPE-photoreceptor interface that took place ...
D H, Anderson   +4 more
openaire   +2 more sources

Cone Photoreceptors, Color Specificities

1988
Cone photoreceptors (cones) in the vertebrate retina mediate color vision. Cones are composed of four parts; an outer Segment, an inner segment, a cell body, and a synaptic terminal (pedicle) (Fig. 1). The outer segment is made of numerous infoldings of the plasma membrane, which contains a photosensitive substance (visual pigment ...
openaire   +1 more source

Distribution of actin in cone photoreceptor synapses

Histochemistry, 1993
The invaginated photoreceptor terminal harbours a great number of postsynaptic dendrites that contact the photoreceptor terminal at morphologically distinct synapses. In this paper we studied the subcellular distribution of actin in cone photoreceptor synapses of light-adapted goldfish and guppy retinas and its relation to ribbon and spinule synapses ...
F, Schmitz, D, Drenckhahn
openaire   +2 more sources

Functional Imaging of Cone Photoreceptors

2016
Color pervades our visual sensory world, yet our understanding of the neural basis of color perception, starting with the retina and on through the multiple cortical areas that subserve vision, is still incomplete. The L, M, and S cone photoreceptors, being the cellular entry point for trichromatic vision in humans and primates, have been studied in a ...
Lawrence C. Sincich   +4 more
openaire   +1 more source

Thyroid Hormone Signaling and Cone Photoreceptor Viability

2015
Thyroid hormone (TH) signaling regulates cell proliferation, differentiation, and apoptosis. In the retina, TH signaling plays a central role in cone opsin expression. TH signaling inhibits S opsin expression, stimulates M opsin expression, and promotes dorsal-ventral opsin patterning.
Hongwei, Ma, Xi-Qin, Ding
openaire   +2 more sources

Chromatic Patterns of Cone Photoreceptors

Optometry and Vision Science, 1977
The operations of vertebrate visual neurons must eventually be expressed in terms of the spectral classes and spatial distributions of photoreceptors that constitute inputs to those neurons. By using a cytochemical probe that permits visualization of the responses of cone photoreceptors to light stimulation, it has been possible to describe the ...
openaire   +1 more source

Direct measurement of human-cone-photoreceptor alignment

Journal of the Optical Society of America A, 1995
We have developed an imaging reflectometer to measure cone-photoreceptor alignment. One makes measurements by bleaching the cone photopigment and imaging the distribution of light returning from the retina, which is illuminated from a small source imaged in the plane of the eye's pupil.
S A, Burns   +3 more
openaire   +2 more sources

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