Noninvasive method to objectively measure the spectral sensitivity of individual cone photoreceptors using AO-OCT

2021 ◽  
Author(s):  
Marcel T. Bernucci ◽  
Kazuhiro Kurokawa ◽  
Furu Zhang ◽  
Yan Liu ◽  
James A. Crowell ◽  
...  
Keyword(s):  
Spectral Sensitivity ◽  
Cone Photoreceptors ◽  
Noninvasive Method

scholarly journals Spectral sensitivity of cone photoreceptors and opsin expression in two colour-divergent lineages of the lizard Ctenophorus decresii

2015 ◽  
Vol 218 (10) ◽  
pp. 1556-1563 ◽  
Author(s):  
M. S. Yewers ◽  
C. A. McLean ◽  
A. Moussalli ◽  
D. Stuart-Fox ◽  
A. T. D. Bennett ◽  
...  
Keyword(s):  
Spectral Sensitivity ◽  
Cone Photoreceptors ◽  
Opsin Expression

Spectral sensitivity of cone photoreceptors and opsin expression in two colour-divergent lineages of the lizard Ctenophorus decresii

2015 ◽  
Vol 218 (18) ◽  
pp. 2979-2979 ◽  
Author(s):  
M. S. Yewers ◽  
C. A. McLean ◽  
A. Moussalli ◽  
D. Stuart-Fox ◽  
A. T. D. Bennett ◽  
...  
Keyword(s):  
Spectral Sensitivity ◽  
Cone Photoreceptors ◽  
Opsin Expression

Spectral sensitivity of human cone photoreceptors

Nature ◽  
1987 ◽  
Vol 325 (6103) ◽  
pp. 439-441 ◽  
Author(s):  
J. L. Schnapf ◽  
T. W. Kraft ◽  
D. A. Baylor
Keyword(s):  
Spectral Sensitivity ◽  
Cone Photoreceptors

scholarly journals The Spectral Sensitivity of the Neurons Mediating Black and White

2019 ◽  
Author(s):  
Sara S. Patterson ◽  
Maureen Neitz ◽  
Jay Neitz
Keyword(s):  
Spectral Sensitivity ◽  
Ganglion Cells ◽  
Neural Substrates ◽  
Spectral Tuning ◽  
Cone Photoreceptors ◽  
Black And White

Our percepts of black and white are not equally strong for all monochromatic lights across the spectrum, but instead have a spectral tuning defined by they ways in which their neural substrates process the outputs of three univariant cone photoreceptors. The neurons mediating black and white and how they combine the cone outputs remain controversial but growing evidence indicates cone-opponent midget ganglion cells are involved. The paradoxical implications of having “chromatic” neurons mediate what is traditionally assumed to be a role of “achromatic” neurons remain unresolved. Here, we investigate whether midget ganglion cells can account for the variation in perceived saturation with wavelength.

Mapping absorbance spectra, cone fractions, and neuronal mechanisms to photopic spectral sensitivity in the zebrafish

2002 ◽  
Vol 19 (3) ◽  
pp. 365-372 ◽  
Author(s):  
DAVID A. CAMERON
Keyword(s):  
Spectral Sensitivity ◽  
Visual Pigment ◽  
Second Order ◽  
Visual Sensitivity ◽  
Cone Photoreceptors ◽  
Chromatic Contrast ◽  
Good Correspondence ◽  
First Order ◽  
Neuronal Mechanisms ◽  
Absorbance Spectra

The four spectral cone types in the zebrafish retina each contribute to photopic visual sensitivity as measured by the b-wave of the electroretinogram (ERG). The goal of the current study was to evaluate a model of photopic b-wave spectral sensitivity in the zebrafish that mapped first-order cellular and biophysical aspects of cone photoreceptors (visual pigment absorbance spectra and cone fractions) onto a second-order physiological aspect of cone-derived neural activity in the retina. Good correspondence between the model and photopic ERG data was attained using new visual pigment absorbance data for zebrafish cones (λmax of the L, M, and S cones were 564, 473, and 407 nm, respectively), visual pigment templates, and linearly gained cone fractions. The model inferred four distinct cone processing channels that contribute to the photopic b-wave, two of which are antagonistic combinations of cone-derived signals (L-M and M-S), and two of which are noncombinatorial signals from S and U cones. The nature of the gains and the processing channels suggested general rules of cone-specific inputs to second-order neurons. The model further suggested that the zebrafish retina utilizes neuronal mechanisms for enhancing sensitivity to luminance contrast at short wavelengths and chromatic contrast at middle and long wavelengths. The results indicated that first-order cellular and biophysical aspects of cone photoreceptors can successfully explain physiological aspects of cone-derived neuronal activity in the zebrafish retina.

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