Results 31 to 40 of about 1,638,360 (322)

Sex-related differences in chromatic sensitivity [PDF]

open access: yes, 2008
Generally women are believed to be more discriminating than men in the use of colour names and this is often taken to imply superior colour vision. However, if both X-chromosome linked colour deficient males (~8%) and females (
J.A. HARLOW   +7 more
core   +1 more source

Relationship between Visual Dysfunction and Retinal Changes in Patients with Multiple Sclerosis. [PDF]

open access: yesPLoS ONE, 2016
To evaluate structural changes in the retina and their correlation with visual dysfunction in patients with multiple sclerosis.Patients with multiple sclerosis (n = 84) and healthy controls (n = 84) underwent structural evaluation of the retinal nerve ...
Maria Satue   +10 more
doaj   +1 more source

Machine Assisted Analysis of Vowel Length Contrasts in Wolof [PDF]

open access: yes, 2017
Growing digital archives and improving algorithms for automatic analysis of text and speech create new research opportunities for fundamental research in phonetics. Such empirical approaches allow statistical evaluation of a much larger set of hypothesis
Besacier, Laurent   +2 more
core   +2 more sources

Dampening Spontaneous Activity Improves the Light Sensitivity and Spatial Acuity of Optogenetic Retinal Prosthetic Responses [PDF]

open access: yes, 2016
Retinitis pigmentosa is a progressive retinal dystrophy that causes irreversible visual impairment and blindness. Retinal prostheses currently represent the only clinically available vision-restoring treatment, but the quality of vision returned remains ...
Barrett, John Martin   +2 more
core   +1 more source

Fearful faces have a sensory advantage in the competition for awareness [PDF]

open access: yes, 2015
Only a subset of visual signals give rise to a conscious percept. Threat signals, such as fearful faces, are particularly salient to human vision.
Adams, W. J., Garner, M., Hedger, N.
core   +2 more sources

Optimal measurement of visual motion across spatial and temporal scales [PDF]

open access: yes, 2014
Sensory systems use limited resources to mediate the perception of a great variety of objects and events. Here a normative framework is presented for exploring how the problem of efficient allocation of resources can be solved in visual perception ...
A Gorban   +47 more
core   +1 more source

Ancient photoreceptor shapes behavioural responses

open access: yeseLife
Experiments on Drosophila show that an evolutionarily conserved photoreceptor that senses light outside of the retina can regulate responses to direct visual cues.
N Sören Häfker
doaj   +1 more source

A biologically inspired computational vision front-end based on a self-organised pseudo-randomly tessellated artificial retina [PDF]

open access: yes, 2005
This paper considers the construction of a biologically inspired front-end for computer vision based on an artificial retina pyramid with a self-organised pseudo-randomly tessellated receptive field tessellation.
Balasuriya, S., Siebert, J.P.
core   +1 more source

Perception of global image contrast involves transparent spatial filtering and the integration and suppression of local contrasts (not RMS contrast) [PDF]

open access: yesRoyal Society Open Science, 2017
When adjusting the contrast setting on a television set, we experience a perceptual change in the global image contrast. But how is that statistic computed?
Tim S. Meese   +2 more
doaj   +1 more source

How Much Pigment Should Flowers Have? Flowers With Moderate Pigmentation Have Highest Color Contrast

open access: yesFrontiers in Ecology and Evolution, 2021
Floral pigments are a core component of flower colors, but how much pigment a flower should have to yield a strong visual signal to pollinators is unknown.
Casper J. van der Kooi
doaj   +1 more source

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