Results 51 to 60 of about 310,218 (192)

Effect of blue cut glasses on color discrimination and contrast sensitivity in young emmetropes

Khyber Medical University Journal
Objective: To evaluate the effects of blue-cut glasses on visual functions, specifically color discrimination (CD) and contrast sensitivity (CS), in young emmetropes.
Mujeeb Ur Rehman, Asad Ullah, Saad Shehzad, Athar Shah   +3 more
doaj   +1 more source

Evaluation of Contrast Sensitivity, Chromatic Vision, and Reading Ability in Patients with Primary Open Angle Glaucoma

Journal of Ophthalmology, 2016
Purpose. To compare contrast sensitivity, acquired color vision deficiency, and reading ability in patients with glaucoma at different stages of the disease and to establish correlations between visual field parameters and visual function scores. Methods.
Maria P. Bambo, Blanca Ferrandez, Noemi Güerri, Isabel Fuertes, Beatriz Cameo, Vicente Polo, Jose M. Larrosa, Elena Garcia-Martin   +7 more
doaj   +1 more source

Vision Transformer for Contrastive Clustering

Vision Transformer (ViT) has shown its advantages over the convolutional neural network (CNN) with its ability to capture global long-range dependencies for visual representation learning. Besides ViT, contrastive learning is another popular research topic recently. While previous contrastive learning works are mostly based on CNNs, some recent studies
Ling, Hua-Bao, Zhu, Bowen, Huang, Dong, Chen, Ding-Hua, Wang, Chang-Dong, Lai, Jian-Huang   +5 more
openaire   +2 more sources

Visual function and ocular status of children with hearing impairment in Oman: A case series

Indian Journal of Ophthalmology, 2009
Visual functions of children with hearing disability were evaluated in a school of Muscat, Oman in 2006. Two hundred and twenty-three children were tested for near vision, distant vision, contrast sensitivity, color vision, field of vision, motion ...
Khandekar Rajiv, Al Fahdi Mohammed, Al Jabri Bushra, Al Harby Saleh, Abdulamgeed Talat   +4 more
doaj  

The empirical characteristics of human pattern vision defy theoretically-driven expectations.

PLoS Computational Biology, 2018
Contrast is the most fundamental property of images. Consequently, any comprehensive model of biological vision must incorporate this attribute and provide a veritable description of its impact on visual perception.
Peter Neri
doaj   +1 more source

Color and contrast vision in mouse models of aging and Alzheimer's disease using a novel visual-stimuli four-arm maze. [PDF]

Sci Rep, 2021
Vit JP, Fuchs DT, Angel A, Levy A, Lamensdorf I, Black KL, Koronyo Y, Koronyo-Hamaoui M.   +7 more
europepmc   +1 more source

Increased brightness assimilation in rod vision

iScience
Summary: Our visual system uses contextual cues to estimate the brightness of surfaces: brightness can shift toward (assimilation) or away from (contrast) the brightness of the surroundings.
Pablo A. Barrionuevo, Alexander C. Schütz, Karl R. Gegenfurtner   +2 more
doaj   +1 more source

Perceived duration increases with contrast, but only a little.

Frontiers in Psychology, 2016
Recent adaptation studies provide evidence for early visual areas playing a role in duration perception. One explanation for the pronounced duration compression commonly found with adaptation is that it reflects adaptation-driven stimulus-specific ...
Christopher P Benton, Annabelle S Redfern   +1 more
doaj   +1 more source

Developmental Mechanisms Underlying Improved Contrast Thresholds for Discriminations of Orientation Signals Embedded in Noise

Frontiers in Psychology, 2014
We combined an external noise paradigm with an efficient procedure for obtaining contrast thresholds (Lesmes et al., 2006) in order to model developmental changes during childhood.
Seong Taek eJeon, Daphne eMaurer, Terri L. Lewis   +2 more
doaj   +1 more source

Subtle disturbances of vision after optic neuritis elicited by studying contrast sensitivity. [PDF]

, 1979
R.L. Zimmern, F. W. Campbell, I M Wilkinson   +2 more
openalex   +1 more source