Results 21 to 30 of about 405,922 (154)

Visual pathways involvement in multiple sclerosis from pathological process to neuro-ophthalmologic assessment [PDF]

Romanian Journal of Neurology, 2014
Multiple sclerosis (MS) is a demyelinating disease associated with a myriad of visual pathways pathology. These pathologies need to be assessed, even when asymptomatic, because they may represent an important index of disease course, severity and ...
Adriana Bulboaca, Corina Ursu, Ioana Stanescu, Dafin Muresanu, Angelo Bulboaca   +4 more
doaj   +1 more source

Distribution of AMPA-type glutamate receptor subunits in the chick visual system

Brazilian Journal of Medical and Biological Research, 1997
Several glutamate receptor (GluR) subunits have been characterized during the past few years. In the present study, subunit-specific antisera were used to determine the distribution of the AMPA-type glutamate receptor subunits GluR1-4 in retinorecipient ...
R.S. Pires, L.R.G. Britto
doaj   +1 more source

The Effects of the Müller-Lyer Goalkeepers’ Illusion on Perceptions and Location of Throws of Penalty Takers [PDF]

رشد و یادگیری حرکتی ورزشی, 2019
The main aim of the present study was to investigate whether the goalkeepers’ postures that mimic the Müller–Lyer illusion can influence penalty-takers’ perceptions and the location of throws.
Hamid Salehi, Zahra Zareie, Parisa Kalantari   +2 more
doaj   +1 more source

Visual and motor signatures of locomotion dynamically shape a population code for feature detection in Drosophila

eLife, 2022
Natural vision is dynamic: as an animal moves, its visual input changes dramatically. How can the visual system reliably extract local features from an input dominated by self-generated signals?
Maxwell H Turner, Avery Krieger, Michelle M Pang, Thomas R Clandinin   +3 more
doaj   +1 more source

Spatio-temporal Contrast Sensitivity in the Cardinal Directions of the Colour Space. A Review

Journal of Optometry, 2010
We review the psychophysics of the spatio-temporal contrast sensitivity in the cardinal directions of the colour space and their correlation with those neural characteristics of the visual system that limit the ability to perform contrast detection or ...
Maria Amparo Díez-Ajenjo, Pascual Capilla   +1 more
doaj   +1 more source

Autism Pathogenesis: The Superior Colliculus

Frontiers in Neuroscience, 2019
After been exposed to the visual input, in the first year of life, the brain experiences subtle but massive changes apparently crucial for communicative/emotional and social human development. Its lack could be the explanation of the very high prevalence
Rubin Jure
doaj   +1 more source

Automatic Retinal Nerve Fiber Segmentation and the Influence of Intersubject Variability in Ocular Parameters on the Mapping of Retinal Sites to the Pointwise Orientation Angles

Journal of Imaging
The current study investigates the influence of intersubject variability in ocular characteristics on the mapping of visual field (VF) sites to the pointwise directional angles in retinal nerve fiber layer (RNFL) bundle traces.
Diego Luján Villarreal, Adriana Leticia Vera-Tizatl   +1 more
doaj   +1 more source

Causal effect of COVID-19 on optic nerve and visual pathway disorders: genetic evidence of lung-brain axis

Frontiers in Immunology
PurposeTo investigate the potential causal association between COVID-19 exposure and optic nerve and visual pathway disorders through a two-sample bidirectional Mendelian randomization (MR) analysis, and to provide empirical support for the lung-brain ...
Chunge Cao, Qiong Li, Dajun Cai, Chaoyan Yue, Hu Zhao   +4 more
doaj   +1 more source

Neural pathways for visual speech perception

Frontiers in Neuroscience, 2014
This paper examines the questions, what levels of speech can be perceived visually, and how is visual speech represented by the brain? Review of the literature leads to the conclusions that every level of psycholinguistic speech structure (i.e., phonetic
Lynne E Bernstein, Einat eLiebenthal
doaj   +1 more source

Structural Differences Across Multiple Visual Cortical Regions in the Absence of Cone Function in Congenital Achromatopsia

Frontiers in Neuroscience, 2021
Most individuals with congenital achromatopsia (ACHM) carry mutations that affect the retinal phototransduction pathway of cone photoreceptors, fundamental to both high acuity vision and colour perception. As the central fovea is occupied solely by cones,
Rebecca Lowndes, Rebecca Lowndes, Barbara Molz, Barbara Molz, Lucy Warriner, Anne Herbik, Pieter B. de Best, Noa Raz, Andre Gouws, Khazar Ahmadi, Rebecca J. McLean, Irene Gottlob, Susanne Kohl, Lars Choritz, John Maguire, Martin Kanowski, Barbara Käsmann-Kellner, Ilse Wieland, Eyal Banin, Netta Levin, Michael B. Hoffmann, Michael B. Hoffmann, Antony B. Morland, Antony B. Morland, Heidi A. Baseler, Heidi A. Baseler, Heidi A. Baseler   +26 more
doaj   +1 more source