Results 31 to 40 of about 1,854,548 (307)

Clinical Validation of a New Optical Biometer for Myopia Control in a Healthy Pediatric Population

open access: yesChildren, 2022
To assess the clinical validation of the Myah device in a pediatric population by evaluating the repeatability of biometric evaluations and analyzing its agreement with the Myopia Master system. A total of 51 children (51 eyes) were enrolled.
Elena Martínez-Plaza   +3 more
doaj   +1 more source

No effect of attentional modulation by spatial cueing in a masked numerical priming paradigm using continuous flash suppression (CFS) [PDF]

open access: yesPeerJ, 2023
One notion emerging from studies on unconscious visual processing is that different “blinding techniques” seem to suppress the conscious perception of stimuli at different levels of the neurocognitive architecture.
Juliane Handschack   +3 more
doaj   +2 more sources

Slowed response to peripheral visual stimuli during strenuous exercise [PDF]

open access: yes, 2016
Recently, we proposed that strenuous exercise impairs peripheral visual perception because visual responses to peripheral visual stimuli were slowed during strenuous exercise.
Akira Kiyonaga   +6 more
core   +2 more sources

The hippocampus and visual perception [PDF]

open access: yesFrontiers in Human Neuroscience, 2012
In this review, we will discuss the idea that the hippocampus may be involved in both memory and perception, contrary to theories that posit functional and neuroanatomical segregation of these processes. This suggestion is based on a number of recent neuropsychological and functional neuroimaging studies that have demonstrated that the hippocampus is ...
Andy C. H. Lee   +4 more
openaire   +4 more sources

Characterization of Dysfunctional Lens Index and Opacity Grade in a Healthy Population

open access: yesDiagnostics, 2022
This study enrolled 61 volunteers (102 eyes) classified into subjects < 50 years (group 1) and subjects ≥ 50 years (group 2). Dysfunctional Lens Index (DLI); opacity grade; pupil diameter; and corneal, internal, and ocular higher order aberrations (HOAs)
Elena Martínez-Plaza   +6 more
doaj   +1 more source

Visual adaptation to goal-directed hand actions [PDF]

open access: yes, 2004
Prolonged exposure to visual stimuli, or adaptation, often results in an adaptation “aftereffect” which can profoundly distort our perception of subsequent visual stimuli.
Abelson   +92 more
core   +3 more sources

Semantic Expectation Effects on Object Detection: Using Figure Assignment to Elucidate Mechanisms

open access: yesVision, 2022
Recent evidence suggesting that object detection is improved following valid rather than invalid labels implies that semantics influence object detection. It is not clear, however, whether the results index object detection or feature detection. Further,
Rachel M. Skocypec, Mary A. Peterson
doaj   +1 more source

Characterization of the geometric properties of the sclero-conjunctival structure: a review [PDF]

open access: yesInternational Journal of Ophthalmology, 2020
To revise the peer-reviewed literature on geometric properties of the scleral-conjunctival structure in order to define their clinical relevance and the potential relationship between their changes and myopia development or progression.
Laurent Bataille, David P Piñero
doaj   +1 more source

Contextual modulation of primary visual cortex by auditory signals [PDF]

open access: yes, 2017
Early visual cortex receives non-feedforward input from lateral and top-down connections (Muckli & Petro 2013 Curr. Opin. Neurobiol. 23, 195–201. (doi:10.1016/j.conb.2013.01.020)), including long-range projections from auditory areas.
Muckli, L., Paton, A.T., Petro, L.S.
core   +1 more source

Contrast Sensitivity Comparison of Daily Simultaneous-Vision Center-Near Multifocal Contact Lenses: A Pilot Study

open access: yesVision
Our purpose is to evaluate the binocular contrast sensitivity function (CSF) in a presbyopic population and compare the results obtained with four different simultaneous-vision center-near multifocal contact lens (MCL) designs for distance vision under ...
David P. Piñero   +5 more
doaj   +1 more source

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