Results 31 to 40 of about 743,347 (268)
Characterization of Dysfunctional Lens Index and Opacity Grade in a Healthy Population
Diagnostics, 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 perception of collinearity [PDF]
Perception & Psychophysics, 2002 In a metrical space, there exists an intimate relation between collinearity and parallelity. In particular, in a Riemannian space collinearity is just a special case of parallelity. Is this true for visual space as well? We investigated the visual perception of collinearity by having subjects align two bars in the horizontal plane at eye height.
Cuijpers, R.H. +2 more
openaire +5 more sources
Semantic Expectation Effects on Object Detection: Using Figure Assignment to Elucidate Mechanisms
Vision, 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]
International 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
VisionOur 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
Perisaccadic visual perception
Journal of Vision, 2017 Primates use frequent, rapid eye movements to sample their visual environment. This is a fruitful strategy to make the best use of the highly sensitive foveal part of the retina, but it requires neural mechanisms to bind the rapidly changing visual input into a single, stable percept. Studies investigating these neural mechanisms have typically assumed
Klingenhoefer, Steffen, Krekelberg, Bart
openaire +2 more sources
Visual Inspection System for Uncoupling Status of Control-Rod Drive Rod in Nuclear Reactor
Sensors, 2022 Under some unexpected conditions, drive rods and control-rod assemblies may not be disconnected. If this situation is not detected, the control rod will be lifted out of the reactor core together with the upper reactor internals.
Zhi Li +7 more
doaj +1 more source
WIREs Cognitive Science, 2010 AbstractPerception processes can be investigated at the physical (concerning the stimulation from the environment to the receptors), physiological (the processes taking place in the neural system), and psychological (the ‘sense’ of perception, the outcome produced by the physical stimulation and the physiological processes) level.
E. Mascalzoni, REGOLIN, LUCIA
openaire +3 more sources
Journal of Ophthalmology, 2017 Purpose. To evaluate the intrasession repeatability of corneal curvature, eccentricity, and aberrometric measurements obtained with a multidiagnostic device in healthy eyes. Methods.
David P. Piñero +5 more
doaj +1 more source
Pediatric Blood &Cancer, EarlyView.ABSTRACT Background Adult survivors of childhood acute lymphoblastic leukemia (ALL) are at risk of reduced exercise capacity, decreased physical activity levels, persistent fatigue, and neurocognitive deficits. The aim was to investigate exercise capacity and physical activity levels of adult survivors of childhood ALL and their associations with ...
Laura Jess +5 more
wiley +1 more source