Results 81 to 90 of about 55,627 (339)

Accommodation and vergence status among the 3rd and 4th graders in a mainstream school in Gauteng*

African Vision and Eye Health, 2012
Aim: The data presented in this paper is obtained from the study on the prevalence of visual deficien-cies in mainstream and learning disabled schools which revealed no difference in the prevalence of visual deficiencies in both schools.
I. T. Metsing, J. T. Ferreira
doaj   +1 more source

Using Deep Learning Conditional Value‐at‐Risk Based Utility Function in Cryptocurrency Portfolio Optimisation

International Journal of Finance &Economics, EarlyView.
ABSTRACT One of the critical risks associated with cryptocurrency assets is the so‐called downside risk, or tail risk. Conditional Value‐at‐Risk (CVaR) is a measure of tail risks that is not normally considered in the construction of a cryptocurrency portfolio.
Xinran Huang, Linzhi Tan, Haozhe Su, Jeremy Eng‐Tuck Cheah   +3 more
wiley   +1 more source

Vergence tracking: a tool to assess oculomotor performance in stereoscopic displays

Journal of Eye Movement Research, 2012
Oculomotor conflict induced between the accommodative and vergence components in stereoscopic displays represents an unnatural viewing condition. There is now some evidence that stereoscopic viewing may induce discomfort and changes in oculomotor ...
Pascaline Neveu, Matthieu Philippe, Anne-Emmanuelle Priot, Philippe Fuchs, Corinne Roumes   +4 more
doaj   +1 more source

Trans‐Fistula Contrast‐Enhanced Ultrasound in Diagnosing a Complex Anal‐Bartholin‐Perineal Fistula of Crohn's Disease: A Case Report

Journal of Clinical Ultrasound, EarlyView.
This case illustrates the potential utility of TF‐CEUS as a valuable adjunct in diagnosing complex fistulae. When MRI demonstrates limited sensitivity in detecting complex fistulae, TF‐CEUS can be chosen as a complementary imaging modality. It allows for real‐time, dynamic monitoring of the fistula branches, providing favorable conditions for early ...
Dilimire Abuliezi, Yuan Luo, Qin Huang, Yin Yang, Hua Zhuang   +4 more
wiley   +1 more source

Comparative Study of Accommodative Function and Binocular Vision in Patients With Primary Angle‐Closure Disease

The Kaohsiung Journal of Medical Sciences, EarlyView.
ABSTRACT The age‐related decline in accommodative function after the age of 50 years corresponds with an increasing incidence of primary angle‐closure disease (PACD); however, the interaction between this decline and PACD remains unexamined. Additionally, refractive error‐accommodation associations in elderly individuals, which are critical for PACD ...
Feng‐Rui Yang, Zhi‐Qiao Liang, Ye Lu, Yao Ma, Kun Lv, Qian Zhang, Hui‐Juan Wu   +6 more
wiley   +1 more source

Ocular Motor Abnormalities in Functional Neurological Disorder: A Video‐Oculography Study

Movement Disorders Clinical Practice, EarlyView.
Abstract Background Functional neurological disorders (FND) can include various sensory, motor or cognitive symptoms. Eye movement recordings, measured through video‐oculography, could serve as biomarkers for characterizing these dysfunctions in FND.
Aude Sangare, Astrid de Liège, Bertrand Gaymard, Sophie Rivaud‐Péchoux, Cécilia Bonnet, Evžen Růžička, Jaromír May, Tereza Serranová, Francine Mesrati, Emmanuel Roze, Marie Vidailhet, Céline Louapre, Lionel Naccache, Béatrice Garcin   +13 more
wiley   +1 more source

Vergence Neurons Identified in the Rostral Superior Colliculus Code Smooth Eye Movements in 3D Space

Journal of Neuroscience, 2013
The rostral superior colliculus (rSC) encodes position errors for multiple types of eye movements, including microsaccades, small saccades, smooth pursuit, and fixation.
Marion R. Van Horn, D. Waitzman, K. Cullen   +2 more
semanticscholar   +1 more source

Convergence Deficits in Myoclonus‐Dystonia Point to Cerebellar Impairment

Movement Disorders Clinical Practice, EarlyView.
Abstract Background Myoclonus‐dystonia (M‐D) is a monogenic movement disorder, with proposed cerebellar dysfunction. Vergence eye movement deficits, characteristics of degenerative cerebellar disease, have not been studied in M‐D. Cerebellar transcranial alternating current stimulation (tACS) is considered a potential therapeutic approach.
Skadi Gerkensmeier, Christina Bolte, Jan‐Ole Radecke, Feline Hamami, Andreas Sprenger, Christoph Helmchen, Robert Chen, Marcus Callister, Talyta Cortez Grippe, Christine Klein, Norbert Brüggemann, Tobias Bäumer, Alexander Münchau, Anne Weissbach   +13 more
wiley   +1 more source

Overexploitation can counteract top‐down control and the paradox of enrichment in simple food chains

Oikos, EarlyView.
Because of its high abundance or its high feeding intensity, a consumer can overexploit its resource by consuming it on a shorter timescale than resource regeneration. While this short‐term overexploitation is widespread in nature, its general implications for biotic control patterns and ecosystem stability are not clear.
Josquin Guerber, Nicolas Loeuille, Isabelle Gounand   +2 more
wiley   +1 more source

EEG cortical potentials preceding vergence and combined saccade???vergence eye movements

NeuroReport, 2002
Previous event-related potential (ERP) studies of eye movements were restricted to saccades, the rapid conjugate movements used to change direction of fixation. Our study explored ERP activity for vergence eye movements used for the adjustment of the angle of the visual axes to the distance of the object.
Kapoula, Z., Evdokimidis, I., Smyrnis, N., Bucci, M.-P., Constantinidis, T.S.   +4 more
openaire   +3 more sources