نتایج جستجو برای: fixation disparity

تعداد نتایج: 68260  

Journal: :Optometry and vision science : official publication of the American Academy of Optometry 2008
Bai-chuan Jiang Steve Bussa Yin C Tea Kenneth Seger

PURPOSE The purpose of this study was to determine the optimal power value of near addition lenses, which would create the least error in accommodative and vergence responses. METHODS We evaluated accommodative response, phoria, and fixation disparity when the subject viewed through various addition lenses at three working distances for 30 young adults (11 emmetropic, 17 myopic, and 2 hyperop...

Journal: :Journal of neurophysiology 1987
D J Felleman D C Van Essen

Receptive field properties of 147 neurons histologically verified to be located in area V3 were investigated during semichronic recording from paralyzed anesthetized macaque monkeys. Quantitative analyses were made of neuron selectivities for direction, orientation, speed, binocular disparity, and color. The majority of neurons in V3 (76%) were strongly orientation selective; 40% demonstrated s...

A Ghavamzadeh , F Shakerpour , GR Babaee , KA Moghadam , M Shaiegan , S Mohammadi , S Samiei ,

Background: It is suggested that HA-1 mismatching among hematopoietic stem cell transplanted recipients-donors is associated with acute graft-versus-host disease (aGVHD). So the aim of this study was to evaluate HA-1 frequency and examine the correlation between HA-1 disparity and GVHD patients who received transplantation from a HLA-identical sibling. Samples and Methods: the DNA was extracted...

Journal: :medical journal of islamic republic of iran 0
ali ahmadi department of epidemiology and biostatistics, school of public health, shahrekord university of medical sciences, shahrekord, iran.سازمان اصلی تایید شده: دانشگاه علوم پزشکی شهرکرد (shahr kord university of medical sciences) seyed saeed hashemi nazari department of epidemiology, shaheedbeheshti university of medical sciences, tehran, iran.سازمان اصلی تایید شده: دانشگاه علوم پزشکی شهید بهشتی (shahid beheshti university of medical sciences) mahmoud mobasheri department of epidemiology and biostatistics, shahrekord university of medical sciences, shahrekord, iran.سازمان اصلی تایید شده: دانشگاه علوم پزشکی شهرکرد (shahr kord university of medical sciences)

background:the present study compared the differences between survivals of patients with colorectal cancer according to their ethnicity adjusted for other predictors of survival. methods: in this prospective cohort study patients were followed up from definite diagnosis of colorectal cancer to death. totally, 2431 person-year follow-ups were undertaken for 1127 colorectal cancer patients once e...

KEIKHOSROW FIROOZBAKHSH, MOHEB S. MONEIM,

This study compares the functional capabilities of different metacarpal fixation constructs under physiological loadings in an attempt to identify the optimal construct rather than the strongest one. One hundred and twenty-six preserved human metacarpals were mechanically tested after oblique osteotomies and internal fixation. Maximum load to failure, average structural rigidity, and energ...

Journal: :iranian journal of blood and cancer 0
s mohammadi m shaiegan ka moghadam gr babaee s samiei a ghavamzadeh

background: it is suggested that ha-1 mismatching among hematopoietic stem cell transplanted recipients-donors is associated with acute graft-versus-host disease (agvhd). so the aim of this study was to evaluate ha-1 frequency and examine the correlation between ha-1 disparity and gvhd patients who received transplantation from a hla-identical sibling. samples and methods: the dna was extracted...

2013
Sébastien Miellet Luca Vizioli Lingnan He Xinyue Zhou Roberto Caldara

Face recognition is not rooted in a universal eye movement information-gathering strategy. Western observers favor a local facial feature sampling strategy, whereas Eastern observers prefer sampling face information from a global, central fixation strategy. Yet, the precise qualitative (the diagnostic) and quantitative (the amount) information underlying these cultural perceptual biases in face...

Journal: :Asia-Pacific Journal of Oncology Nursing 2016

Journal: :Optometry and vision science : official publication of the American Academy of Optometry 2009
Anna M Horwood Patricia M Riddell

PURPOSE Accommodation can mask hyperopia and reduce the accuracy of non-cycloplegic refraction. It is, therefore, important to minimize accommodation to obtain a measure of hyperopia as accurate as possible. To characterize the parameters required to measure the maximally hyperopic error using photorefraction, we used different target types and distances to determine which target was most likel...

Journal: :Displays 2010
Frank Kooi Daan Dekker Raymond van Ee Anne-Marie Brouwer

Background: About 30% of the population has difficulties detecting the sign and the magnitude of binocular disparity in the absence of eye movements, a phenomenon called stereo-anomaly. The stereo-anomaly tests so far are based on disparity only (e.g. red–green stereograms), which means that other depth cues cannot be used and even provide conflicting depth information. Objective: Here we inves...

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