منابع مشابه
Quantitative study of visual after-images.
MUCH has been written on the persistence of visual sensation after the light stimulus has been removed-the so-called visual after-image (Helmholtz, 1924; Duke-Elder, 1932). The after-image may be positive, in which the light and dark parts correspond to those of the object, or negative, in which the light and dark parts are reversed. Similarly, in the positive after-image of a coloured object, ...
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چکیده ندارد.
15 صفحه اولThe effect of incorporating the quantitative analysis besides visual assessments of 18F-FDG brain PET images for the localization of epileptogenic zones
Introduction: FDG Brain PET is a valuable paraclinical tool for presurgical assessments of patients suffering from refractory epilepsy. By the widespread accessibility of PET, recognizing the functional lesions has become a current practical method especially in preoperative evaluations of the partial epilepsy disorders. The aim of our study was to assess the impact of quantit...
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Due to some physiological and physical limitations in the brain and the eye, the human visual system (HVS) is unable to perceive some changes in the visual signal whose range is lower than a certain threshold so-called just-noticeable distortion (JND) threshold. Visual attention (VA) provides a mechanism for selection of particular aspects of a visual scene so as to reduce the computational loa...
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Perceived time can have a significant impact on vital responses to daily activities and behaviors. Studies have shown that the surrounding environment can also affect human perception from time, place or event. The purpose of this study is to investigate the interrelationship between the environment and, more specifically, the architecture and the time perception of individuals. Also, the study...
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ژورنال
عنوان ژورنال: British Journal of Ophthalmology
سال: 1953
ISSN: 0007-1161
DOI: 10.1136/bjo.37.3.165