Effect of simulated octant visual field defects on the visual evoked potential (VEP)

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چکیده

منابع مشابه

Effect of simulated octant visual field defects on the visual evoked potential (VEP).

everal previous clinical research studies1--6 have found he pattern visual-evoked potential (VEP) to be useful in etecting a wide range of visual-field defects objectively. n a previous study completed in our laboratory,6 circuar, annular, hemi-field, and quadrant absolute visual-field efects were simulated and assessed objectively for detecion and discrimination using the pattern VEP method. h...

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Introduction: Visual evoked potentials contain certain diagnostic information which have proved to be of importance in the visual systems functional integrity. Due to substantial decrease of amplitude in extra macular stimulation in commonly used pattern VEPs, differentiating normal and abnormal signals can prove to be quite an obstacle. Due to developments of use of machine l...

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the effect of using visual aids on the development of speech act of disagreement among iranian intermediate efl learners

abstract the present study tried to investigate the effect of visual aids (films) on the development of the speech act of disagreement among iranian efl intermediate learners. to this end, the researcher selected 40 homogeneous intermediate learners based on their scores on oxford placement test. .the subjects then divided into control group and experimental group. both classes were tested by ...

Assessing the Effect of Opium Dependence on Visual Evoked Potential (VEP) in Men

BACKGROUND Opium-dependence having different effects on the nervous system is a common problem, especially in the Middle East and Iran. The aim of this study is evaluating the effects of opium-dependence on visual evoked potential (VEP) in men. METHODS Thirty subjects with both chronic cigarette smoking and opium-dependence (group 1) and 30 subjects with only chronic cigarette smoking (group ...

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ژورنال

عنوان ژورنال: Journal of Optometry

سال: 2014

ISSN: 1888-4296

DOI: 10.1016/j.optom.2014.05.003