Visual acuity evaluated by pattern-reversal visual-evoked potential is affected by check size/visual angle
نویسندگان
چکیده
منابع مشابه
Human Gaze Following Response Is Affected by Visual Acuity
The present study investigated how gaze following eye movements are affected by stimulus contrast and spatial frequency and by aberrations in central visual acuity due to refractive errors. We measured 30 healthy subjects with a range of visual acuities but without any refractive correction. Visual acuity was tested using a Landolt-C chart. Subjects were divided into three groups with low, inte...
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The natural visual acuities of 15 adult persons were predicted on the basis of changes in visual evoked potentials (VEP's) to flashed patterns of various sized dots. An objective method was used to quantify the VEP's, based on the minimum-sized stimulus that would elicit a pattern VEP- the VEP pattern threshold. This measure was highly correlated with recognition and resolution measures of perc...
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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...
متن کاملThe pattern-pulse multifocal visual evoked potential.
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ژورنال
عنوان ژورنال: Neuroscience Bulletin
سال: 2012
ISSN: 1673-7067,1995-8218
DOI: 10.1007/s12264-012-1292-9