نتایج جستجو برای: pattern visual evoked potentials

تعداد نتایج: 808180  

Journal: :journal of current ophthalmology 0
جواد هرویان javad heravian علی اکبر صابرمقدم ali akbar saber moghaddam مرضیه نجاران marzieh najjaran عباس عظیمی abbas azimi هادی استادی مقدم hadi ostadimoghaddam عباسعلی یکتا abbasali yekta محسن فروغی پور

purpose : to evaluate the efficacy of pattern visual evoked potentials (pvep), standard automated perimetry (sap), short-wavelength automated perimetry (swap), contrast sensitivity (cs), stereoacuity testing in detecting subclinical visual impairment in visually asymptomatic patients with multiple sclerosis (ms) and no history of optic neuritis methods : twenty-seven eyes of 27 patients (7 male...

Journal: :British Journal of Ophthalmology 1988

Journal: :iranian journal of medical sciences 0
mohammad reza talebnejad poostchi ophthalmology research center, shiraz university of medical sciences, shiraz, iran saeedeh hosseinmenni poostchi ophthalmology research center, shiraz university of medical sciences, shiraz, iran and department of optometry, iran university of medical sciences, tehran, iran ebrahim jafarzadehpur department of optometry, iran university of medical sciences, tehran, iran ali  mirzajani department of optometry, iran university of medical sciences, tehran, iran enayatollah  osroosh department of optometry, mashhad university of medical sciences, mashhad, iran

background: we compared the wave amplitude of visually evoked potential (vep) between patients with esotropic and anisometropic amblyopic eyes and a normal group. methods: the wave amplitude of vep was documented in 2 groups of persons with amblyopia (15 with esotropia and 28 with anisometropia) and 1 group of individuals with normal visual acuity (n, 15). the amplitude of p100 was recorded mon...

Journal: :Journal of Ophthalmic and Vision Research 2017

Journal: :annals of military and health science research 0
ولی اله صبا valiallah saba radiation research center, faculty of paramedicine, aja university of medical sciences, tehran, iran. آرش راکی arash rocky department of electronic, faculty of engineering, shahid chamran university of ahvaz, ahvaz, iran.

purpose: to assess three main emotions (happy, sad and calm) by various classifiers, using appropriate feature extraction and feature selection. materials and methods: in this study a combination of power spectral density and a series of statistical features are proposed as statistical-frequency features. next, a feature selection method from pattern recognition (pr) tools is presented to extra...

Journal: :بینا 0
علیرضا دهقانی ar dehghani اصفهان- خیابان صفه- بیمارستان الزهرا وحید شایگان نژاد v shaygannejad اصفهان- خیابان صفه- بیمارستان الزهرا فریبرز فردوسی f ferdosi اصفهان- خیابان صفه- بیمارستان الزهرا آذین شایگان فر a shayganfar

purpose: to determine the clinical and paraclinical features of multiple sclerosis (ms) in patients presenting for the first time with optic neuritis. methods:  in this descriptive study, 35 patients with clinical evidence of optic neuritis were enrolled. our evaluation included a neurological examination, visual evoked potentials (vep), brainstem-auditory evoked potentials (baep), and brain mr...

Journal: :Canadian Journal of Neurological Sciences / Journal Canadien des Sciences Neurologiques 1984

Journal: :Journal of Neurology, Neurosurgery & Psychiatry 1981

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