نتایج جستجو برای: Evoked potentials

تعداد نتایج: 134881  

Journal: :iranian journal of child neurology 0
athina ververi 1. department of pediatrics, medical school, aristotle university of thessaloniki, thessaloniki, greece euthymia vargiami 1. department of pediatrics, medical school, aristotle university of thessaloniki, thessaloniki, greece vassiliki papadopoulou 2. department of child psychiatry, hippokration hospital, thessaloniki, greece dimitrios tryfonas 1. department of pediatrics, medical school, aristotle university of thessaloniki, thessaloniki, greece dimitrios i zafeiriou 1. department of pediatrics, medical school, aristotle university of thessaloniki, thessaloniki, greece

how to cite this article: ververi a, vargiami e, v papadopoulou v, tryfonas d, zafeiriou di. brainstem auditory evoked potentials in boys with autism: still searching for the hidden truth. iran j child neurol. spring 2015;9(2):21-28. abstract objective brainstem auditory evoked potentials (baeps) have long been utilized in the investigation of auditory modulation and, more specifically, auditor...

Journal: :the modares journal of electrical engineering 2011
ali heydari chaleshtori ahmad reza sharafat

we compare performance of adaptive schemes which are based on radial-basis functions and kalman filters for fast extraction of auditory evoked potentials. moreover, we propose a new method based on evoked potential modeling in the kalman filter framework, which can improve the accuracy compared to the existing methods. simulation results show that adaptive schemes and the kalman method are not ...

Journal: :medical journal of islamic republic of iran 0
mehri maleki department of audiology, school of rehabilitation sciences, shahidbesheshti university of medical sciences, iran.سازمان اصلی تایید شده: دانشگاه علوم پزشکی شهید بهشتی (shahid beheshti university of medical sciences) zahra jafari department of basic sciences in rehabilitation, rehabilitation research center, school of rehabilitation sciences, tehran university of medical sciences, tehran, iran.سازمان اصلی تایید شده: دانشگاه علوم پزشکی تهران (tehran university of medical sciences)سازمان های دیگر: rehabilitation research center homa zarrinkoob department of audiology, school of rehabilitation sciences, shahidbesheshti university of medical sciences, iran.سازمان اصلی تایید شده: دانشگاه علوم پزشکی شهید بهشتی (shahid beheshti university of medical sciences) alireza akbarzadeh baghban department of basic sciences in rehabilitation, school of rehabilitation sciences, shahidbesheshti university of medical sciences, iran.سازمان اصلی تایید شده: دانشگاه علوم پزشکی شهید بهشتی (shahid beheshti university of medical sciences)

background :aging can cause loss of balance, which may lead to physical and psychological problems. as the role of the otolith organs in maintaining postural stability has been emphasized in recent years, the present study investigated the effect of aging on saccular function using cervical vestibular evoked myogenic potentials (cvemp).   methods : the participants were assigned into two groups...

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: :iranian journal of otorhinolaryngology 0
seyede faranak emami department of audiology, faculty of rehabilitation, hamadan university of medical sciences. hamadan, iran.

introduction:   the daf is a large persian frame drum used as a musical instrument in both popular and classical music which can induce a percussive sound at low frequencies (146–290 hz) with peaks of up to 130 dbspl. the percussive sounds have a power distribution in the region of saccular sensitivity. in view of the saccular stimulation by sound in humans, we decided to use cervical vestibula...

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: :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: :iranian journal of medical sciences 0
susan abdi arash hospital, tehran university of medical sciences, tehran, iran ghamartaj khanbabaee mofid children’s hospital, shahid beheshti university of medical sciences, tehran, iran kourosh sheibani imam hossein medical center, shahid beheshti university of medical sciences, tehran, iran

speech delay with an unknown cause is a problem among children. this diagnosis is the last differential diagnosis after observing normal findings in routine hearing tests. the present study was undertaken to determine whether auditory brainstem responses to click stimuli are different between normally developing children and children suffering from delayed speech with unknown causes. in this cr...

Journal: :auditory and vestibular research 0
nahid heydari department of audiology, school of rehabilitation, tehran university of medical sciences, tehran, iran fahimeh hajiabolhassan department of audiology, school of rehabilitation, tehran university of medical sciences, tehran, iran jamileh fatahi department of audiology, school of rehabilitation, tehran university of medical sciences, tehran, iran shafieh movaseghi rheumatology research center, imam khomeini hospital, tehran university of medical sciences, tehran, iran shohreh jalaie biostatistics, school of rehabilitation, tehran university of medical sciences, tehran, iran

background and aim: autoimmune inner ear disease (aied) may accompany certain systemic conditions, such as rheumatoid arth­ritis, and manifest audiovestibular dysfunction. this study aimed to compare the vestibular function between rheumatoid arthritis (ra) patients and normal subjects using cervical vestibular-evoked myogenic potentials and caloric tests. methods: in this cross-sectional study...

Journal: :auditory and vestibular research 0
mehrnaz hosseini department of audiology, school of rehabilitation, tehran university of medical sciences, tehran, iran saeid farahani department of audiology, school of rehabilitation, tehran university of medical sciences, tehran, iran mansoureh adel ghahraman department of audiology, school of rehabilitation, tehran university of medical sciences, tehran, iran shohreh jalaie biostatistics, school of rehabilitation, tehran university of medical sciences, tehran, iran aboulfazl khademi department of aerospace medicine, aja university of medical sciences, tehran, iran

background and aim: motion sickness (ms) is usually generated when there is a mismatch between the senses which serve balance. one of these senses is related to vestibular system, so it is highly possible that ms reflects in vestibular test results. but there are some conflicts in correlation between vestibular findings and ms. thus, the objective of this study was to provide an overview of ves...

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