نتایج جستجو برای: blinking

تعداد نتایج: 2535  

Journal: :بینا 0
نوشین بزازی n bazazi hamedan university of medical sciences, hamedan, iranدانشگاه علوم پزشکی همدان الهام سالاری e salari hamedan university of medical sciences, hamedan, iranدانشگاه علوم پزشکی همدان مهردخت مزده m mazdeh hamedan university of medical sciences, hamedan, iranدانشگاه علوم پزشکی همدان سعادت ترابیان s torabian hamedan university of medical sciences, hamedan, iranدانشگاه علوم پزشکی همدان راضیه احمدی r ahmadi سیامک اکبرزاده s akbarzadeh hamedan university of medical sciences, hamedan, iranدانشگاه علوم پزشکی همدان

purpose: to evaluate the etiologies of excessive blinking in children and teenagers less than 18 years of age in hamedan, iran. methods: this study was performed during 2009-2010 as a cross-sectional study on 50 children and teenagers less than 18 years old who were referred to sheikh-al-reis and farshchian clinics in hamedan for abnormal and excessive blinking. ophthalmic and neurologic examin...

Journal: :Movement disorders : official journal of the Movement Disorder Society 2008
Rocco Agostino Matteo Bologna Loredana Dinapoli Bruno Gregori Giovanni Fabbrini Neri Accornero Alfredo Berardelli

Blinking, a motor act consisting of a closing and an opening eyelid movement, can be performed voluntarily, spontaneously, and reflexly. In this study we investigated the kinematic features of voluntary, spontaneous, and reflex blinking in patients with Parkinson's disease (PD), OFF and ON dopaminergic treatment. Patients were asked to blink voluntarily as fast as possible. Spontaneous blinking...

Journal: :Brain : a journal of neurology 2009
Matteo Bologna Rocco Agostino Bruno Gregori Daniele Belvisi Donatella Ottaviani Carlo Colosimo Giovanni Fabbrini Alfredo Berardelli

Patients with progressive supranuclear palsy (PSP) often have blinking abnormalities. In this study we examined the kinematic features of voluntary, spontaneous and reflex blinking in 11 patients with PSP and healthy control subjects. Patients were asked to blink voluntarily as fast as possible; spontaneous blinking was recorded during two 60 s rest periods; reflex blinking was evoked by electr...

2009
Matteo Bologna Rocco Agostino Bruno Gregori Daniele Belvisi Donatella Ottaviani Carlo Colosimo Giovanni Fabbrini Alfredo Berardelli

Patients with progressive supranuclear palsy (PSP) often have blinking abnormalities. In this study we examined the kinematic features of voluntary, spontaneous and reflex blinking in 11 patients with PSP and healthy control subjects. Patients were asked to blink voluntarily as fast as possible; spontaneous blinking was recorded during two 60 s rest periods; reflex blinking was evoked by electr...

Journal: :acta medica iranica 0
d. aghadoost a. talebian

abnormalities of blinking in childhood are not uncommon. to determine the characteristics and causes of excessive blinking, this prospective, non–comparative consecutive case series study was carried out. in outpatient clinics of ophthalmology and neurology of our hospital, 60 children aging 2-16 years old with excessive blinking were examined. detailed ophthalmologic and neurologic evaluation ...

Journal: :Journal of neurology, neurosurgery, and psychiatry 1986
R D Rafal K D Laxer J S Janowsky

An epileptic girl with Lennox-Gastaut syndrome had seizures triggered specifically by blinking, but not by other eye movements or by photic stimulation. Electrographic and clinical seizures were most reliably precipitated by repetitive blinking produced voluntarily on command, by reflex blinking on corneal stimulation, or by psychogenic triggers of blinking such as social stress or cognitive ef...

2016
Hagen Lehmann Alessandro Roncone Ugo Pattacini Giorgio Metta

Blinking behavior is an important part of human nonverbal communication. It signals the psychological state of the social partner. In this study, we implemented different blinking behaviors for a humanoid robot with pronounced physical eyes. The blinking patterns implemented were either statistical or based on human physiological data. We investigated in an online study the influence of the dif...

Blinking and eye movement are one of the most important abilities that most people have, even people with spinal cord problem. By using this ability these people could handle some of their activities such as moving their wheelchair without the help of others. One of the most important fields in Human-Robot Interaction is the development of artificial limbs working with brain signals. The purpos...

Journal: :SIAM J. Applied Dynamical Systems 2013
Martin Hasler Vladimir N. Belykh Igor Belykh

We study stochastically blinking dynamical systems as in the companion paper (Part I). We analyze the asymptotic properties of the blinking system as time goes to infinity. The trajectories of the averaged and blinking system cannot stick together forever, but the trajectories of the blinking system may converge to an attractor of the averaged system. There are four distinct classes of blinking...

Journal: :Journal of the Royal Society, Interface 2013
Kyung-Ah Kwon Rebecca J Shipley Mohan Edirisinghe Daniel G Ezra Geoff Rose Serena M Best Ruth E Cameron

Blinking is vital to maintain the integrity of the ocular surface and its characteristics such as blink duration and speed can vary significantly, depending on the health of the eyes. The blink is so rapid that special techniques are required to characterize it. In this study, a high-speed camera was used to record and characterize voluntary blinking. The blinking motion of 25 healthy volunteer...

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