نتایج جستجو برای: erd

تعداد نتایج: 1023  

Journal: :The Keio journal of medicine 2011
Takamichi Tohyama Toshiyuki Fujiwara Jun Matsumoto Kaoru Honaga Junichi Ushiba Tetsuya Tsuji Kimitaka Hase Meigen Liu

Recently, surface electroencephalogram (EEG)-based brain-machine interfaces (BMI) have been used for people with disabilities. As a BMI signal source, event-related desynchronization of alpha-band EEG (8-13 Hz) during motor imagery (mu ERD), which is interpreted as desynchronized activities of the activated neurons, is commonly used. However, it is often difficult for patients with severe hemip...

ژورنال: پژوهنده 2007
نیک پور, کتر شهریار, واحدی, دکتر انسیه,

سابقه و هدف: با توجه به شایع بودن بیماری ریفلاکس گاستروازوفاژیال(GERD) و سندرم روده تحریک‌پذیر (IBS) و گزارش‌هایی مبنی بر بالا بودن شیوع همپوشانی این دو اختلال، همچنین تفکیک GERD به دو دسته با ازوفاژیت (ERD) و بدون ازوفاژیت (NERD)، این مطالعه با هدف مقایسه شیوع IBS در گروه مبتلایان به ERD با گروه NERD مراجعه کننده به کلینیک گوارش بیمارستان لقمان حکیم در سال 1384 انجام گرفت. مواد و روشها: این مط...

2017
Shohei Nishikawa Hiroshi Kunikata Naoko Aizawa Toru Nakazawa

Laser retinal photocoagulation is the gold standard treatment for diabetic retinopathy. We describe 3 cases in which bullous exudative retinal detachment (ERD) developed after pattern scan laser photocoagulation (PASCAL) in diabetic retinopathy. ERD spontaneously resolved in all 3 cases with various visual courses. This case series highlights 2 key points: first, ERD can occur regardless of gen...

2017
Kosuke Kitahara Yoshikatsu Hayashi Shiro Yano Toshiyuki Kondo

Event-related desynchronization/synchronization (ERD/S) is an electroencephalogram (EEG) feature widely used as control signals for Brain-Computer Interfaces (BCIs). Nevertheless, the underlying neural mechanisms and functions of ERD/S are largely unknown, thus investigating them is crucial to improve the reliability of ERD/S-based BCIs. This study aimed to identify Motor Imagery (MI) condition...

2017
Mi-Hyun Choi Boseong Kim Hyung-Sik Kim Seon-Young Gim Woo-Ram Kim Soon-Cheol Chung

This study was conducted to identify characteristics of the perceptual threshold level and electroencephalogram (EEG) responses to vibrotactile stimulations at various high frequencies, and to examine the possibility of distinguishing vibrotactile stimulations by frequency through such response characteristics. The vibrotactile stimulations of six frequencies (150, 200, 225, 250, 275 and 300 Hz...

Journal: :Journal of neurophysiology 2013
Mitsuaki Takemi Yoshihisa Masakado Meigen Liu Junichi Ushiba

There is increasing interest in electroencephalogram (EEG)-based brain-computer interface (BCI) as a tool for rehabilitation of upper limb motor functions in hemiplegic stroke patients. This type of BCI often exploits mu and beta oscillations in EEG recorded over the sensorimotor areas, and their event-related desynchronization (ERD) following motor imagery is believed to represent increased se...

2013
M. A. Marcos - Fernández V. M. Asensio - Sánchez

We describe the case of a 70-year-old male patient with ethmoid sinus adenocarcinoma who developed an exudative retinal detachment (ERD) in the right eye as the first manifestation. Two weeks after presentation, total regression of the ERD was noted. Extensive investigations for local causes of ERD were unrewarding. Finally, we performed a computed tomography scanning of the head that revealed ...

Journal: :Journal of the Optical Society of America. A, Optics and image science 1985
J P van Santen G Sperling

The elaborated Reichardt detector (ERD) proposed by van Santen and Sperling [J. Opt. Soc. Am. A 1, 451 (1984)], based on Reichardt's motion detector [Z. Naturforsch. Teil B 12, 447 (1957)], is an opponent system of two mirror-image subunits. Each subunit receives inputs from two spatiotemporal filters (receptive fields), multiplies the filter outputs, and temporally integrates the product. Subu...

Journal: :Brain : a journal of neurology 1998
N E Crone D L Miglioretti B Gordon J M Sieracki M T Wilson S Uematsu R P Lesser

Human scalp EEG studies have shown that event-related desynchronization (ERD) in the alpha (8-13 Hz) and beta (15-25 Hz) bands may be used to detect functional activation of sensorimotor cortex. However, in most previous studies somatotopy has not been examined in detail and brief, self-paced movements, focusing on the planning of motor output, have been used. We recorded electrocorticographic ...

Journal: :Investigative ophthalmology & visual science 1996
K Ray G M Acland G D Aguirre

PURPOSE To determine whether early retinal degeneration (erd) and progressive rod cone degeneration (prcd), two canine hereditary retinal degenerations, are caused by allelic mutations; to determine the cDNA sequence of the canine RDS/peripherin homolog (CFRDSP); and to test whether mutations(s) in CFRDSP cause(s) either erd or prcd. METHODS Three erd-affected dogs were crossbred to three prc...

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