Results 251 to 260 of about 11,454 (281)

Automated electrooculography — a microprocessor application example

Journal of Medical Engineering & Technology, 1980
An Intel 8080 microprocessor is used to control the running, and also analyse the results of a clinical test, the electrooculogram. The processor provides a moving stimulus using a strip of thirty-two light emitting diodes. From electrodes attached medial and lateral to the eyes, the sinusoidal signals generated by the stimulated lateral eye movements ...
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Gaze tracker by electrooculography (EOG) on a head-band

2011 10th International Workshop on Biomedical Engineering, 2011
A compact gaze tracker was developed by processing electrooculogram (EOG) signals taken from electrodes secured to an elastic head band. We confirmed that eye position is perceived by an observer in normal social interaction within 5°. We developed the prototype named PANTOJO after its pantographic potential to move a prosthetic eye following the ...
Franco Simini, Andres Touya, Agustin Senatore, Jose Pereira   +3 more
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Optimal Bipolar Lead Placement in Electrooculography (EOG): A Comparative Study with an Emphasis on Prolonged Blinks

International Conference on Computing Communication and Networking Technologies, 2020
Electrooculography (EOG) is the measurement of potentials generated by the ocular muscle family during the exhibition of various eye movements.
Rajeev Anchan, Ashwin Pillay, A. Kale, Aniket Bhadricha, S. Ram   +4 more
semanticscholar   +1 more source

Eyeglasses based electrooculography human-wheelchair interface

2009 IEEE International Conference on Systems, Man and Cybernetics, 2009
This paper describes an electrooculography (EOG) based human-wheelchair interface for wheelchair users. A pair of electrodes which measures the eye-gaze direction of users is desired as wheelchair manipulation commands. In addition to EOG based wheelchair manipulations, this paper also introduces ultrasonic arrays for detecting distances to actively ...
Hung-Chyun Chou, Yi-Chang Chan, Jia-Wun Siao, Chung-Hsien Kuo   +3 more
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Data Acquisition and Modeling in Clinical Electrooculography

IFAC Proceedings Volumes, 1984
Abstract Electrooculography (EOG) is used in clinical ophthalmology to measure the time response of the corneoretinal potential (CRP) to changes in light intensity. A system for automatic data acquisition and model estimation has been developed. The data acquisition is performed on a microprocessor based instrument, which supervises the EOG test ...
G.M. Stephens, W. Poelzleitner, A.U. Meyer   +2 more
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Automatic Sleep Stage Detection Based on Electrooculography

2015
Scientists concentrate on the assessment of the micro and macro structure of sleep and the associated physiological activities in sleep. Their achievements heavily rely on the use of technology. Utilising the conventional method known as manual sleep stage scoring, is tedious and time-consuming.
Emad Malaekah, Dean Cvetkovic, Haslaile Abdullah   +2 more
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Low-Cost Wireless Electrooculography Speller

2018 IEEE International Conference on Systems, Man, and Cybernetics (SMC), 2018
While communication is an innate ability to most of us, individuals with severe motor disability such as amyotrophic lateral sclerosis (ALS) have difficulty in daily communication. Nowadays, with the help of human-computer interface (HCI), they can communicate using bio-signal which can be measured from the human body and monitored. Electrooculography (
Smitha Kavallur Pisharath Gopi, Hoi Ka Hou   +1 more
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Analyzing Electrooculography (EOG) for Eye Movement Detection

2019
Although the cognitive parts of their brains are intact, some individual scan only interact with the outside environment through eye movements. Those people suffer from severe motor disabilities preventing them from moving all their limbs. Recently, Human Computer Interfaces (HCI) has emerged to help these people by providing them a new way for ...
Manal M. Tantawi, Radwa Reda, Mohamed F. Tolba, Howida A. Shedeed   +3 more
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Quantitative analysis on electrooculography (EOG) for neurodegenerative disease

AIP Conference Proceedings, 2007
Many studies have documented abnormal horizontal and vertical eye movements in human neurodegenerative disease as well as during altered states of consciousness (including drowsiness and intoxication) in healthy adults. Eye movement measurement may play an important role measuring the progress of neurodegenerative diseases and state of alertness in ...
Chang-Chia Liu, W. Art Chaovalitwongse, Panos M. Pardalos, Onur Seref, Petros Xanthopoulos, J. C. Sackellares, Frank M. Skidmore, Onur Seref, O. Erhun Kundakcioglu, Panos Pardalos   +9 more
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Dark adaptation compared with electrooculography in primary biliary cirrhosis

Documenta Ophthalmologica, 1989
In a series of asymptomatic patients with primary biliary cirrhosis there was a significant impairment of dark adaptation thresholds as compared with a control group. Vitamin A levels were abnormally low in only two of the patients and these two both showed high dark adaptation thresholds.
P. Toghill, G. Brimlow, N. R. Galloway, C. Barber, R. P. Walt   +4 more
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