Journal ArticleDOI
A Method of Measuring Eye Movemnent Using a Scieral Search Coil in a Magnetic Field
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TLDR
In this article, the voltage generated in a coil of wire embedded in a scleral contact lens worn by the subject was measured using two magnetic fields in quadrature phase and two coils on the lens, one may measure horizontal, vertical and torsional eye movements simultaneously.Abstract:
With the subject exposed to an alternating magnetic field, eye position may be accurately recorded from the voltage generated in a coil of wire embedded in a scleral contact lens worn by the subject. Using two magnetic fields in quadrature phase and two coils on the lens, one may measure horizontal, vertical and torsional eye movements simultaneously. The instrument described has an accuracy and linearity of about 2 per cent of full scale, a resolution of 15 seconds of arc and a bandwidth of 1000 cyles per second.read more
Citations
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Journal ArticleDOI
Implantation of magnetic search coils for measurement of eye position: an improved method.
Journal ArticleDOI
A selective impairment of motion perception following lesions of the middle temporal visual area (MT)
William T. Newsome,EB Pare +1 more
TL;DR: The results indicate that neural activity in MT contributes selectively to the perception of motion.
Journal ArticleDOI
Neural Mechanisms of Visual Working Memory in Prefrontal Cortex of the Macaque
TL;DR: It is suggested that PF cortex plays a primary role in working memory tasks and may be a source of feedback inputs to IT cortex, biasing activity in favor of behaviorally relevant stimuli.
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Dissociation of Object and Spatial Processing Domains in Primate Prefrontal Cortex
TL;DR: These findings indicate that the prefrontal cortex contains separate processing mechanisms for remembering "what" and "where" an object is.
Journal ArticleDOI
The mechanics of human saccadic eye movement.
TL;DR: The evidence presented here will demonstrate that the system of eyeball and orbital tissues is heavily overdamped, has no resonant frequency and is little affected by the mass of the eyeball.
References
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Journal ArticleDOI
Posicast Control of Damped Oscillatory Systems
TL;DR: In this article, a method for producing dead-bea response in a lightly-damped oscillatory feedback system is presented, which consists of exciting several transient oscillations, at closely spaced times, with magnitudes and phases so adjusted that the resultant sum of the transient oscillation phasors is zero.
Journal ArticleDOI
Involuntary eye movements during fixation
R. W. Ditchburn,B. L. Ginsborg +1 more
TL;DR: The results of the three most recent investigations give the following results: Ratliff & Riggs (1950) find an irregular movement of high frequency and small extent, while Lord & Wright (1948) and Lord (1951) find movements of type (2).
Journal ArticleDOI
Mechanism of saccadic eye movements.
TL;DR: The widespread occurrence of saccadic movements in the normal human and the fact that they can be observed in very young infants and in lower species with good ocular motility suggest that they constitute a basic response pattern in the oculomotor system.
Journal ArticleDOI
Involuntary motions of the eye during monocular fixation.
Floyd Ratliff,Lorrin A. Riggs +1 more
Journal ArticleDOI
Determination of the stimuli for involuntary drifts and saccadic eye movements.
TL;DR: It is concluded that the primary stimulus condition for involuntary saccadic eye movements is displacement of the retinal image on the retina, and that drift is the result of an instability of the oculomotor system.