Results 241 to 250 of about 229,880 (284)

Human smooth pursuit: stimulus-dependent responses

Journal of Neurophysiology, 1987
We studied pursuit eye movements in seven normal human subjects with the scleral search-coil technique. The initial eye movements in response to unpredictable changes in target motion were analyzed to determine the effect of target velocity and position on the latency and acceleration of the response.
J R, Carl, R S, Gellman
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Smooth pursuit disorders.

Bailliere's clinical neurology, 1994
Smooth pursuit is a relatively recent eye movement which has developed in frontal-eyed species. The smooth pursuit system is involved during foveal smooth pursuit, the 'rapid' component of OKN slow phase and VOR suppression. The cortical areas controlling smooth pursuit (at the temporo-parieto-occipital junction and in the FEF) send ipsilateral ...
C, Pierrot-Deseilligny, B, Gaymard
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Smooth Pursuit in Strabismic Children

1994
Pursuit responses to a sinusoidally moving target have been studied in subjects of pediatric age affected by late-onset strabismus. The smooth pursuit (SP) has been evaluated from the smooth components of eye velocity and the global pursuit (GP), due to the interaction of the smooth pursuit and the saccadic systems, has been studied on the eye position
DA POZZO S., PENSIERO S., DELL'AQUILA T., INCHINGOLO P., ACCARDO, AGOSTINO, SPAGNO C., PERISSUTTI P.   +6 more
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Smooth pursuit of amodally completed images

Experimental Eye Research, 2019
In order to evaluate the effect of the parafoveal area of the retina on smooth pursuit, we compared the horizontal smooth pursuit of visible and amodally completed stimuli in people with central vision loss and controls. In the amodally completed stimuli, a black mask covered the bottom vertex of a moving diamond which is the feature whose movement ...
Esther G. González, Henry Liu, Luminita Tarita-Nistor, Efrem Mandelcorn, Mark Mandelcorn   +4 more
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Eye Movements, Smooth Pursuit

2003
Smooth pursuit (SP) maintains visual acuity of slow-moving objects by keeping their image near the fovea. SP impairment is recognized by saccadic pursuit and occurs toward the side of lesions at the parietal, occipital, and temporal lobe junction (area V5); the frontal eye field and their projections to the basal pontine nuclei; paraflocculus; and ...
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Smooth pursuit dysfunction in Alzheimer's disease

Neurology, 1988
Smooth ocular pursuit was measured by magnetic search coil oculography in 13 patients with Alzheimer's disease and compared with control subjects. Smooth eye movement gain was uniformly reduced in Alzheimer's disease at all target velocities for several frequencies of sinusoidal target motion, signifying impairment of steady-state gain.
W A, Fletcher, J A, Sharpe
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Cerebellar role in smooth pursuit movement

Documenta Ophthalmologica, 1977
It is generally believed that pursuit eye movements are unaffected by cerebellar cortical atrophy or cerebellectomy. The present study was performed on patients who underwent partial vermis and hemisphere ablations as a result of severe cranial injury or cerebellar tumors. Eye movements were measured by DC electro-oculography.
P, Nemet, S, Ron
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Real-time binocular smooth pursuit

International Journal of Computer Vision, 1993
This article examines the problem of a moving robot tracking a moving object with its cameras, without requiring the ability to recognize the target to distinguish it from distracting surroundings. A novel aspect of the approach taken is the use of controlled camera movements to simplify the visual processing necessary to keep the cameras locked on the
David Coombs, Christopher Brown
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Towards 3D smooth pursuit interaction

Adjunct Proceedings of the 2019 ACM International Joint Conference on Pervasive and Ubiquitous Computing and Proceedings of the 2019 ACM International Symposium on Wearable Computers, 2019
In this position paper, we encourage the use of novel 3D gaze tracking possibilities in the field of gaze-based interaction. Smooth pursuit offers great benefits over other gaze interaction approaches, like the ability to work with uncalibrated eye trackers, but also has disadvantages like the produced visual clutter in more complex user interfaces. We
Marcel Breitenfellner, Florian Jungwirth, Alois Ferscha   +2 more
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Automatic Smoothing Spline Projection Pursuit

Journal of Computational and Graphical Statistics, 1994
Abstract A highly flexible nonparametric regression model for predicting a response y given covariates {xk}d k=1 is the projection pursuit regression (PPR) model ŷ = h(x) = β0 + Σjβjfj(αT jx) where the fj , are general smooth functions with mean 0 and norm 1, and Σd k=1α2 kj=1.
Charles B. Roosen, Trevor J. Hastie
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