Spatial Localization During Pursuit Eye Movements
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Spatial Localization During Pursuit Eye Movements
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Author : Ronald Mark Hansen
language : en
Publisher:
Release Date : 1978
Spatial Localization During Pursuit Eye Movements written by Ronald Mark Hansen and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1978 with Eye categories.
Neural Basis Of Spatial Localization During Eye Movements
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Author : Till Sebastian Hartmann
language : de
Publisher:
Release Date : 2006
Neural Basis Of Spatial Localization During Eye Movements written by Till Sebastian Hartmann and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2006 with categories.
Spatial Localization Of Objects In Eye Movements And Perception
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Author : Dhanraj Vishwanath
language : en
Publisher:
Release Date : 2002
Spatial Localization Of Objects In Eye Movements And Perception written by Dhanraj Vishwanath and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2002 with categories.
Visual Spatial Attention During Smooth Eye Movements
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Author : Marc Chaderjian
language : en
Publisher:
Release Date : 1992
Visual Spatial Attention During Smooth Eye Movements written by Marc Chaderjian and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1992 with categories.
Eye Movements And Visual Information Processing
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Author :
language : en
Publisher:
Release Date : 1992
Eye Movements And Visual Information Processing written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1992 with categories.
The central goal of the project funded by the current grant is the understanding of how saccadic eye movements are used to accurately localize objects in space. Explaining accurate localization is a real problem because the objects we choose to look at are relatively large -- typically extending over several degrees of space -- but the saccadic eye movement must land at one place within the target. Our published research suggests that the computation requires a sequence of two stages: (1) voluntary attentional weighting of information in the visual display, and (2) automatic-spatial-pooling of the weighted formation (He and Kowler, 1989; 1991).
Localization During Pursuit Eye Movement
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Author : Gerrit Bernard Rotman
language : en
Publisher:
Release Date : 2005
Localization During Pursuit Eye Movement written by Gerrit Bernard Rotman and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2005 with categories.
The Role Of Pursuit Eye Movements In Visual Localization
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Author : Frank Earl Ward
language : en
Publisher:
Release Date : 1974
The Role Of Pursuit Eye Movements In Visual Localization written by Frank Earl Ward and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1974 with Eye categories.
Updating Reach Plans For Smooth Pursuit Eye Movements
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Author : Richard Stacey
language : en
Publisher:
Release Date : 2015
Updating Reach Plans For Smooth Pursuit Eye Movements written by Richard Stacey and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2015 with categories.
"Over the last several decades, significant progress has been made in understanding how primates use vision to guide reaches. Visually guided reaching is complicated by the fact that primates make continuous eye movements, causing visual information to shift multiple times a second. It is still poorly understood how the brain accounts for these visual shifts and maintains the spatial stability of visually guided reaching. Building upon the current science, this thesis presents new studies that advance our understanding of the neural mechanisms underlying visually guided reaching.Visual information is perturbed by many types of motion, from the translation of the body through space, to head movements, to fast, saccadic eye movements. In particular, it is not well understood how the brain accounts for slower, tracking eye movements called smooth pursuits. We found that both smooth pursuit and the more common saccadic eye movements have equivalent effects on the neural substrates of visually guided reaching. This result suggests that the brain compensates for changes to visual information similarly even if the mechanism that moves the eyes is different.Given that smooth pursuits can last many seconds, the time course of compensation for changes to visual information during the pursuit is unclear. We found that neural reach activity in the cortex changes continuously throughout the pursuit. This is the first finding that cortical reach neurons update continuously, and it implies that there are mechanisms to compensate for slow changes to vision that could potentially operate under other conditions like walking and head movements.Finally, what signals does the brain use to account for eye movements? By manipulating the predictability of pursuits using visual feedback about their endpoint, we found that predictable eye movements were better compensated for than unpredictable eye movements. Many studies note the importance of feedforward signals related to the eye movement command. Our finding reinforces the view that the brain compensates for shifts to visual information by combining both feedback and feedforward signals." --
Visual And Oculomotor Functions
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Author : G. d'Ydewalle
language : en
Publisher: Elsevier
Release Date : 2013-10-22
Visual And Oculomotor Functions written by G. d'Ydewalle and has been published by Elsevier this book supported file pdf, txt, epub, kindle and other format this book has been release on 2013-10-22 with Medical categories.
A collection of contemporary work in various areas of eye-movement research with an emphasis on physiological aspects is presented in this book. The contributions are divided into six sections: I. saccadic eye movements; II. smooth pursuit and motion perception; III. eye movements in pathology and clinical settings; IV. neurophysiology of eye movements; V. optokinetic nystagmus; and VI. methods. This volume provides updated information on the most recent research on eye movements carried out mainly in Europe.
Adaptive Spatial Alignment
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Author : Gordon M. Redding
language : en
Publisher: Psychology Press
Release Date : 2013-06-17
Adaptive Spatial Alignment written by Gordon M. Redding and has been published by Psychology Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2013-06-17 with Psychology categories.
For most people, prism adaptation is an amusing demonstration, first experienced perhaps in an introductory psychology course. This monograph relates this peculiar phenomenon to the larger context of cognitive science, especially motor control and learning. The first part sketches the background concepts necessary to understand the contribution of prism adaptation to the larger issue of adaptive perceptual-motor performance including: * a review of the basic concepts of motor control and learning that enable strategic response in the prism adaptation situation; * the development of a hypothesis about spatial representation and spatial mapping and an introduction to the basic idea of adaptive spatial alignment; and * a contrasting view of perceptual and motor learning and a review of evidence for the involvement of nonassociative and associative learning in prism adaptation. Directly concerned with data and theory in prism adaptation, the second part presents: * an outline of prism adaptation methodology and a list of several empirical conclusions from previous research that constrained development of theoretical framework; * a theory of strategic perceptual-motor control and learning which enables adaptive performance during prism exposure, but does not directly involve adaptive spatial alignment; * an extention of the theory to include realignment processes which correct for the spatial misalignment among sensorimotor systems produced by prisms; and * a demonstration of how traditional issues in prism adaptation may be rephrased in terms of the present theoretical framework. The last part of this volume reviews the research conducted in developing and testing the present theory of prism adaptation. It summarizes the initial investigations (employing a naturalistic exposure setting), reports some more rigorous tests with an experimentally constrained research paradigm, points out the more general theoretical issues raised by the authors' analysis of prism adaptation, and makes specific suggestions for further research within the prism adaptation paradigm.