Reciprocal Interactions Between Motion And Form Perception
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Reciprocal Interactions Between Motion And Form Perception
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Author : P. Sinha
language : en
Publisher:
Release Date : 1994
Reciprocal Interactions Between Motion And Form Perception written by P. Sinha and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1994 with categories.
Reciprocal Interactions Between Motion And Form Perception
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Author : P. Sinha
language : en
Publisher:
Release Date : 1994
Reciprocal Interactions Between Motion And Form Perception written by P. Sinha and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1994 with categories.
Interactions Between Form And Motion Cues In The Visual Perception Of Biological Motion
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Author : Russell J. Reid
language : en
Publisher:
Release Date : 2010
Interactions Between Form And Motion Cues In The Visual Perception Of Biological Motion written by Russell J. Reid and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2010 with Motion perception (Vision) categories.
The Interaction Of Motion And Form In The Perception Of Global Structure
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Author : Chun-Fai Charles Or
language : en
Publisher: Open Dissertation Press
Release Date : 2017-01-27
The Interaction Of Motion And Form In The Perception Of Global Structure written by Chun-Fai Charles Or and has been published by Open Dissertation Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2017-01-27 with categories.
This dissertation, "The Interaction of Motion and Form in the Perception of Global Structure: a Glass-pattern Study" by Chun-fai, Charles, Or, 柯駿輝, was obtained from The University of Hong Kong (Pokfulam, Hong Kong) and is being sold pursuant to Creative Commons: Attribution 3.0 Hong Kong License. The content of this dissertation has not been altered in any way. We have altered the formatting in order to facilitate the ease of printing and reading of the dissertation. All rights not granted by the above license are retained by the author. Abstract: Abstract of thesis entitled "The interaction of motion and form in the perception of global structure: a Glass-pattern study" Submitted by Or Chun Fai, Charles B.Cog.Sc. H.K. for the degree of Master of Philosophy at The University of Hong Kong in December 2005 The processing of visual motion and form is commonly thought to occur in two separate pathways (dorsal and ventral streams) in the visual cortex. This view has been recently re-assessed on the evidence that the analysis of visual information in brain areas along these pathways is not limited to a particular visual attribute, but is specialised for a number of different attributes. For example, brain areas responsible for detecting motion (e.g., MT) also respond to form cues such as the orientation of stationary lines, and similarly those areas responsible for detecting orientation can be stimulated by motion. Given that brain areas are not exclusively limited to the analysis of a particular visual attribute, this thesis addresses whether interactions between motion and form occur when detecting the global structure of patterns undergoing motion. Glass patterns formed by oriented dot-pairs, or dipoles, were used as stimuli. In the first experiment, observers were required to discriminate either the perceived direction of motion (Experiment 1.1-1.2) or dipole orientation (Experiment 1.3) of a frontoparallel Glass pattern, as a function of the angular difference between the orientation and motion direction of dipoles. Perceived motion direction was examined with Glass patterns consisting of same- and opposite-polarity dot pairs. In the latter pattern, the perception of global structure is much reduced and thus form may exert no, or only a minimal, effect on global motion (Experiment 1.2). The results show that the apparent direction of motion was attracted towards the dipole orientation for small angular differences, and surprisingly this effect was comparable regardless of the polarity of dot pairs. However, under the same stimulus conditions, the apparent dipole orientation remained less affected by motion direction. These results indicate that motion and form interact, and that form has a stronger influence on motion perception. As shown in Experiment 1, despite the difficulty in perceiving the global structure of an opposite-polarity Glass pattern when it is stationary, the global structure is detectable when the pattern is set in motion. This finding suggests that the visual system is capable of extracting local orientation from opposite-polarity dipoles with greater efficiency due to the contribution of motion. In Experiment 2 to investigate the role of contrast in local grouping, the contrast of one dot, relative to the other, forming a dipole was varied to assess its impact on the detection of global structure in static and dynamic Glass patterns. Regardless of the contrast variation, the perception of global structure was more salient with dynamic than static Glass patterns. Salience was also improved when both dots in a dipole were lighter than the background, and the global Glass-pattern structure was still visible in spite of the change in polarity of one dot within a pair. These results demonstrate that while motion and form interact, motion processing mechanisms are more powerful in tolerating contrast differences in favour of the perception of glo
Dynamic Interactions Between Apparent Motion And Mental Imagery
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Author : Kazunori Morikawa
language : en
Publisher:
Release Date : 1993
Dynamic Interactions Between Apparent Motion And Mental Imagery written by Kazunori Morikawa and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1993 with categories.
Aspects Of Motion Perception
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Author : Paul A. Kolers
language : en
Publisher: Elsevier
Release Date : 2013-10-22
Aspects Of Motion Perception written by Paul A. Kolers 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 Psychology categories.
International Series of Monographs in Experimental Psychology, Volume 16: Aspects of Motion Perception details the fundamental concepts of the visual system perception of motion. The text first details the various findings about illusory and veridical motions along with the theories conceptualized from those findings. Next, the selection covers the research that studies the reliability and validity of the theories about motion perception. The book also discusses the importance of two-component model of motion perception. The last chapter covers the characteristics of the status of perceptual experiences. The book will be of great use to behavioral scientists and biologists. Ophthalmologists will also benefit from the text.
The Interaction Of Motion And Form In The Perception Of Global Structure
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Author : Chun-fai Or (Charles)
language : en
Publisher:
Release Date : 2005
The Interaction Of Motion And Form In The Perception Of Global Structure written by Chun-fai Or (Charles) and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2005 with Form perception categories.
Perception
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Author :
language : en
Publisher:
Release Date : 2009
Perception written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2009 with Perception categories.
Psychophysics Beyond Sensation
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Author : Christian Kaernbach
language : en
Publisher: Psychology Press
Release Date : 2004-05-20
Psychophysics Beyond Sensation written by Christian Kaernbach and has been published by Psychology Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2004-05-20 with Psychology categories.
This volume presents a series of studies that expand laws, invariants, and principles of psychophysics beyond its classical domain of sensation. This book's goal is to demonstrate the extent of the domain of psychophysics, ranging from sensory processes, through sensory memory and short-term memory issues, to the interaction between sensation and action. The dynamics and timing of human performance are a further important issue within this extended framework of psychophysics: Given the similarity of the various cortical areas in terms of their neuroanatomical structure, it is an important question whether this similarity is paralleled by a similarity of processes. These issues are addressed by the contributions in the present volume using state-of-the-art research methods in behavioral research, psychophysiology, and mathematical modeling. The book is divided into four sections. Part I presents contributions concerning the classical domain of psychophysical judgment. The next two parts are concerned with elementary and higher-order processes and the concluding section deals with psychophysical models. The sections are introduced by guest editorials contributed by independent authors. These editorials present the authors' personals view on the respective section, providing an integrated account of the various contributions or highlighting their focus of interest among them. While also voicing their own and sometimes different point of view, they contribute to the process of discussion that makes science so exciting. This volume should be of great interest to advanced students in neuroscience, cognitive science, psychology, neuropsychology, and related areas who seek to evaluate the range and power of psychological work today. Established scientists in those fields will also appreciate the variety of issues addressed within the same methodological framework and their multiple interconnections and stimulating "cross-talk."
Motion Supports Object Recognition
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Author : Steven R. Holloway
language : en
Publisher:
Release Date : 2011
Motion Supports Object Recognition written by Steven R. Holloway and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2011 with Color vision categories.
The present study explores the role of motion in the perception of form from dynamic occlusion, employing color to help isolate the contributions of both visual pathways. Although the cells that respond to color cues in the environment usually feed into the ventral stream, humans can perceive motion based on chromatic cues. The current study was designed to use grey, green, and red stimuli to successively limit the amount of information available to the dorsal stream pathway, while providing roughly equal information to the ventral system. Twenty-one participants identified shapes that were presented in grey, green, and red and were defined by dynamic occlusion. The shapes were then presented again in a static condition where the maximum occlusions were presented as before, but without motion. Results showed an interaction between the motion and static conditions in that when the speed of presentation increased, performance in the motion conditions became significantly less accurate than in the static conditions. The grey and green motion conditions crossed static performance at the same point, whereas the red motion condition crossed at a much slower speed. These data are consistent with a model of neural processing in which the main visual systems share information. Moreover, they support the notion that presenting stimuli in specific colors may help isolate perceptual pathways for scientific investigation. Given the potential for chromatic cues to target specific visual systems in the performance of dynamic object recognition, exploring these perceptual parameters may help our understanding of human visual processing.