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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
81

Towards a biologically plausible active visual search model /

Zaharescu, Andrei. January 2004 (has links)
Thesis (M.Sc.)--York University, 2004. Graduate Programme in Computer Science. / Typescript. Includes bibliographical references (leaves 118-124). Also available on the Internet. MODE OF ACCESS via web browser by entering the following URL:http://gateway.proquest.com/openurl?url%5Fver=Z39.88-2004&res%5Fdat=xri:pqdiss&rft%5Fval%5Ffmt=info:ofi/fmt:kev:mtx:dissertation&rft%5Fdat=xri:pqdiss:MQ99405
82

A comparative analysis of a neuroscience theory of visual perception and Arnheim's theory of visual perception

Brigham, Diane. January 1982 (has links)
Thesis (M. Ed.)--Kutztown State College. / Source: Masters Abstracts International, Volume: 45-06, page: 2745. Typescript. Includes bibliographical references (leaves 77-79).
83

The impact of hearing loss on the development of visual perception : developmental trends in graphic strategies used to copy the Rey-Osterreith Complex Figure

Eldredge, Nancy Marie 31 October 1984 (has links)
The way in which subjects of different ages copy a complex design gives an indication of the relative levels of visual perception and the related developmental trend of overall cognitive development and left-right hemispheric functioning. The purpose of this study was to investigate the impact of severe to profound hearing loss on the above perceptive abilities. The subjects were chosen from the Oregon State School for the Deaf in Salem and ranged in age from 8 to 17. Additional personal characteristics were documented: sex, degree of hearing loss, age of onset of deafness, cause of deafness, other handicapping conditions, and handedness. The subjects were asked to first copy the Rey-Osterreith Complex Figure and then reproduce it from memory. Scores were derived from the graphic strategies used to initially start both reproductions, complete the initial drawing, and from the accuracy and error measurements. The hypotheses were formulated which allowed cross-tabulations between each of the scores and each of the personal characteristics. The results were subjected to chi-square tests, the Kruskal-Wallis H test, and two- and three-way analyses of variance. Differences were significant at the p < .10 level. The age of the subjects proved to be the most significant factor in the study. The youngest group used adult strategies to complete the drawing, but with more errors than would be expected from adults. Loss of efficiency was noted with the 11-13 year old group and then the expected trend of increased sophistication in perception with advanced age proved true for the three older age groups. It was suggested that the early dependence on vision in lieu of auditory stimulation was responsible for the early strengths of the youngest group. Also right-handed subjects used more complex graphic strategies than did the left-handed subjects. This finding was expected based on other studies concerning cerebral assymetries relative to handedness. The sex of the subject, however, had no main effect on the results. Some interactions among variables were noted. There were no significant differences relative to age, onset, degree of hearing loss, etilogy, or other handicapping conditions. / Graduation date: 1985
84

The influence of visual perception on vehicle rates of closure

Kelling, Nicholas J. 11 July 2006 (has links)
Given the high prevalence of automobile collisions in the United States, the need for collision prevention research is evident. To understand the complete cause of these incidents, it is critical to examine the drivers perception of these situations. This study involved simulations of multiple driving situations variant on luminance, rate of closure, and vehicle motions. Findings suggest changes in brake onset times of younger drivers based on roles of a lead vehicle. Multiple perceptually different rear end collisions caused participants to alter their brake onset times. The brake onset times were used to analyze braking models, including constant distance and constant tau. Additional analysis included correlations of the effects Useful Field of View and Test Anxiety on brake onset times. Effects identified not only aid in the general understanding of driving behavior, but also facilitate the application of driver assistive systems, which are currently being integrated into production vehicles.
85

The neural mechanisms underlying color perception /

Gunther, Karen La Vaughn. January 2002 (has links)
Thesis (Ph. D.)--University of California, San Diego, 2002. / Vita. Includes bibliographical references.
86

Attentional limitation and multiple-target visual search

Thornton, Thomas Lafayette. January 2002 (has links)
Thesis (Ph. D.)--University of Texas at Austin, 2002. / Vita. Includes bibliographical references.
87

Role of temporal texture in visual system exploration with computer simulations /

Su, Ying-fung. January 2010 (has links)
Thesis (M. Phil.)--University of Hong Kong, 2010. / Includes bibliographical references (p. 143-149). Also available in print.
88

Spatial and photometric factors modulating the effect of depth on lightness

Radonjić, Ana, January 2009 (has links)
Thesis (Ph. D.)--Rutgers University, 2009. / "Graduate Program in Psychology." Includes bibliographical references (p. 155-166).
89

Preattentive and attentive processing in visual perception and localization

Chan, Ka-ho, Louis. January 2009 (has links)
Thesis (Ph. D.)--University of Hong Kong, 2009. / Includes bibliographical references (p. 174-181). Also available in print.
90

A parametric study of the teleost nucleus isthmi

Graham, Brett. January 2009 (has links)
Thesis (Ph.D.)--University of Delaware, 2009. / Principal faculty advisor: David P. M. Northmore, Dept. of Psychology. Includes bibliographical references.

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