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Title page for ETD etd-10092007-141523


Type of Document Dissertation
Author Nyquist, Jeff
Author's Email Address j.nyquist@vanderbilt.edu
URN etd-10092007-141523
Title Perceptual Training Yields Rapid Improvements in Visually Impaired Youth
Degree PhD
Department Psychology
Advisory Committee
Advisor Name Title
Dan Levin Committee Co-Chair
Joseph Lappin Committee Co-Chair
Adriane Seiffert Committee Member
Ann Corn Committee Member
Tom Carr Committee Member
Keywords
  • Peripheral vision
  • Low vision -- Patients -- Rehabilitation
  • Perceptual Training
  • Children
  • Rehabilitation
  • Psychophysics
  • Video games -- Therapeutic use
  • Youth with disabilities -- Rehabilitation
  • Visual training
  • Visual perception
Date of Defense 2007-08-10
Availability unrestricted
Abstract
Visual access to environmental information requires coordinated visual processes over a wide field of view, in both central and peripheral regions. Individuals with impaired vision, however, seem to under-utilize their peripheral fields, even when their specific etiology does not indicate involvement of the peripheral retina. This suggests that their visual systems are not effectively processing available visual information. Recent studies have shown that typically-sighted adults can enhance visual processing across a wide field of view after playing action video games. Low vision individuals may particularly enhance their peripheral processing after similar training. The current study further explores the generality of such perceptual training by training a special population of low vision children either with an action video game or a simplified, psychophysical training task. Both training tasks enhanced low vision performance on a range of visual tasks. Low vision participants did exhibit graded improvement from center to periphery, with larger enhancements in the far periphery.
Files
  Filename       Size       Approximate Download Time (Hours:Minutes:Seconds) 
 
 28.8 Modem   56K Modem   ISDN (64 Kb)   ISDN (128 Kb)   Higher-speed Access 
  dissertation_FINAL.pdf 580.50 Kb 00:02:41 00:01:22 00:01:12 00:00:36 00:00:03

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