Complex spatial updating in simulated low vision

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Publication Type thesis
School or College College of Social & Behavioral Science
Department Psychology
Author Tarampi, Margaret Romaine
Title Complex spatial updating in simulated low vision
Date 2010-02
Description Critical to low vision navigation are the abilities to recover scale and update a three-dimensional representation of space. In order to investigate whether these abilities are present under low vision conditions, we employed the triangulation task of eyesclosed indirect walking to previously viewed targets on the ground. In experiment 1, we explored the feasibility of simulating low-vision more precisely using a novel material. In experiments 2 and 3, we investigated distance perception under normal vision and simulated low vision conditions. Visually directed walking measures, such as the direct and indirect walking tasks, can be used as a measure of absolute distance perception. The indirect walking task requires that the observer continually update the location of the target without any further visual feedback of his/her movement or the target's location. Normally sighted participants were tested monocularly in a degraded vision condition and a normal vision condition on both indirect and direct walking to previously viewed targets. Surprisingly, we found no difference in walked distances between the degraded and normal vision conditions. Our results provide evidence for intact spatial updating even under severely degraded vision conditions, indicating that participants can recover scale and update a three-dimensional representation of space under simulated low vision.
Type Text
Publisher University of Utah
Subject Space perception; Three-dimensional test of visualization skills
Dissertation Institution University of Utah
Dissertation Name MS
Language eng
Relation is Version of Digital reproduction of "Complex spatial updating in simulated low vision" J. Willard Marriott Library Special Collections BF21.5 2010 .T27
Rights Management © Margaret Romaine Tarampi
Format Medium application/pdf
Format Extent 54,162 bytes
Identifier us-etd2,143062
Source Original: University of Utah J. Willard Marriott Library Special Collections
Conversion Specifications Original scanned on Epson GT-30000 as 400 dpi to pdf using ABBYY FineReader 9.0 Professional Edition.
ARK ark:/87278/s6gt62t0
Setname ir_etd
Date Created 2012-04-23
Date Modified 2021-05-06
ID 193481
Reference URL