| Limits of spatial attention in three-dimensional space and dual-task driving performance. | |
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MedLine Citation:
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PMID: 21094336 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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The present study examined the limits of spatial attention while performing two driving relevant tasks that varied in depth. The first task was to maintain a fixed headway distance behind a lead vehicle that varied speed. The second task was to detect a light-change target in an array of lights located above the roadway. In Experiment 1 the light detection task required drivers to encode color and location. The results indicated that reaction time to detect a light-change target increased and accuracy decreased as a function of the horizontal location of the light-change target and as a function of the distance from the driver. In a second experiment the light change task was changed to a singleton search (detect the onset of a yellow light) and the workload of the car following task was systematically varied. The results of Experiment 2 indicated that RT increased as a function of task workload, the 2D position of the light-change target and the distance of the light-change target. A multiple regression analysis indicated that the effect of distance on light detection performance was not due to changes in the projected size of the light target. In Experiment 3 we found that the distance effect in detecting a light change could not be explained by the location of eye fixations. The results demonstrate that when drivers attend to a roadway scene attention is limited in three-dimensional space. These results have important implications for developing tests for assessing crash risk among drivers as well as the design of in vehicle technologies such as head-up displays. |
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Authors:
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George J Andersen; Rui Ni; Zheng Bian; Julie Kang |
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Publication Detail:
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Type: Journal Article; Research Support, N.I.H., Extramural Date: 2010-11-01 |
Journal Detail:
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Title: Accident; analysis and prevention Volume: 43 ISSN: 1879-2057 ISO Abbreviation: Accid Anal Prev Publication Date: 2011 Jan |
Date Detail:
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Created Date: 2010-11-24 Completed Date: 2011-03-29 Revised Date: 2012-01-02 |
Medline Journal Info:
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Nlm Unique ID: 1254476 Medline TA: Accid Anal Prev Country: England |
Other Details:
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Languages: eng Pagination: 381-90 Citation Subset: IM |
Copyright Information:
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Copyright © 2010 Elsevier Ltd. All rights reserved. |
Affiliation:
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Department of Psychology, University of California, Riverside, Riverside, CA 92521, United States. andersen@ucr.edu |
Export Citation:
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| MeSH Terms | |
Descriptor/Qualifier:
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Acceleration Attention* Automobile Driving / psychology* Color Perception Computer Simulation* Depth Perception* Distance Perception Environment Design* Female Humans Male Orientation Reaction Time Space Perception* User-Computer Interface* Young Adult |
| Grant Support | |
ID/Acronym/Agency:
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EY18334/EY/NEI NIH HHS; R01 AG031941-02/AG/NIA NIH HHS; R01 AG031941-02S1/AG/NIA NIH HHS; R01 AG031941-03/AG/NIA NIH HHS; R01 EY018334-03/EY/NEI NIH HHS; R01 EY018334-04/EY/NEI NIH HHS |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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