Document Detail


Task-dependent representation of moving objects within working memory in obstacle avoidance.
MedLine Citation:
PMID:  20843183     Owner:  NLM     Status:  In-Process    
Abstract/OtherAbstract:
Purpose: The purpose of the study was the quantitative analysis of the working memory representation of dynamic objects related to gaze movement behavior. Methods: Eighteen subjects participated in a virtual street-crossing paradigm. The primary task was collisions avoidance. To investigate the representation format, during a sub-task subjects were asked to reconstruct the traffic scene from memory. Results: The distribution of cars positioned during the sub-task reveals a task-dependent (i.e., collision-relevant) representation of about four cars. In contrast, analysis of gaze behavior did not show a preference for collision-prone cars. Conclusion: Subjects avoided collisions efficiently by applying a gaze strategy adequate to create a representation that fulfills the demands of the task. Collision-prone cars are more likely to be represented in memory, but not more likely to be fixated.
Authors:
Gregor Hardiess; Hanspeter A Mallot
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Strabismus     Volume:  18     ISSN:  1744-5132     ISO Abbreviation:  Strabismus     Publication Date:  2010 Sep 
Date Detail:
Created Date:  2010-09-16     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  9310896     Medline TA:  Strabismus     Country:  England    
Other Details:
Languages:  eng     Pagination:  78-82     Citation Subset:  IM    
Affiliation:
Faculty of Biology, Cognitive Neuroscience, University of Tuebingen, Germany. gregor.hardiess@uni-tuebingen.de
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