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Title: Spatial working memory in immersive virtual reality foraging : path organization, traveling distance and search efficiency in humans (Homo sapiens)
Authors: De Lillo, Carlo
Kirby, Melissa
James, Frances C.
First Published: 3-Sep-2013
Publisher: Wiley for American Society of Primatologists
Citation: American Journal of Primatology, 2014, 76 (5), pp. 436-446
Abstract: Search and serial recall tasks were used in the present study to characterize the factors affecting the ability of humans to keep track of a set of spatial locations while traveling in an immersive virtual reality foraging environment. The first experiment required the exhaustive exploration of a set of locations following a procedure previously used with other primate and non-primate species to assess their sensitivity to the geometric arrangement of foraging sites. The second experiment assessed the dependency of search performance on search organization by requiring the participants to recall specific trajectories throughout the foraging space. In the third experiment, the distance between the foraging sites was manipulated in order to contrast the effects of organization and traveling distance on recall accuracy. The results show that humans benefit from the use of organized search patterns when attempting to monitor their travel though either a clustered "patchy" space or a matrix of locations. Their ability to recall a series of locations is dependent on whether the order in which they are explored conformed or did not conform to specific organization principles. Moreover, the relationship between search efficiency and search organization is not confounded by effects of traveling distance. These results indicate that in humans, organizational factors may play a large role in their ability to forage efficiently. The extent to which such dependency may pertain to other primates and could be accounted for by visual organization processes is discussed on the basis of previous studies focused on perceptual grouping, search, and serial recall in non-human species.
DOI Link: 10.1002/ajp.22195
ISSN: 0275-2565
eISSN: 1098-2345
Version: Post-print
Status: Peer-reviewed
Type: Journal Article
Rights: Copyright © 2013 Wiley Periodicals. Deposited with reference to the publisher’s archiving policy available on the SHERPA/RoMEO website.
Appears in Collections:Published Articles, School of Psychology

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