| Human foraging behavior in a virtual environment. | |
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MedLine Citation:
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PMID: 15376803 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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We have developed an experimental platform that allows a large number of human participants to interact in real time within a common virtual world. Within this environment, human participants foraged for resources distributed in two spatially separated pools. In addition to varying the relative replenishment rate for the two pools (50-50, 65-35, or 80-20), we manipulated whether the participants could see each other and the entire resource distribution or had their vision restricted to resources at their own location. Two empirical deviations from an optimal distribution of the participants were found. First, the participants were more scattered within a resource pool than the resources were themselves. Second, there was systematic underutilization of the richer pool. For example, the participants distributed themselves 73% and 27% to resource pools that had replenishment rates of 80% and 20%, respectively. In addition, there were oscillations in the harvesting rate of the pools across time, revealed by a Fourier analysis with prominent power near 50 sec per cycle. The suboptimalities and oscillations were more apparent when the locations of the participants and the food were not visible. Individual participant knowledge thus affects the efficiency with which a population of participants harvests resources. |
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Authors:
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Robert L Goldstone; Benjamin C Ashpole |
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Publication Detail:
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Type: Journal Article; Research Support, U.S. Gov't, Non-P.H.S.; Research Support, U.S. Gov't, P.H.S. |
Journal Detail:
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Title: Psychonomic bulletin & review Volume: 11 ISSN: 1069-9384 ISO Abbreviation: Psychon Bull Rev Publication Date: 2004 Jun |
Date Detail:
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Created Date: 2004-09-20 Completed Date: 2004-12-14 Revised Date: 2007-11-14 |
Medline Journal Info:
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Nlm Unique ID: 9502924 Medline TA: Psychon Bull Rev Country: United States |
Other Details:
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Languages: eng Pagination: 508-14 Citation Subset: IM |
Affiliation:
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Psychology Department, Indiana University, Bloomington, IN 47405, USA. rgoldsto@indiana.edu |
Export Citation:
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APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
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Feeding Behavior* Humans Models, Statistical User-Computer Interface* Visual Perception |
| Grant Support | |
ID/Acronym/Agency:
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MH56871/MH/NIMH NIH HHS |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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