Journal
JOURNAL OF EXPERIMENTAL PSYCHOLOGY-GENERAL
Volume 137, Issue 3, Pages 422-433Publisher
AMER PSYCHOLOGICAL ASSOC
DOI: 10.1037/a0012798
Keywords
innovation; social network; groups; diffusion
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A novel paradigm was developed to study the behavior of groups of networked people searching a problem space. The authors examined how different network structures affect the propagation of information in laboratory-created groups. Participants made numerical guesses and received scores that were also made available to their neighbors in the network. The networks were compared on speed of discovery and convergence on the optimal solution. One experiment showed that individuals within a group tend to converge on similar solutions even when there is an equally valid alternative solution. Two additional studies demonstrated that the optimal network structure depends on the problem space being explored, with networks that incorporate spatially based cliques having an advantage for problems that benefit from broad exploration, and networks with greater long-range connectivity having an advantage for problems requiring less exploration.
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