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PLoS One. 2011;6(8):e22656. doi: 10.1371/journal.pone.0022656. Epub 2011 Aug 3.

Modeling users' activity on twitter networks: validation of Dunbar's number.

Author information

1
School of Informatics and Computing, Center for Complex Networks and Systems Research, Indiana University, Bloomington, Indiana, United States of America.

Abstract

Microblogging and mobile devices appear to augment human social capabilities, which raises the question whether they remove cognitive or biological constraints on human communication. In this paper we analyze a dataset of Twitter conversations collected across six months involving 1.7 million individuals and test the theoretical cognitive limit on the number of stable social relationships known as Dunbar's number. We find that the data are in agreement with Dunbar's result; users can entertain a maximum of 100-200 stable relationships. Thus, the 'economy of attention' is limited in the online world by cognitive and biological constraints as predicted by Dunbar's theory. We propose a simple model for users' behavior that includes finite priority queuing and time resources that reproduces the observed social behavior.

PMID:
21826200
PMCID:
PMC3149601
DOI:
10.1371/journal.pone.0022656
[Indexed for MEDLINE]
Free PMC Article

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