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dc.contributor.authorAledavood, Talayeh*
dc.contributor.authorLópez, Eduardo*
dc.contributor.authorRoberts, Sam G. B.*
dc.contributor.authorReed-Tsochas, Felix*
dc.contributor.authorMoro, Esteban*
dc.contributor.authorDunbar, Robin I. M.*
dc.contributor.authorSaramäki, Jari*
dc.date.accessioned2016-02-25T09:54:20Zen
dc.date.available2016-02-25T09:54:20Zen
dc.date.issued2015-09-21en
dc.identifier.citationAledavood, T., López, E., Roberts, S. G. B., Reed-Tsochas, F., Moro, E., Dunbar, R. I. M., & Saramäki, J. (2015). Daily rhythms in mobile telephone communication. PLoS ONE, 10(9), e0138098. DOI: 10.1371/journal.pone.0138098en
dc.identifier.issn1932-6203en
dc.identifier.doi10.1371/journal.pone.0138098en
dc.identifier.urihttp://hdl.handle.net/10034/597194en
dc.description.abstractCircadian rhythms are known to be important drivers of human activity and the recent availability of electronic records of human behaviour has provided fine-grained data of temporal patterns of activity on a large scale. Further, questionnaire studies have identified important individual differences in circadian rhythms, with people broadly categorised into morning-like or evening-like individuals. However, little is known about the social aspects of these circadian rhythms, or how they vary across individuals. In this study we use a unique 18-month dataset that combines mobile phone calls and questionnaire data to examine individual differences in the daily rhythms of mobile phone activity. We demonstrate clear individual differences in daily patterns of phone calls, and show that these individual differences are persistent despite a high degree of turnover in the individuals’ social networks. Further, women’s calls were longer than men’s calls, especially during the evening and at night, and these calls were typically focused on a small number of emotionally intense relationships. These results demonstrate that individual differences in circadian rhythms are not just related to broad patterns of morningness and eveningness, but have a strong social component, in directing phone calls to specific individuals at specific times of day.
dc.language.isoenen
dc.publisherPublic library of Scienceen
dc.relation.urlhttp://journals.plos.org/plosone/article?id=10.1371/journal.pone.0138098en
dc.subjectCircadian rhythmsen
dc.subjectmobile telephoneen
dc.titleDaily rhythms in mobile telephone communicationen
dc.typeArticleen
dc.contributor.departmentAalto University School of Science; University of Oxford; University of Chester; Universidad Carlos III de Madriden
dc.identifier.journalPLOS ONEen
dc.internal.reviewer-noteSally to process 22/02/2016en
rioxxterms.versionofrecordhttps://doi.org/10.1371/journal.pone.0138098
html.description.abstractCircadian rhythms are known to be important drivers of human activity and the recent availability of electronic records of human behaviour has provided fine-grained data of temporal patterns of activity on a large scale. Further, questionnaire studies have identified important individual differences in circadian rhythms, with people broadly categorised into morning-like or evening-like individuals. However, little is known about the social aspects of these circadian rhythms, or how they vary across individuals. In this study we use a unique 18-month dataset that combines mobile phone calls and questionnaire data to examine individual differences in the daily rhythms of mobile phone activity. We demonstrate clear individual differences in daily patterns of phone calls, and show that these individual differences are persistent despite a high degree of turnover in the individuals’ social networks. Further, women’s calls were longer than men’s calls, especially during the evening and at night, and these calls were typically focused on a small number of emotionally intense relationships. These results demonstrate that individual differences in circadian rhythms are not just related to broad patterns of morningness and eveningness, but have a strong social component, in directing phone calls to specific individuals at specific times of day.


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