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2019 | OriginalPaper | Chapter

Relationship Between Group Performance and Physical Synchrony of the Members in Small-Group Discussion

Authors : Yuko Matsui, Masaru Hikono, Masaki Masuyama, Yuichi Itoh

Published in: Proceedings of the 20th Congress of the International Ergonomics Association (IEA 2018)

Publisher: Springer International Publishing

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Abstract

This paper reports on a study of the relationship between the performance in small-group discussions and the synchrony of body sway of the group members. The study participants were asked to engage in a task that required divergent discussion and a task that required convergent discussion. Seat-cushion devices with pressure sensors, which measure the weight and location of center of gravity of each user continuously, were used to calculate the value of synchrony of body sway among the group members. The relationship between the performance of the respective tasks and the value of synchrony of body sway among the members during the discussions was then evaluated. The results showed that some subjectively evaluated items were significantly correlated either with the task performance or the value of synchrony of body sway, but a correlation between the task performance and the value of synchrony during the task was not found. A more detailed analysis is needed of the direction of shifting the center of gravity of the body and the process of discussion.

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Footnotes
1
First, short-time frequency data were extracted from the body sway data of each participant by a short-time frequency analysis with the Hanning window function (10 s). By repeating this process, time-series amplitude data were generated. Using the standardized maximum amplitude (in x, y, or w) of each participant, the value of synchrony was calculated from the sway data when it was detected that all participants’ body sways were synchronized.
 
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Metadata
Title
Relationship Between Group Performance and Physical Synchrony of the Members in Small-Group Discussion
Authors
Yuko Matsui
Masaru Hikono
Masaki Masuyama
Yuichi Itoh
Copyright Year
2019
DOI
https://doi.org/10.1007/978-3-319-96068-5_74

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