Japanese Journal of Social Psychology
Online ISSN : 2189-1338
Print ISSN : 0916-1503
ISSN-L : 0916-1503
The effect of social exclusion on the perception of the similarity of group members
Kenta TsumuraKoji Murata
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2016 Volume 32 Issue 1 Pages 1-9


After being socially excluded, people try to reconnect with others. Previous research indicated that excluded people show an enhanced ability to distinguish between-category differences relative to within-category differences of group members. It is important that excluded people distinguish in-group members from out-group members to avoid making an unnecessary effort for social reconnection or further ostracism, because in-group members afford more opportunities to reconnect compared with out-group members. We hypothesized that this perceptual change would heighten the perception of the similarity of group members. Participants were included or excluded by Cyberball (a ball-tossing computer game) and constructed imagined histograms of the perceived distribution of members of four groups across a trait dimension. As predicted, social exclusion heightened the participants’ perception of the similarity of group members.

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© 2016 The Japanese Society of Social Psychology
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