Abstract
Social interactions are dynamic and unfold over time. To make sense of social interactions, people must aggregate sequential information into summary, global evaluations. But how do people do this? Here, to address this question, we conducted nine studies (N = 1,583) using a diverse set of stimuli. Our focus was a central aspect of social interaction—namely, the evaluation of others’ emotional responses. The results suggest that when aggregating sequences of images and videos expressing varying degrees of emotion, perceivers overestimate the sequence’s average emotional intensity. This tendency for overestimation is driven by stronger memory of more emotional expressions. A computational model supports this account and shows that amplification cannot be explained only by nonlinear perception of individual exemplars. Our results demonstrate an amplification effect in the perception of sequential emotional information, which may have implications for the many types of social interactions that involve repeated emotion estimation.
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Data availability
The data for Studies 1–8 are available at https://osf.io/krgcv/. The data for Study 9 are available at https://github.com/StanfordSocialNeuroscienceLab/SEND.
Code availability
The code for the analysis of Studies 1–8 is available at https://osf.io/krgcv/. The code for the tasks can be found at https://github.com/GoldenbergLab/task-sequential-faces-emotion-estimationMe.
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Acknowledgements
J.S. is supported in part by the German Academic Scholarship Foundation (Promotionsförderung der Studienstiftung des deutschen Volkes) and in part by NIH grant no. 1R01MH112560-01. D.C.O. is supported in part by a Singapore Ministry of Education Academic Research Fund Tier 1 grant. T.F.B. is supported in part by NSF CAREER grant no. BCS-1653457. Finally, M.M.R. is supported by the National Research Service Award fellowship from the National Institute of Health no. 1F32MH127823-01. The funders had no role in study design, data collection and analysis, decision to publish or preparation of the manuscript.
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A.G., J.S. and Z.H. conceived and designed the experiments. A.G. and J.S. performed the experiments (Studies 1–8), analysed the data for these experiments and wrote the paper. D.C.O. and J.Z. designed and ran Study 9, and D.C.O. provided an initial analysis of the data. D.C.O. and J.Z. reviewed the paper. T.F.B. and M.M.R. analysed the data of Study 8, conducted the computational model of that study and reviewed the paper. D.L., T.D.S. and J.J.G. were involved in writing and reviewing the manuscript.
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The authors declare no competing interests. The funders had no role in study design, data collection and analysis, decision to publish or preparation of the manuscript.
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Goldenberg, A., Schöne, J., Huang, Z. et al. Amplification in the evaluation of multiple emotional expressions over time. Nat Hum Behav 6, 1408–1416 (2022). https://doi.org/10.1038/s41562-022-01390-y
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DOI: https://doi.org/10.1038/s41562-022-01390-y