Modeling dominance effects on nonverbal behaviors using granger causality

Authors:
Kyriaki Kalimeri;Bruno Lepri;Oya Aran;Dinesh Babu Jayagopi;Daniel Gatica-Perez;Fabio Pianesi
Affiliations:
University of Trento & Bruno Kessler Foundation, Trento, Italy;Bruno Kessler Foundation, Trento, Italy & Massachusettes Institute of Technology, Cambridge, MA, USA;Idiap Research Institute, Lausanne, Switzerland;Idiap Research Institute, Lausanne, Switzerland;Idiap Research Institute & Ecole Polytechnique Federal de Lausanne, Lausanne, Switzerland;Bruno Kessler Foundation, Trento, Italy
Venue:
Proceedings of the 14th ACM international conference on Multimodal interaction
Year:
2012

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Abstract

In this paper we modeled the effects that dominant people might induce on the nonverbal behavior (speech energy and body motion) of the other meeting participants using Granger causality technique. Our initial hypothesis that more dominant people have generalized higher influence was not validated when using the DOME-AMI corpus as data source. However, from the correlational analysis some interesting patterns emerged: contradicting our initial hypothesis dominant individuals are not accounting for the majority of the causal flow in a social interaction. Moreover, they seem to have more intense causal effects as their causal density was significantly higher. Finally dominant individuals tend to respond to the causal effects more often with complementarity than with mimicry.