Evolutive body interaction between a human and a virtual character. Theoretical model proposition and evaluation within a fitness exergame

Evolutive body interaction between a human and a virtual character. Theoretical model proposition and evaluation within a fitness exergame

Pierre De Loor Romain Richard Elisabetta Bevacqua 

Lab-STICC, ENIB, UBL, Centre Européen de Réalité Virtuelle Brest, FRANCE.

Corresponding Author Email: 
deloor@enib.fr; bevacqua@enib.fr
31 October 2017
| Citation



This paper presents an evaluation of a decision model for adaptive and evolutive body interaction between a human and a virtual agent. The theoretical bases, the aliveness metaphor and the notion of coupling, are presented and the model is briefly described. We illustrate and discuss an experiment we conducted to evaluate the model applied to the context of a fitness exergame. The results of the experiment show that our model can generate, for virtual agents, an adaptive body behavior comparable to that a human would perform in context where the user has to pay attention to the agent. This adaptive behavior improves the perception of the agent in terms of co-presence and game experience. but not in terms of believability.


human-agent body interaction, coupling, decision model

1. Introduction
2. État de l’art
3. Modèle de décision basé sur la métaphore du vivant
4. Évaluation
5. Conclusion et perspectives

Ce travail a été financé par le projet ANR INGREDIBLE : ANR-12-CORD-001 (http:/ /www.ingredible.fr).


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