In this paper we present a model for action preparation and decision making in cooperative tasks that is inspired by recent experimental findings about the neurocognitive mechanisms supporting joint action in humans. It implements the coordination of actions and goals among the partners as a dynamic process that integrates contextual cues, shared task knowledge and predicted outcome of others’ motor behavior. The control architecture is formalized by a system of coupled dynamic neural fields representing a distributed network of local but connected neural populations. Different pools of neurons encode task-relevant information about action means, task goals and context in the form of self-sustained activation pat- terns. These patterns are triggered by input from connected populations and evolve continuously in time under the influence of recurrent interactions. The dynamic model of joint action is evaluated in a task in which a robot and a human jointly construct a toy object. We show that the highly context sensitive mapping from action observation onto appropriate complementary actions allows coping with dynamically changing joint action situations. ; The present research was conducted in the context of the fp6-IST2 EU-IP Project JAST (Project No. 003747) and partly financed by the FCT grants POCl/V.5/A0119/2005 and CONC-REEQ/17/2001. We would like to thank Profs. Harold Bekkering and Ruud Meulenbroek for the numerous discussions, and Emanuel Sousa, Flora Ferreira, Nzoji Hipolito, Rui Silva and Toni Machado for their help during the robotic experiments. We also thank the anonymous reviewers for their insightful comments and feedback on how to improve the manuscript.


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    Title :

    Neuro-cognitive mechanisms of decision making in joint action: A human-robot interaction study


    Contributors:

    Publication date :

    2011-01-03


    Remarks:

    21208673



    Type of media :

    Article (Journal)


    Type of material :

    Electronic Resource


    Language :

    English



    Classification :

    DDC:    629



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