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Heesen, Raphaela

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Heesen, Raphaela
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https://libra.unine.ch/handle/123456789/1109

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  • Publication
    Accès libre
    Evidence of joint commitment in great apes' natural joint actions.
    (2021-12-01T00:00:00Z)
    Heesen, Raphaela 
    ;
    Zuberbühler, Klaus 
    ;
    Bangerter, Adrian 
    ;
    Iglesias, Katia 
    ;
    Rossano, Federico
    ;
    Pajot, Aude
    ;
    Guéry, Jean-Pascal
    ;
    Genty, Emilie 
    Human joint action seems special, as it is grounded in joint commitment-a sense of mutual obligation participants feel towards each other. Comparative research with humans and non-human great apes has typically investigated joint commitment by experimentally interrupting joint actions to study subjects' resumption strategies. However, such experimental interruptions are human-induced, and thus the question remains of how great apes naturally handle interruptions. Here, we focus on naturally occurring interruptions of joint actions, grooming and play, in bonobos and chimpanzees. Similar to humans, both species frequently resumed interrupted joint actions (and the previous behaviours, like grooming the same body part region or playing the same play type) with their previous partners and at the previous location. Yet, the probability of resumption attempts was unaffected by social bonds or rank. Our data suggest that great apes experience something akin to joint commitment, for which we discuss possible evolutionary origins.
  • Publication
    Accès libre
    Assessing joint commitment as a process in great apes.
    (2021-08-20T00:00:00Z)
    Heesen, Raphaela 
    ;
    Bangerter, Adrian 
    ;
    Zuberbühler, Klaus 
    ;
    Iglesias, Katia 
    ;
    Neumann, Christof 
    ;
    Pajot, Aude
    ;
    Perrenoud, Laura
    ;
    Guéry, Jean-Pascal
    ;
    Rossano, Federico
    ;
    Genty, Emilie 
    Many social animals interact jointly, but only humans experience a specific sense of obligation toward their co-participants, a . However, joint commitment is not only a mental state but also a that reveals itself in the coordination efforts deployed during entry and exit phases of joint action. Here, we investigated the presence and duration of such phases in  = 1,242 natural play and grooming interactions of captive chimpanzees and bonobos. The apes frequently exchanged mutual gaze and communicative signals prior to and after engaging in joint activities with conspecifics, demonstrating entry and exit phases comparable to those of human joint activities. Although rank effects were less clear, phases in bonobos were more moderated by friendship compared to phases in chimpanzees, suggesting bonobos were more likely to reflect patterns analogous to human "face management". This suggests that joint commitment as process was already present in our last common ancestor with .
  • Publication
    Accès libre