caa a22 4500 605541663 CHVBK 20210128100917.0 cr unu---uuuuu 210128e20150101xx s 000 0 eng 10.1007/s10071-014-0793-5 doi (NATIONALLICENCE)springer-10.1007/s10071-014-0793-5 Training experience in gestures affects the display of social gaze in baboons' communication with a human [Elektronische Daten] [Marie Bourjade, Charlotte Canteloup, Adrien Meguerditchian, Jacques Vauclair, Florence Gaunet] Gaze behaviour, notably the alternation of gaze between distal objects and social partners that accompanies primates' gestural communication is considered a standard indicator of intentionality. However, the developmental precursors of gaze behaviour in primates' communication are not well understood. Here, we capitalized on the training in gestures dispensed to olive baboons (Papio anubis) as a way of manipulating individual communicative experience with humans. We aimed to delineate the effects of such a training experience on gaze behaviour displayed by the monkeys in relation with gestural requests. Using a food-requesting paradigm, we compared subjects trained in requesting gestures (i.e. trained subjects) to naïve subjects (i.e. control subjects) for their occurrences of (1) gaze behaviour, (2) requesting gestures and (3) temporal combination of gaze alternation with gestures. We found that training did not affect the frequencies of looking at the human's face, looking at food or alternating gaze. Hence, social gaze behaviour occurs independently from the amount of communicative experience with humans. However, trained baboons—gesturing more than control subjects—exhibited most gaze alternation combined with gestures, whereas control baboons did not. By reinforcing the display of gaze alternation along with gestures, we suggest that training may have served to enhance the communicative function of hand gestures. Finally, this study brings the first quantitative report of monkeys producing requesting gestures without explicit training by humans (controls). These results may open a window on the developmental mechanisms (i.e. incidental learning vs. training) underpinning gestural intentional communication in primates. Springer-Verlag Berlin Heidelberg, 2014 Gaze alternation nationallicence Requesting gestures nationallicence Referential communication nationallicence Joint attention nationallicence Intentionality nationallicence Nonhuman primates nationallicence Bourjade Marie Laboratoire de Psychologie Cognitive (UMR 7290), Centre National de la Recherche Scientifique (CNRS), Aix-Marseille Université, 3 Place Victor Hugo, 13331, Marseille Cedex 3, France aut Canteloup Charlotte Station de Primatologie (UPS 846), Centre National de la Recherche Scientifique, Rousset, France aut Meguerditchian Adrien Laboratoire de Psychologie Cognitive (UMR 7290), Centre National de la Recherche Scientifique (CNRS), Aix-Marseille Université, 3 Place Victor Hugo, 13331, Marseille Cedex 3, France aut Vauclair Jacques Research Centre in the Psychology of Cognition, Language and Emotion, Aix-Marseille Université, Aix-en-Provence, France aut Gaunet Florence Laboratoire de Psychologie Cognitive (UMR 7290), Centre National de la Recherche Scientifique (CNRS), Aix-Marseille Université, 3 Place Victor Hugo, 13331, Marseille Cedex 3, France aut Animal Cognition Springer Berlin Heidelberg 18/1(2015-01-01), 239-250 1435-9448 18:1<239 2015 18 10071 https://doi.org/10.1007/s10071-014-0793-5 text/html Onlinezugriff via DOI BK010053 XK010053 XK010000 Metadata rights reserved Springer special CC-BY-NC licence nationallicence 1 research-article jats NATIONALLICENCE NATIONALLICENCE NL-springer NATIONALLICENCE 856 40 https://doi.org/10.1007/s10071-014-0793-5 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Bourjade Marie Laboratoire de Psychologie Cognitive (UMR 7290), Centre National de la Recherche Scientifique (CNRS), Aix-Marseille Université, 3 Place Victor Hugo, 13331, Marseille Cedex 3, France aut NATIONALLICENCE 700 1- Canteloup Charlotte Station de Primatologie (UPS 846), Centre National de la Recherche Scientifique, Rousset, France aut NATIONALLICENCE 700 1- Meguerditchian Adrien Laboratoire de Psychologie Cognitive (UMR 7290), Centre National de la Recherche Scientifique (CNRS), Aix-Marseille Université, 3 Place Victor Hugo, 13331, Marseille Cedex 3, France aut NATIONALLICENCE 700 1- Vauclair Jacques Research Centre in the Psychology of Cognition, Language and Emotion, Aix-Marseille Université, Aix-en-Provence, France aut NATIONALLICENCE 700 1- Gaunet Florence Laboratoire de Psychologie Cognitive (UMR 7290), Centre National de la Recherche Scientifique (CNRS), Aix-Marseille Université, 3 Place Victor Hugo, 13331, Marseille Cedex 3, France aut NATIONALLICENCE 773 0- Animal Cognition Springer Berlin Heidelberg 18/1(2015-01-01), 239-250 1435-9448 18:1<239 2015 18 10071