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Bshary, Redouan
Nom
Bshary, Redouan
Affiliation principale
Fonction
Professeur ordinaire
Email
redouan.bshary@unine.ch
Identifiants
Résultat de la recherche
Voici les éléments 1 - 10 sur 75
- PublicationMétadonnées seulementNew perspectives on marine cleaning mutualism(Enfield: Science Publishers, 2008)
; - PublicationMétadonnées seulementHormonal mechanisms of cooperative behaviour(2010)
; - PublicationMétadonnées seulement
- PublicationMétadonnées seulementMale cleaner wrasses adjust punishment of female partners according to the stakes(2012)
; - PublicationMétadonnées seulementThe "Fish Toilet". The extraordinary behaviour of Ctenochaetus striatus (Acanthuridae)(2008)
; - PublicationMétadonnées seulement
- PublicationMétadonnées seulementAsymmetric cheating opportunities and partner control in a cleaner fish mutualism(2002)
; Grutter, Alexandra S. - PublicationMétadonnées seulement
- PublicationMétadonnées seulementFrom parasitism to mutualism: partner control in asymmetric interactions(2002)
- PublicationMétadonnées seulementEndogenous oxytocin predicts helping and conversation as a function of group membership(2018-7-4)
; ; ; ; Humans cooperate with unrelated individuals to an extent that far outstrips any other species. We also display extreme variation in decisions about whether to cooperate or not, and the mechanisms driving this variation remain an open question across the behavioural sciences. One candidate mechanism underlying this variation in cooperation is the evolutionary ancient neurohormone oxytocin (OT). As current research focuses on artificial administration of OT in asocial tasks, little is known about how the hormone in its naturally occurring state actually impacts behaviour in social interactions. Using a new optimal foraging paradigm, the ‘egg hunt’, we assessed the association of endogenous OT with helping behaviour and conversation. We manipulated players' group membership relative to each other prior to an egg hunt, during which they had repeated opportunities to spontaneously help each other. Results show that endogenous baseline OT predicted helping and conversation type, but crucially as a function of group membership. Higher baseline OT predicted increased helping but only between in-group players, as well as decreased discussion about individuals’ goals between in-group players but conversely more of such discussion between out-group players. Subsequently, behaviour but not conversation during the hunt predicted change in OT, in that out-group members who did not help showed a decrease in OT from baseline levels. In sum, endogenous OT predicts helping behaviour and conversation, importantly as a function of group membership, and this effect occurs in parallel to uniquely human cognitive processes.