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Anna Preis
Researcher at Max Planck Society
Publications - 27
Citations - 719
Anna Preis is an academic researcher from Max Planck Society. The author has contributed to research in topics: Dominance hierarchy & Aggression. The author has an hindex of 14, co-authored 26 publications receiving 479 citations.
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Oxytocin reactivity during intergroup conflict in wild chimpanzees.
TL;DR: The oxytocinergic system, potentially engendering cohesion and cooperation when facing an out-group threat, may not be uniquely human but rather a mechanism with evolutionary roots shared by the authors' last common ancestor with chimpanzees, likely expediting fitness gains during intergroup conflict.
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Social bonds facilitate cooperative resource sharing in wild chimpanzees
Liran Samuni,Anna Preis,Alexander Mielke,Tobias Deschner,Roman M. Wittig,Catherine Crockford +5 more
TL;DR: It is concluded that the emotional connection inherent in social bonds was a key factor determining sharing patterns, with the oxytocinergic system potentially facilitating long-term cooperative exchanges in chimpanzees.
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Reward of labor coordination and hunting success in wild chimpanzees
TL;DR: It is concluded that chimpanzee hunting is cooperative, likely facilitated by behavioral and neuroendocrine mechanisms of coordination and reward, and meat sharing behavior and oxytocin in wild chimpanzees is examined, elucidating the mechanism facilitating cooperation.
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Bystanders intervene to impede grooming in Western chimpanzees and sooty mangabeys
Alexander Mielke,Liran Samuni,Anna Preis,Jan F. Gogarten,Catherine Crockford,Roman M. Wittig +5 more
TL;DR: Bystanders in Western chimpanzees and sooty mangabeys appear to monitor grooming interactions and intervene based on their own dominance rank and social relationships, as well as triadic awareness of the relationship between groomers.
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Cortisol and oxytocin show independent activity during chimpanzee intergroup conflict.
TL;DR: Results indicate independent secretion of oxytocin and cortisol during chimpanzee intergroup conflict, emphasizing that stressor exposure in this context is not the main trigger of oxyobjection, and increasing levels of out-group risk showed no significant variation.