Oded Ritov

Oded Ritov

@oded-ritov.bsky.social

PhD candidate in psychology at Berkeley. Interested in emotions, morality, and evolution.

170 followers317 following9 posts

Oded Ritov reposted

Taylor Mitchell Brown
@tmitchellbrown.bsky.social

Researchers just found chimps are less likely to steal from their friends. In some trials, good chimp pals refused to engage with the experiment at all. The new work reveals novel norms around fairness and friendship in our hairy ape cousins. #Primatology #BioAnth 🧪🧪 New at @nytimes.com

nytimes.comChimps Steal Less Often From Their Friends, Even When Offered Pineapple (Gift Article)The discovery may hint at the roots of human norms around fairness and friendship.
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Oded Ritov
@oded-ritov.bsky.social

This is the first study to show that chimpanzee friendship is not just about prosocial behavior, but also about inhibiting antisocial behavior, and suggests that there may be expectations from both sides of the friendship.

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Oded Ritov
@oded-ritov.bsky.social

Thieves stole more often from non-friends than from friends. We also looked at the victims’ emotional response; victims were initially angrier at friends, but dialed down their responses from trial to trial. When non-friends stole from them, they stayed moderately upset throughout.

Oded Ritov
@oded-ritov.bsky.social

We interpret this through two processes: chimpanzees have higher expectations from their friends, and get angry when these are violated; but are ultimately motivated to maintain their friendship, and therefore inhibit this response.

Oded Ritov
@oded-ritov.bsky.social

We had pairs of chimpanzees participate in a task where the “thief” could steal a tray with pieces of pineapple that the “victim” was feeding on. Each victim participated once with their friend, and once with a neutral groupmate.

Oded Ritov reposted

Prof Nichola Raihani
@nicholaraihani.bsky.social

New paper: in what we think is one of the largest meta-analyses of animal behaviour, we find no evidence for inequity aversion in nonhumans (in accept/reject paradigms) royalsocietypublishing.org/doi/10.1098/... Led by Oded Ritov & with @engelmann.bsky.social & Christoph Völter

royalsocietypublishing.orgNo evidence for inequity aversion in non-human animals: a meta-analysis of accept/reject paradigms | Proceedings of the Royal Society B: Biological SciencesDisadvantageous inequity aversion (IA), a negative response to receiving less than others, is a key building block of the human sense of fairness. While some theorize that IA is shared by species acro...

Oded Ritov reposted

Christoph Völter
@christophvoelter.bsky.social

No evidence for inequity aversion in non-human animals: a #meta-analysis of accept/reject paradigms royalsocietypublishing.org/doi/10.1098/... New paper led by Oded Ritov and w/ @nicholaraihani.bsky.social and Jan Engelmann.

royalsocietypublishing.orgNo evidence for inequity aversion in non-human animals: a meta-analysis of accept/reject paradigms | Proceedings of the Royal Society B: Biological SciencesDisadvantageous inequity aversion (IA), a negative response to receiving less than others, is a key building block of the human sense of fairness. While some theorize that IA is shared by species acro...

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