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Jan Engelmann

@janengelmann.bsky.social
193 followers 103 following 13 posts

Comparative and Developmental Psychologist at UC Berkeley and Director of the Social Origins Lab: socialoriginslab.com

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Reposted by Jan Engelmann
Oded Ritov @oded-ritov.bsky.social · 5h
Do chimpanzees value their friendships enough to pass on juicy pineapple? In our new paper, out now at Evolution and Human Behavior, we find that they do! www.sciencedirect.com/science/arti...
Screenshot of the paper header on ScienceDirect. Evolution and Human Behavior, Volume 47, Issue 6, November 2026, article 106948. Title: "Chimpanzees steal less from their friends and expect them to do the same." Authors: Oded Ritov, Christoph J. Völter, Liran Samuni, Avi Benozio, Dacher Keltner, Jan M. Engelmann, Laura S. Lewis, Esther Herrmann.
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Hanna @hanna-schleihauf.bsky.social · 14/08/2026
Reason-giving isn't a Western invention. New in Child Development: 360 children aged 5–9 in China, Kenya & the US spontaneously gave each other reasons to settle disagreements — and did so more when they disagreed than when they agreed. academic.oup.com/chidev/advan...
academic.oup.com
Children across diverse societies exchange reasons to resolve disagreements
Abstract. The exchange of reasons in rational discourse is crucial for resolving disagreements. In a preregistered cross-cultural study, 360 5- to 9-year-o
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Yarrow Dunham @yarrowdunham.bsky.social · 23/07/2026
Yale is hiring in developmental psychology (open rank )! We're especially interested in complementing and broadening our area, including via somewhat less traditionally central such as cross-cultural and comparative approaches. Feel free to reach out with questions!
nam12.safelinks.protection.outlook.com
Apply - Interfolio {{$ctrl.$state.data.pageTitle}} - Apply - Interfolio
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Brian Wood @woodbrian.bsky.social · 09/07/2026
"Zoo settings don't just remove confounds — they create new ones." A paper worth reading. goo.gl/scholar/FT8aKg @zannaclay.bsky.social @levedacheng.bsky.social eng.bsky.social @janengelmann.bsky.social @ctennie.bsky.social @northernlimitpt.bsky.social @romanwittig.bsky.social @lirsamuni.bsky.social
goo.gl
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Mariam Aly @mariamaly.bsky.social · 26/05/2026
Which factors are more vs. less important in predicting memory? We systematically investigated the contributions of image memorability, valence, arousal, attention, and test delay. Image memorability was the strongest predictor of memory. Proud of this work led by @hartwakeland.bsky.social!
osf.io
OSF
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Alex Chan @alexhhchan.bsky.social · 28/04/2026
My supervisor Kano is advertising multiple open positions! Check out the doc :) Open Positions @ Kyushu Univ (Kano Lab) Postdoc / Tech staff / PhD-MSc Eye-gaze & social cognition (exp + field + CV) 🎥 youtu.be/rXT-yjQzJxU 📁 docs.google.com/document/d/1... @animalopps.bsky.social
youtu.be
groupdemo kyushu 04132026
YouTube video by 狩野文浩
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Manuel Bohn @elmanubohn.bsky.social · 16/04/2026
What are children's *naturalistic* everyday experiences like? Nele's paper presents a crucial resource (100+h of 🎥 w/ annotations) that will help us to build the tools we need to study what it's like to be a child in the wild. 🙏to @jacobsfoundation.bsky.social @maxplanck.de @dfg.de for funding!
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Ammie Kalan @ammiekalan.bsky.social · 26/03/2026
It took 3 years to complete this paper and it was difficult(!) but I think both @ctennie.bsky.social and I are grateful for the varied perspectives we gained as a result of this collaboration. If you work on ape culture, hopefully you'll feel the same doi.org/10.1017/ehs.... [Opens in a new window]
doi.org
Brokering peace in the ape (culture) wars | Evolutionary Human Sciences | Cambridge Core
Brokering peace in the ape (culture) wars - Volume 8
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Sean Carroll @seanmcarroll.bsky.social · 09/03/2026
Mindscape 346 | Erica Cartmill on How Human and Animal Minds Think and Play. #MindscapePodcast www.preposterousuniverse.com/podcast/2026...
Title card for Mindscape podcast with Erica Cartmill.
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Christoph Völter @christophvoelter.bsky.social · 06/03/2026
Far too long in the making.. but finally out in #AnimalBehaviour @asab.org: Orang-utans and chimpanzees #cooperate strategically based on the partner’s incentives. doi.org/10.1016/j.an... w/ @elisafelsche.bsky.social , Josep Call & @federicorossano.bsky.social
Set-up of experiment 2. The tool giver was placed in enclosure 3 (middle), whereas the tool recipient was placed in enclosure 4 (right). The illustration depicts the configuration in which the social and nonsocial apparatuses for both individuals were baited with high-value rewards.
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Laura Simone Lewis @laurasimonelewis.bsky.social · 25/02/2026
New article out exploring great ape name recognition! We find partial evidence that zoo-living chimps & bonobos know each other's names 👀 Huge thanks to Animal Behavior and Cognition (a great open-access journal) & co-authors for your collaboration!🎉🐵 unsvr1.com/web/abc/work...
unsvr1.com
Do Great Apes Know Each Other's Names? Probing Great Ape Comprehension of Social Vocal Labels — Animal Behavior and Cognition
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Society for Philosophy and Psychology @socphilpsych.bsky.social · 18/02/2026
🚨From Joshua Confer, Allison Champ, Dorsa Amir, Hanna Schleihauf & Jan Engelmann: Group membership biases children’s evaluation of evidence
nature.com
Group membership biases children’s evaluation of evidence - Nature Communications
People often form beliefs and reason about evidence as members of social groups. Here, the authors show that group membership biases even young children’s evaluation of evidence, leading them to adopt...
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Jay Van Bavel, PhD @jayvanbavel.bsky.social · 16/02/2026
People form beliefs not only as individual agents, but as members of social groups. Children (4-6 years old) who belonged to a group were more convinced by evidence that supported their ingroup’s belief (and were less convinced by evidence that opposed their ingroup): www.nature.com/articles/s41...
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Dorsa Amir @dorsaamir.bsky.social · 07/02/2026
Thrilled to share our latest paper, out now in Science Advances! We explored the development of cooperative behaviors — fairness, trustworthiness, forgiveness, & honesty —  across five societies, culturally contextualizing them & seeing how they correlate. (1/5) www.science.org/doi/full/10....
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joshuaconfer.bsky.social @joshuaconfer.bsky.social · 05/02/2026
Why do otherwise rational people disagree about the same evidence? Our new paper finds that group membership is a deeply rooted influence on how we form beliefs, leading even preschoolers to bias their evidential standards and form inaccurate beliefs. www.nature.com/articles/s41...
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Chris Krupenye @chriskrupenye.bsky.social · 05/02/2026
Imagination in bonobos! I am thrilled to share a new paper w/ Amalia Bastos, out now in @science.org We provide the first experimental evidence that a nonhuman animal can follow along a pretend scenario & track imaginary objects. Work w/ Kanzi, the bonobo, at Ape Initiative youtu.be/NUSHcQQz2Ko
youtu.be
Apes Share Human Ability to Imagine
YouTube video by Johns Hopkins University
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Jan Engelmann @janengelmann.bsky.social · 03/02/2026
Thank you so much @evolutionsoup.bsky.social for talking to me about our recent research on chimpanzee belief revision and metacognition! www.youtube.com/watch?v=D-li...
youtube.com
The Chimpanzee Metacognition Experiment ~ with PROFESSOR JAN ENGELMANN
YouTube video by Evolution Soup
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Kirsten Sutherland @kirstensutherland.bsky.social · 23/01/2026
Excited to share this work done with @alex-primate.bsky.social and Daniel Haun @mpi-eva-leipzig.bsky.social (the first publication from my PhD!), where we found that chimpanzees sustained a collective resource for longer in groups of four compared to dyads rdcu.be/e0qPR
rdcu.be
Chimpanzee groups achieve sustainable resource use in a common-pool resource dilemma
Communications Psychology - Groups of two or four chimpanzees encountered a collective resource sustainability problem. Quartets avoided resource collapse for longer than dyads, with group social...
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Rachel Dale @drracheldale.bsky.social · 11/12/2025
Iain Douglas-Hamilton was a champion for elephants 🐘 & one of the inspirations for my own research. He was among the 1st to study ele social behaviour & it was his life's work to protect them Sending my condolences to all the friends & family during this sad time www.bbc.com/news/article...
bbc.com
Iain Douglas-Hamilton, pioneering elephant conservationist, dies aged 83
His groundbreaking field research was instrumental in banning the international ivory trade and protecting elephants from poachers.
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SKeupp @skeupp.bsky.social · 24/08/2025
🔔 New paper out on Social evaluation of skill and competence in primates @mariehirel.bsky.social, @williamohearn.bsky.social and @julxf.bsky.social made this happen www.sciencedirect.com/science/arti...
sciencedirect.com
Social evaluation of skill and competence in primates
Social life is a continuous interplay of observing and interacting with conspecifics, predicting their behavior, and responding to their actions. This…
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Benjamin Pitt @benjaminpitt.bsky.social · 25/11/2025
Come work with me on cognitive diversity, development & dynamics in beautiful Amherst, Massachusetts! Graduate student applications are due a week from today. cognitiveconstructionlab.com
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Christoph Völter @christophvoelter.bsky.social · 13/11/2025
Fully funded #PhDposition in Comparative Cultural Psychology @mpi-eva-leipzig.bsky.social. We will use touchscreen experiments & eyetracking to study mental simulations in nonhuman apes & human children across different cultures. All info here: www.eva.mpg.de/career/posit... Please share / apply!🙏
eva.mpg.de
Positions available - Max Planck Institute for Evolutionary Anthropology
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Jan Engelmann @janengelmann.bsky.social · 30/10/2025
Are humans the only rational animals? For thousands of years, we’ve thought so. Our new paper, out today in Science, suggests otherwise! We present evidence that chimpanzees possess several core capacities for rational thought. Check out Emily's thread: bsky.app/profile/emil...
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Emily M. Sanford @emilymsanford.bsky.social · 30/10/2025
Are humans really the only rational animals? Our NEW PAPER 🎉 out in @science.org suggests otherwise! In a large collaboration led with my joint first author @hanna-schleihauf.bsky.social, we show that “Chimpanzees rationally revise their beliefs” 🧵
science.org
Chimpanzees rationally revise their beliefs
The selective revision of beliefs in light of new evidence has been considered one of the hallmarks of human-level rationality. However, tests of this ability in other species are lacking. We examined...
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Jane Goodall Institute of Canada @janegoodallcan.bsky.social · 01/10/2025
Dr. Jane made an indelible mark on our understanding of chimpanzees and other species, and also of humankind and the environments we all share. She inspired curiosity, hope, and compassion in countless people, and paved the way for many others. #ThankYouJane #RememberingJane Photo: Marko Zlousic
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steven t. piantadosi @spiantado.bsky.social · 27/09/2025
www.nytimes.com/2025/09/27/u...
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Cognition @cognitionjournal.bsky.social · 22/09/2025
"A signaling theory of self-handicapping" 📢New from: @yangxiang.bsky.social @gershbrain.bsky.social @tobigerstenberg.bsky.social www.sciencedirect.com/science/arti...
sciencedirect.com
A signaling theory of self-handicapping
People use various strategies to bolster the perception of their competence. One strategy is self-handicapping, by which people deliberately impede th…
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Monica Ellwood-Lowe @mellwoodlowe.bsky.social · 15/09/2025
I’m hiring!! 🎉 Looking for a full-time Lab Manager to help launch the Minds, Experiences, and Language Lab at Stanford. We’ll use all-day language recording, eye tracking, & neuroimaging to study how kids & families navigate unequal structural constraints. Please share: phxc1b.rfer.us/STANFORDWcqUYo
phxc1b.rfer.us
Research Coordinator, Minds, Experiences, and Language Lab in Graduate School of Education, Stanford, California, United States
The Stanford Graduate School of Education (GSE) seeks a full-time Research Coordinator (acting lab manager) to help launch and coordinate the Minds,.....
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Haneul Jang @haneuljang.bsky.social · 14/09/2025
💙New paper!💙 How is knowledge transmitted across generations in a foraging society? With @danielredhead.bsky.social we found: In BaYaka foragers, long-term skills pass in smaller, sparser networks, while short-term food info circulates broadly & reciprocally academic.oup.com/pnasnexus/ar...
academic.oup.com
Transmission networks of long-term and short-term knowledge in a foraging society
Abstract. Cultural transmission across generations is key to cumulative cultural evolution. While several mechanisms—such as vertical, horizontal, and obli
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Amitai Shenhav @ashenhav.bsky.social · 11/09/2025
Update: the deadline for the Biological Basis of Behavior has been extended to Sept 18th! ✨ aprecruit.berkeley.edu/JPF05054 Please reach out to Linda Wilbrecht if you have any questions about the position.
aprecruit.berkeley.edu
Assistant Professor - Biological Basis of Behavior - Department of Psychology
University of California, Berkeley is hiring. Apply now!
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Mariel Goddu @marielgoddu.bsky.social · 11/07/2025
My comment on Fillipo Torresan & @manuelbaltieri.bsky.social's "Disentangled representations for causal cognition" in Physics of Life Reviews: www.sciencedirect.com/science/arti... I argue that there is little meaningful analogy between learning from "pixels" vs "experience," but I praise
sciencedirect.com
Disanalogies between causal learning in animals vs. machines: Comment on “disentangled representations for causal cognition” by F. Torresan & M. Baltieri
None.
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Jan Engelmann @janengelmann.bsky.social · 10/07/2025
This paper really is developmental science at its best. Empirically convincing and theoretically rich. Shows once again that we cannot assume that the adult state is the default state.
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Victoria Southgate @vhsouthgate.bsky.social · 09/07/2025
Sharing our new paper published today in Nature Communications. In my view, this is our clearest demonstration to date that something profoundly changes in how infants encode the world around them before and after the emergence of self-representation. www.nature.com/articles/s41...
nature.com
The self-reference memory bias is preceded by an other-reference bias in infancy - Nature Communications
A classic feature of human memory is that we remember information better when it refers to ourselves. Here, the authors show that before the emergence of self-concept, infants instead remember informa...
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Victoria Southgate @vhsouthgate.bsky.social · 09/07/2025
Before, they are altercentric and remember better things that are relevant for others; afterwards, they shift towards egocentrism, remembering better things that are relevant for themselves - as we also do as adults.
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Amy Diehl, Ph.D. @amydiehl.bsky.social · 07/07/2025
In a study of professors, women got 378 new work requests over 4 weeks vs 118 for men. Women spent more time on service, advising & teaching; men on research. Orgs should track who is taking extra duties & ensure they are rewarded and distributed fairly. www.forbes.com/sites/kimels...
forbes.com
Being Too Helpful At Work Can Hurt Your Career—Here’s How To Say No
Women are more likely to take on behind-the-scenes duties at work—extra tasks like onboarding or event planning—and it's hurting their careers. Here's how to say no.
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The Mind & Morality Lab @ Brown University @mindandmoralitylab.bsky.social · 30/06/2025
🚨We're hiring! The Mind & Morality Lab is seeking a Lab Manager to start this September. Excited about research on social cognitive development? Apply here: forms.gle/4rKXD2x1vmkD.... Learn more about us: sites.brown.edu/mindmorality.... ⏳ We’re reviewing applications on a rolling basis—apply early!
docs.google.com
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Jan Engelmann @janengelmann.bsky.social · 19/06/2025
Check out our new TICS paper on disagreement and metacognition! We argue that disagreement drives metacognitive development by expanding children's consideration sets. With Antonia Langenhoff, Bill Thompson @wdt.bsky.social and Mahesh Srinivasan www.sciencedirect.com/science/arti...
sciencedirect.com
Disagreement drives metacognitive development
Metacognition improves significantly over childhood, but the mechanisms underlying this development are poorly understood. We first review recent rese…
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Trends in Cognitive Sciences @cp-trendscognsci.bsky.social · 18/06/2025
Online Now: Disagreement drives metacognitive development
dlvr.it
Disagreement drives metacognitive development
Metacognition improves significantly over childhood, but the mechanisms underlying this development are poorly understood. We first review recent research demonstrating that disagreement prompts competent responses by young children across several metacognitive domains (confidence monitoring, information search, and source monitoring). We then propose a mechanistic model of how disagreement facilitates metacognition. We localize one main source of children’s metacognitive limitations in their still-developing capacities to reason about alternative possibilities, which manifest in an overly narrow focus on one hypothesis. Disagreement increases the child’s likelihood of representing alternative hypotheses, thereby promoting improved metacognitive reasoning. The broader proposal is that, through repeated experiences of disagreement, children become better at representing alternative possibilities even when reasoning on their own, leading to metacognitive development.
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Dr Rebecca Koomen @rebeccakoomen.bsky.social · 05/06/2025
🎊Fully funded PhD position on cooperative sustainability🌳 Are you curious about 🧒 developmental, 🌍 cross-cultural 🦧 species comparative research on cooperative sustainability? All info here or dm me with questions! career2.successfactors.eu/sfcareer/job... Please share! 🙏
career2.successfactors.eu
Career Opportunities: PhD position Cooperative Sustainability (14208)
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Jan Engelmann @janengelmann.bsky.social · 05/06/2025
Chimpanzees are, just like humans, very curious about other's social relationships. In some cases, they even give up a material reward to watch social interactions. Check out this exciting new work by @laurasimonelewis.bsky.social royalsocietypublishing.org/doi/full/10....
royalsocietypublishing.org
Chimpanzees and children are curious about social interactions | Proceedings of the Royal Society B: Biological Sciences
Curiosity is adaptive, enhances learning, and reduces uncertainty. Social curiosity is defined as the motivation to gain information about the actions, relationships, and psychology of others. Little ...
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Alison Gopnik @alisongopnik.bsky.social · 04/06/2025
New paper from Laura Lewis and Jan Engelmann et al. (including me) with a clever new method. Chimps and kids will forgo reward to get a chance to look at social interactions royalsocietypublishing.org/doi/full/10....
royalsocietypublishing.org
Chimpanzees and children are curious about social interactions | Proceedings of the Royal Society B: Biological Sciences
Curiosity is adaptive, enhances learning, and reduces uncertainty. Social curiosity is defined as the motivation to gain information about the actions, relationships, and psychology of others. Little is known about the developmental and evolutionary roots ...
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Jan Engelmann @janengelmann.bsky.social · 28/05/2025
Such an interesting perspective!
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Carolyn Baer @carebaer7.bsky.social · 21/05/2025
New paper! When do children trust others and when do they come up with their own ideas? Kids 8+ considered and weighed each person's confidence to decide whether to form new beliefs. With @janengelmann.bsky.social and @celestekidd.bsky.social Free here: dx.doi.org/10.1111/desc...
dx.doi.org
Children Use the Relative Confidence of People With Conflicting Perspectives to Form Their Own Beliefs
We provide evidence that children sensibly integrate the judgments of different people who disagree according to their confidence. We asked children (ages 5–10 years, N = 92) to make judgments about ...
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Jan Engelmann @janengelmann.bsky.social · 25/04/2025
We cannot wait!
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Tobias Gerstenberg @tobigerstenberg.bsky.social · 21/04/2025
Now officially out in Psychological Review 🥳 "Causation, Meaning, and Communication" by Ari Beller and me. 📃 (paper): psycnet.apa.org/record/2026-... 📜 (preprint): osf.io/preprints/ps...
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Prof Nichola Raihani @nicholaraihani.bsky.social · 27/11/2024
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.org
No evidence for inequity aversion in non-human animals: a meta-analysis of accept/reject paradigms | Proceedings of the Royal Society B: Biological Sciences
Disadvantageous 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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