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Hanna

@hanna-schleihauf.bsky.social
272 followers 340 following 10 posts

Assistant Professor at Utrecht University, interested in the development and the evolution of reasoning

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Hanna @hanna-schleihauf.bsky.social · 13/10/2026
New paper in Cognitive Development! Why do we copy unnecessary actions? Combining eye-tracking with imitation, we show in two studies that action features matter in how children and adults interpret and imitate demonstrated actions. (1/4) Open access: doi.org/10.1016/j.cogdev.2026.101793
doi.org
Redirecting
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Science Magazine @science.org · 29/08/2026
When stressed, this comb jelly reverts to a larval form, then matures again when favorable conditions return. Learn more: scim.ag/4gmdt2J #ScienceMagArchives
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Melissa Kibbe @levelsof.bsky.social · 21/08/2026
New from me and Jessica Applin! We find that infants' behavior in a cracker choice task is impacted by an agent’s partial knowledge of object quantity: infants choose based on the agent's (inaccurate) representation rather than their own 🤯 Now in press at JECP, preprint: osf.io/preprints/ps...
osf.io
OSF
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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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Hanna @hanna-schleihauf.bsky.social · 30/05/2026
Innocent Ampeire has devoted his life to the orphaned chimps at Ngamba Island Sanctuary. He's been accepted into a remote Master's in Conservation Leadership, building the skills to lead conservation and safeguard the sanctuary's future. He's raising £9,100 for tuition: whydonate.com/fundraising/...
whydonate.com
Fundraiser by Hanna Schleihauf | Help Innocent Study Conservation Leadership at UWE
Hanna Schleihauf Needs Your Help | Friends, fans, and supporters, My name in Innocent Ampeire. For the past 20 years, I've devoted my work to the orphaned and rescued chimpanzees at Ngamba...
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Ashley Thomas @ashleyjthomas.bsky.social · 29/05/2026
Hi everyone! My paper on cognitive representations of relationships and their developmental origins is finally out! I had a blast responding to the commentary and was honored to be able to engage with people who laid the foundation for my research program. www.cambridge.org/core/journal...
cambridge.org
Cognitive representations of social relationships and their developmental origins | Behavioral and Brain Sciences | Cambridge Core
Cognitive representations of social relationships and their developmental origins - Volume 49
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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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Chris Krupenye @chriskrupenye.bsky.social · 24/04/2026
Thrilled to be featured alongside a number of colleagues I admire in this beautiful piece in @theguardian.com on stunning discoveries about the minds of our closest ape relatives! @gloriadickie.bsky.social www.theguardian.com/environment/...
theguardian.com
Bonobos enjoy pretend tea parties and chimps think rationally: why apes are more like us than we ever thought
A series of stunning findings about great apes’ mental capabilities in recent years has transformed how we see our closest relatives
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Joan Silk @jbsilk.bsky.social · 26/03/2026
Is it ironic, sad, or all-too-predictable that this news item would be in the same new cycle as the announcement of Birute Galdikas' death?
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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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Simon J. Greenhill @simongreenhill.bsky.social · 04/01/2026
Scientific funding is a net negative: "European taxpayers will have spent more on the funding process than on the funding itself, and the scientific ecosystem has been drained" www.nature.com/articles/d41...
nature.com
Point of no returns: researchers are crossing a threshold in the fight for funding
With so little money to go round, the costs of competing for grants can exceed what the grants are worth. When that happens, nobody wins.
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Science Magazine @science.org · 12/12/2025
Chimpanzees can remember the faces of friends and family for years, and sometimes even decades, according to research from 2023. #ScienceMagArchives scim.ag/4iPbuUd
science.org
Chimps remember the faces of old friends and family for decades
Recognition ability rivals all other animals, including humans
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Science Magazine @science.org · 05/11/2025
The ability of humans to think rationally and weigh the evidence when making a choice is well known. In a new Science study, researchers report that chimpanzees can also update their beliefs on the basis of the quantity and quality of new evidence. scim.ag/4nAmk0Q
scim.ag
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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Eric Topol @erictopol.bsky.social · 31/10/2025
Even chimpanzees think rationally and weigh the evidence when making a choice ;-) @science.org www.science.org/doi/10.1126/...
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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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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TeaP 2026 @teap2026.bsky.social · 09/09/2025
📢 SAVE THE DATE for #TeaP2026 in Tübingen 😍 Symposium submissions open on October 1! 🎉 For details, check out our website: coms.app/teap26/ 👍🏼
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Trinh Nguyen @trinhnguyen.bsky.social · 05/09/2025
New Article alert🧚We explored how motor synchrony in group settings affects preschoolers’ social learning & closeness. TLDR It didn't — likely due to the complexity of group (triadic) synchrony for young children. doi.org/10.3389/fpsy...
doi.org
Frontiers | Motor synchrony, social learning and closeness in group play settings
IntroductionPlayful activities provide critical opportunities for rhythmic interactions, which may affect social and cognitive development in early childhood...
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Evy van Berlo @evy-van-berlo.bsky.social · 16/07/2025
📢 Registration for the annual ZOOlogy conference on zoo research is now open! 7-9 Dec 2025 at ARTIS Amsterdam Royal Zoo (the Netherlands) Students and young researchers are especially welcome to present their work! (Incl reduced fees) Registration: lnkd.in/ezJxaW-f Info: lnkd.in/eJd-A2ev
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Christoph Völter @christophvoelter.bsky.social · 09/09/2024
Join us! We are seeking applicants for a fully funded 3-y PhD project on dogs’ and infants' causal perception using #eyetracking and #pupillometry, based at Vetmeduni Vienna and in collaboration with @jfkominsky.bsky.social at CEU. Full info here: share.eva.mpg.de/index.php/s/...
Dog on a chin rest in an eye-tracking study.
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