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Ryutaro Uchiyama

@uchiyama.bsky.social

🔗 https://ryu.sg 🌏Asst Prof @Singapore University of Technology and Design (SUTD) 〜Human cognitive ecology; Embodied Human-AI interfaces; Cultural evolution 〜 Previously 🇩🇪 ←🇬🇧 ←🇨🇦 ←🇺🇸 ←🇯🇵〆

28 Posts539 Follower342 Folgt
Ryutaro Uchiyama@uchiyama.bsky.social · 4d ago

Written in 2015, but what a remarkable illustration of the state (as a nexus of commerce, reputation management, and violent coercion) serving as a “cultural attractor”

Henry Farrell@himself.bsky.social · 4d ago

"Ulbricht ... paid $150,000 to someone he believed to be a senior member of the Hells Angels to arrange for the murder of his blackmailer, later paying another $500,000 to have associates of FriendlyChemist murdered too" I spent time I'll not get back researching Silk Road. He weren't no nice guy.

Mason Youngblood@masonyoungblood.bsky.social · 2w ago

Our new preprint explores how increasing interaction between humans and artificial agents and is reshaping creativity, from the perspective of cultural evolution! @katieeeeeeeeeee.bsky.social @manuelangladatort.bsky.social @camrobjones.bsky.social @gemschedel.bsky.social arxiv.org/abs/2609.02620

Collective creativity in hybrid societies

Generative AI is changing how cultural artifacts are created and circulated, and with it our understanding of creativity itself. Researchers disagree about whether these tools enrich or impoverish cul...

arxiv.org

Jeff Yoshimi@jyoshimi.bsky.social · last mo.

I first learned dynamical systems theory from “Dynamics: the Geometry of Behavior” (1992), a collaboration between mathematician Ralph Abraham and artist Chris D Shaw. The book is over 600 pages long, and the visualizations stay strong and groovy the whole time.

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Stephen Chrisomalis@schrisomalis.bsky.social · 7mo ago

OK, it finally happened! My new article, "Gradience as a cognitive principle for evaluating numerical notations", is now out today in @pnas.org. By focusing on numerals' use for communication instead of arithmetic, we have a new tool to assess their efficiency. www.pnas.org/doi/10.1073/...

Gradience as a cognitive principle for evaluating numerical notations | PNAS

More than 100 historically, archaeologically and ethnographically attested numerical notations have been used over the past 5,000 y; however, becau...

pnas.org

Ryutaro Uchiyama@uchiyama.bsky.social · 8mo ago

New paper out in Cross-Cultural Research: Using Roebuck & @glupyan.bsky.social's Internal Representations Questionnaire, I test the preregistered hypothesis that writing systems shape the modality of mental imagery, with data from China and Japan. journals.sagepub.com/doi/10.1177/... 🧵

Sage Journals: Discover world-class research

Subscription and open access journals from Sage, the world's leading independent academic publisher.

journals.sagepub.com

Michael Muthukrishna@michael.muthukrishna.com · 10mo ago

I’m recruiting PhD students at NYU (start Sept 2026). Focus: cultural evolution, innovation & cooperation, AI & society, progress studies & development. Deadline to apply is Dec 1- very soon. I’ll share more about the move & new work soon. Please share with students & retweet!

Ryutaro Uchiyama@uchiyama.bsky.social · last yr.

Looking forward to my conversation with the Asian Cultural Evolution Seminar on zoom 29 July 🌏

Wataru Toyokawa@watarutoyokawa.bsky.social · last yr.

【🚨ACE Seminar Alert🚨】We're excited to have Dr Ryutaro @uchiyama.bsky.social joining from Singapore on Tuesday 29th July at 7pm in Tokyo (6pm in Singapore/12am in Berlin)! You can sign up for the mailing list to get the zoom link by sending a blank email to ace-seminar+subscribe@googlegroups.com

Title: Motor–environment exploration in the human developmental niche Absract: In real behavioral ecologies, adaptive learning requires simultaneous exploration of both motor control and environmental task structure ("world model"), each presenting its own form of open-ended search complexity. We know much about each of these learning domains, but relatively little about their joint exploration space. I propose that this dual motor–environment exploration is crucial for understanding the human evolutionary niche. Human agency prolifically shapes environments that in turn shape our learning trajectories, presumably yielding a reciprocal (niche-constructive) feedback loop that couples mental structures to environmental structures and vice versa. Dual motor–environment exploration helps illuminate the explore–exploit landscape of this deeply collective, near-eusocial epigenetic milieu. It also offers unique computational and teleological perspectives on phenomena like cultural learning, social cognition, and behavioral creativity – complementing the population-level stochastic mechanisms proposed by cultural evolutionary theories.
Dominik Deffner@dominikdeffner.bsky.social · 2y ago

🏰 PhD position on computational modelling | collective dynamics | cultural evolution 🏰 Get in touch with any questions you might have and join me in beautiful Marburg! stellenangebote.uni-marburg.de/jobposting/c... (Deutsch) stellenangebote.uni-marburg.de/jobposting/3... (English)

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Richard McElreath 🐈‍⬛@rmcelreath.bsky.social · 2y ago

My former PhD @dominikdeffner.bsky.social is now a professor and is looking for a PhD student. Know someone who would fit? stellenangebote.uni-marburg.de/jobposting/3...

The newly established research group Computational Modelling of Behaviour is seeking applicants for a PhD position in one of the following research areas: Collective dynamics and cultural evolution, social decision-making, cognitive modeling, Bayesian statistics, causal inference, cross-cultural methods. Tasks: conducting independent research in the group's areas of interest, e. g., interactive group experiments on social dynamics, cognitive or agent-based modeling, analysis of panel data or large cultural datasets, field research, cross-cultural studies scientific services in research and teaching contributing to the group’s research agenda and contributing to third-party funding applications publishing results at scientific conferences and in journals
Felix Riede@felixthehauskat.bsky.social · 2y ago

3) 2.5 yr postdoctoral position in Palaeolithic gene-culture coevolution. Together with a palaeogenomics postdoc, we seek to generate material culture data such that we can capture these ancient gene-culture cophylogenetic dynamics international.au.dk/about/profil...

Postdoctoral position in Palaeolithic gene-culture coevolution, Department of Archaeology and Heritage Studies, Aarhus University - Vacancy at Aarhus University

Vacancy at School of Culture and Society - Department of Heritage Studies, Aarhus University

international.au.dk

Dr. Alexandra Witt@alexthewitty.bsky.social · 3y ago

Super stoked to announce that the preprint for my first PhD project is out! 🥳 In everyday life, we often rely on other people's opinions, despite them not sharing our exact preferences. But how do we do this adaptively? Find out in this 🧵 (1/7) or here: osf.io/e4g3q

Ryutaro Uchiyama@uchiyama.bsky.social · 3y ago

🇺🇳 the UN just dropped their first report on AI governance. Discussion of governance as an enabler rather than hindrance — parallels with programs for vaccine equity (GAVI) and scientific coordination (CERN, EMBL). Regarding risks, they seem aware of vast unknown unknowns www.un.org/en/ai-adviso...

AI Advisory Body | United Nations

To foster a globally inclusive approach, the UN Secretary-General has convened a multi-stakeholder High-level Advisory Body on AI to undertake analysis and advance recommendations for the internationa...

un.org

Dr. Lucky Tran@luckytran.com · 3y ago

"I imagine one of the reasons people cling to their hates so stubbornly is because they sense, once hate is gone, they will be forced to deal with pain." — James Baldwin

Black and white photo of James Baldwin sitting in front of a bookcase
Robert Hawkins@rdhawkins.bsky.social · 3y ago

The Consumer Financial Protection Bureau (CFPB) is hiring a section chief for the psych/”behavioral” section and I'd love to see some CogSci representation in there! My brother works there (trained as an economist) and it's an incredible gig doing research in the public interest.

Supervisory Research Scientist (Interdisciplinary)

This position is located at the Consumer Financial Protection Bureau (CFPB), Office of Research. The incumbent supervises and conducts independent, self-directed social/behavioral analysis on a variet...

usajobs.gov