Our book is officially out and there is even an audiobook version! Unfortunately, it’s not narrated by us, so you’ll miss out on our lovely Italian/French accents (a tragic loss for audiobook history). Apparently, Amazon.fr has only three copies left: THANK YOU! www.amazon.fr/Decision-Mak...

📢 New preprint📜 out 🚨: "Biased processing of multiple outcomes in human reinforcement learning: evidence from computational modeling and eye-tracking" How do we integrate multiple outcomes that stem for a single decision? 🔗 osf.io/preprints/ps... Too lazy to read? I made a summary of the thread👇

And huge thanks again both RIKEN CBS-Toyota Collaboration Center (btcc.riken.jp/en/) and @eslr.bsky.social for your generous support! And thanks a lot @tatsushi-usui.bsky.social for the stunning logo design and local organisations!

Me and @watarutoyokawa.bsky.social want to thank everyone who attended, presented at, and helped organize #COSMOS2025! If you weren't able to make it, all teaching materials are already online and we'll be uploading videos of all talks soon cosmossummerschool.github.io/materials/

Using social reinforcement learning to figure out which japanese konbini (convenience store) is superior. Where are you getting your strong zero, onigiri, or egg sandwich? Last #COSMOS2025 talk of the day by Shinsuke Suzuki sites.google.com/view/szklab/...

Mayuko Nakamaru pointed what if gossips, a said-to-be key mechanism of human indirect reciprocity, have lies. Her evo. models seem to have many rooms to be addressed by cognitive models too! #cosmos2025

I just had a lovely morning teaching memo with Lio Wong at #COSMOS2025 in Tokyo! Charley and Wataru have put together an absolutely *fantastic* summer school. Fascinating talks, delightful people… and excellent location. I feel so lucky to be here. If you ever get a chance to attend COSMOS, take it!

Afternoon session #COSMOS2025 is about trying to cooperate with lying gossips… 😵 but only in prisoner’s dilemma 😌 by Mayuko Nakamaru (sites.google.com/view/mayukon...)

Now up at #COSMOS2025: @kartikchandra.bsky.social & Lio Wong giving a tutorial on recursive social reasoning using MEMO github.com/kach/memo Fun fact: those flowers between them and 🗻 are called "cosmos". Collab notebook here to follow along 👉 cosmossummerschool.github.io/materials/#g...

The first lecture of the day at #COSMOSTokyo is on various social and strategic learning scenarios and their underlying neurocomputational mechanisms, by Lusha Zhu (www.lushazhu.com)

@thecharleywu.bsky.social is giving our second tutorial explaining how we can study complex social behaviour through computational models. As always, code and demo are available in the website! cosmossummerschool.github.io/notebooks/tu...

Shifting the spotlight from dominance towards shared decision-making in collective groups @damienfarine.bsky.social #COSMOS2025

Up now at #COSMOS2025 @lucymaplin.bsky.social presenting work on social learning and cultural inheritance in wild great tits 🐦

The first lecture of #COSMOSTokyo given by @lucymaplin.bsky.social showing a variety of innovations in birds reported in the citizen science app! www.spotteron.net/apps/regiona...

Key dimensions of social learning problems. @watarutoyokawa.bsky.social giving the first tutorial of #COSMOS2025 As always, course materials are opening available on our website cosmossummerschool.github.io/materials/

Tatsuya Kameda giving the opening keynote at #COSMOS2025 (photo care of @henrivdd.bsky.social)

COSMOS2025 kick started!! And we’ve got the generous support from #ESLR community for the ESLR travel award!! Join ESLR if you are interested in social learning, cultural evolution, collective behaviour, and beyond!!

🥁COSMOS 2025 Tokyo edition official kick-off in RIKEN🇯🇵! We had a poster session as a starter🧑‍🎓. Lots of interesting computational stuff with collective things and social matters🤓. Organized by @thecharleywu.bsky.social and @watarutoyokawa.bsky.social

🚀👩‍🚀 COSMOS 2025 is coming to Tokyo in less than a week! Me + @watarutoyokawa.bsky.social + our amazing faculty👇 can’t wait to welcome everyone to RIKEN. 📣 Attendees: check your inbox for info about travel, accommodations, mentorship groups, guest access, etc... cosmossummerschool.github.io

🚀👩‍🚀 COSMOS 2025 is coming to Tokyo in less than a week! Organized by @thecharleywu.bsky.social & @watarutoyokawa.bsky.social with an amazing faculty👇 can’t wait to welcome everyone to RIKEN. 📣 Attendees: check your inbox for info cosmossummerschool.github.io