Fred Callaway

[carlos g. correa @_cgcorrea]

My paper on hierarchical plans is out in Cognition!🎉

tldr: We ask participants to generate hierarchical plans in a programming game. People prefer to reuse beyond what standard accounts predict, which we formalize as induction of a grammar over actions.

https://t.co/3nJ2Ei8LtB

[Fred Callaway @callfredaway]

Just walked out of a set at @ComedyCellarUSA (nyc) where the comic (Lenny Marcus) was doing a long bit mocking homeless people. Most of the audience was laughing. Pretty hard to be hopeful about the future right now...

[Fred Callaway @callfredaway]

Reminder that by staying on twitter, academics are giving this guy money and power. Bluesky is excellent software—it just needs users!

[David Leavitt 🎲🎮🧙‍♂️🌈 @DavidLeavitt]

According to X’s AI Grok, the top story on Twitter right now is that @elonmusk’s actions are being “widely condemned as an act of election interference” for suspending #WhiteDudesForHarris after raising $4 million for Kamala Harris

[Annika Boldt @BoldtAnnika]

Our new preprint (collaboration with Claire Gillan @celinefox_ and @samgilbert1) explores the complex relationship between metacognition, compulsivity and the utilization of external reminders. (1/7)

[Sam Gershman @gershbrain]

Institutions should reflect on this wisdom:
https://t.co/2OaR0x8SIK
Institutions have an incentive to make their contribution externally legible by proliferating centrally organized programs. I believe this paradoxically reduces the quality of research it's meant to support.

[Fred Callaway @callfredaway]

Mark is a wonderful person and scientist. I highly recommend this postdoc opportunity.

[Mark Ho @mark_ho_]

I'm looking for a postdoc interested in computational cognitive modeling and deep reinforcement learning!

Submit a CV and references here: https://t.co/BFNjvqx7Pt

Please share with anyone who might be interested!

[Fred Callaway @callfredaway]

In this paper, we show how people reuse hierarchical structure while solving problems, using a program-writing task (lightbot) and a grammar induction model (adaptor grammar).

[carlos g. correa @_cgcorrea]

Human behavior is hierarchically structured. But what determines *which* hierarchies people use? In a preprint, we run an experiment where people create programs that correspond to hierarchies, finding that people prefer structures with more reuse.

https://t.co/5a9YdhK04U

1/7

[Matt Hardy @mdahardy]

Our paper on optimal nudging is out in Psych Review! We use resource-rational analysis to formalize nudges and predict their effects.

We also show how to use this approach to automatically construct *optimal* nudges that best improve choice.

With @callfredaway and @cocosci_lab

[Fred Callaway @callfredaway]

@mdahardy @cocosci_lab And here’s a thread summarizing the results!

[Fred Callaway @callfredaway]

You know that feeling when you're trying to make a rational decision but all those pesky heuristics and biases make you do something silly? Wouldn't it be great if those biases helped us make ~better~ decisions instead?

(https://t.co/5AN6EfWmqt 🧵)

[Laurence Hunt @LHuntNeuro]

While it’s *deeply* unfashionable to be publishing in @eLife right now - do humour us for advertising a study that was several years in the making (submitted way back when it was still possible for reviewers to reject us!). We’re rather proud of it.🧵👇🧵https://t.co/iX3vHSbdgv

[Nora Harhen @Nora_Pinephrine]

Really excited to share our new paper where we use a reinforcement learning model to demonstrate that rational adaptation to an unpredictable early life environment can produce key characteristics of anhedonia. (1/10) https://t.co/XNOPtUjRvN

[Emily Liquin @emilyliquin]

I’m recruiting PhD students to help launch the Exploration, Learning, and Mind Lab at @UofNH Psych in Fall 2024!

Check out our lab website at https://t.co/PsMimneBpa for more info, and feel free to get in touch if you’re interested in applying!

[Falk Lieder @FalkLieder]

Our article, "Identifying Resource-Rational Heuristics For Risky Choice" just got accepted in Psychological Review thanks to the hard work of @callfredaway & Paul Krueger, who did most of the work, and Tom Griffiths, who co-supervised the project with me. https://t.co/qkk7EVsRhk

[Fred Callaway @callfredaway]

I'm pleased to announce that our work on optimal metacognitive control of memory recall has been published in Psych Review!
https://t.co/TCe7C10Lmx

[Fred Callaway @callfredaway]

You know that feeling when you can't remember a citation, but you can feel it hiding in your brain somewhere, taunting you? In this paper, we propose a computational model of how these "feelings of knowing" help us rationally allocate memory resources. https://t.co/cnjlTLY8pp

[Gaia Molinaro 🦋 gaiamolinaro.bsky.social @gaia_molinaro]

The notion that goals are central to human cognition is intuitive, yet learning and decision-making researchers have often overlooked the topic. In this @TrendsCognSci article, @Anne_On_Tw and I propose it’s time to start studying goals in their own right https://t.co/6S5VyaaJ1d

[Ruairidh Battleday @RMBattleday]

Registration for general attendance now open for this year's mathematics of neuroscience conference:

https://t.co/pJDtURWsZM

We've got a full schedule of great talks, and would love to have you join us!

Also accepting physical/virtual poster submissions until Sept 20th.

[Tim Buschman @timbuschman]

New preprint with @cjahn_neuro on how the brain learns to control attention in a changing environment! We find attention is learned incrementally from reward feedback, and it maps stimuli into a generalized space that can guide decisions in many settings. https://t.co/UVoGrLEUBd

[xavier roberts-gaal @xave_rg]

Cumulative culture must withstand environmental change🌍How? One possibility: people have many learning strategies at their disposal🧠
Imitation is optimal in stable environments. When circumstances change, causal models can help🌟
Work with @fierycushman! https://t.co/ONkBLTNHZd

[Grant Sanderson @3blue1brown]

Here's a short dynamics-based explanation of the equation e^(πi)=-1