🚨 New preprint 🚨 We present the decisions-from-experience database (DfE-DB), including data from 168 studies. The data are currently shared with the original authors and made public upon publication. 🔗 Database: github.com/dwulff/dfe-db 🔗 Preprint: www.biorxiv.org/content/10.6...

Congrats to PNI + affiliated trainees named 2025 Honorific Fellows by the @princeton.edu Graduate School! 👏 Victor Geadah 👏 Isaac Christian 👏 @danmirea.bsky.social gradschool.princeton.edu/news/2025/ho...

1/n Out today in @jamapsychiatry.com: Interpretation Issues With the Patient Health Questionnaire Instructions. We find troubling variability in whether people think they should respond based on the frequency of the Sx or the frequency of being bothered by the Sx. jamanetwork.com/journals/jam...

Our paper on the ☀️ "summer slide" 🛝 is out now @pnas.org! www.pnas.org/doi/10.1073/... Summer slide is a replicable phenomenon across diverse datasets that's more than "forgetting" school material in vacation months, but effects of socioeconomic inequality are ➡️ 7x bigger! ⬅️ #PsychSciSky #DevPsy 🧵👇

Excited to see this out!

We have a new preprint: osf.io/preprints/so... What have we learned about social media - the constantly moving target of empirical research - over the past decade?

Super happy to see this review out! We ask why people are so reluctant to abandon goals and how this commitment could be understood computationally. Work with Jill O'Reilly & @yaelniv.bsky.social

I will be recruiting 🌟PhD students🌟 for my newish lab! If you're interested in learning & memory mechanisms applied to individual, interactive & collective behavior using computational modeling, real-world experiments and fMRI, email me! RTs much appreciated 🙏 rouhanilab.com

📢 Thrilled to share our paper is out now in @natcomms.nature.com Shared computations underlie how we acquire actions that are mutually beneficial, instrumentally harmful (benefits self at the expense of others), altruistic (benefit others at the expense of self), or mutually costly 🧵 rdcu.be/eL8mZ

1/ To explore or to exploit? I’m excited to share my new preprint with @tobiasuhauser.bsky.social and @micahgallen.com, correlating variations in cortical microstructures with individual differences in exploration-exploitation behaviours, using a gamified task! 🧵 www.biorxiv.org/content/10.1...

What influences whether people have fun with a task? Our paper “Leveling up fun: learning progress, expectations and success influence enjoyment in video games” with @thecharleywu.bsky.social and @ericschulz.bsky.social now in Scientific Reports! rdcu.be/eI069 Paper summary below 1/4

🚨 New preprint 🚨 Across 3 experiments (n = 3,285), we found that interacting with sycophantic (or overly agreeable) AI chatbots entrenched attitudes and led to inflated self-perceptions. Yet, people preferred sycophantic chatbots and viewed them as unbiased! osf.io/preprints/ps... Thread 🧵

I strongly believe modeling behavior will be critical for understanding mental health well enough to develop new interventions, but the gap between task-based and naturalistic behavior is MASSIVE. Some great ideas here for bridging that gap!

Such an important topic: computational psychiatry at the nexus of lab-based understanding (eg of reinforcement learning and mood) and measures of real-world behavior and mental health conditions. (Scroll to the bottom for a link open to all).

📢 My lab at the Mount Sinai School of Medicine is considering graduate student applications this fall We welcome applicants interested in using computational modeling & fMRI to study social connection 🗓️ Deadline: December 1, 2025 🔗 Learn more: sinclaboratory.com/apply #comppsychiatry #socialneuro

Fantastic paper by @danmirea.bsky.social ! 👇

Inspiring work by @danmirea.bsky.social!

🚨Out now in @cp-trendscognsci.bsky.social 🚨 We explore the use of cognitive theories/models with real-world data for understanding mental health. We review emerging studies and discuss challenges and opportunities of this approach. With @yaelniv.bsky.social and @eriknook.bsky.social Thread ⬇️

🚨 New Preprint 🚨 Prolonged Isolation is associated with an increased behavioural sensitivity to ‘Likes’ on social media. 🧵 Social media rewards are inherently social—but does posting change during social isolation, when in-person social rewards are limited? It turns out, yes!

This is an exquisite demonstration of using intracranial recordings in humans to validate our findings that amygdala neurons encode the value of exploring in NHPs. www.nature.com/articles/s41...

🚨 New paper alert! Do time constraints reveal habitual behaviour? 🤔 We directly compared two major paradigms in the habit research field (Outcome Devaluation vs Response Remapping) under identical training and forced-response conditions 🧠 ⏲️ ⌨️ preprint: osf.io/preprints/ps...

In our preprint "Limited evidence for reduced learning rate adaptation in anxious-depression, before or after treatment", led by @stephsuddell.bsky.social and Lili Zhang, we fail to find a robust association between anxious-depression and learning rate adaptation osf.io/preprints/ps...

At #RLDM2025? Come to our workshop on real-world RL tomorrow! Including: - amazing line-up: @bjornlindstrom.bsky.social, Aaron Heller, Sugandha Sharma, @arossotto.bsky.social + flash talks - panel debate (chair: @yaelniv.bsky.social) - group brainstorming session! Mailing list: tinyurl.com/rlinwild

Thrilled to have received the 2025 Psychology of Technology Dissertation Award for my work on understanding mental health through digital behavior! Thank you to the institute, and so grateful to my amazing advisors @yaelniv.bsky.social and @eriknook.bsky.social for their unwavering support!

If you’re at @rldmdublin2025.bsky.social next week, consider joining our workshop on real-world RL! You can sign up to our mailing list for updates here, even if you don’t attend: sites.google.com/view/rlinthe...

🔷New in Biological Psychiatry🔷 **Old Strategies, New Environments: Reinforcement Learning on Social Media** In this Review, we argue that the computational framework of Reinforcement Learning can help us understand social media behaviour: www.sciencedirect.com/science/arti...

Dan @danmirea.bsky.social will share his science communication and public engagement expertise as an educational content creator (@danniesbrain on TikTok and Instagram) and program coordinator of @mental_health_for_romania

Sign up for our *free* online Science Communication Workshop on May 5&7! Tinyurl.com/scicomins Featuring our incredible workshop instructor @choano.bsky.social and our amazing social media science communication panel: @sciencewhizliz.bsky.social, @danmirea.bsky.social, and @moadlc.bsky.social.

Huge congratulations to Chantal @talvaldivia.bsky.social for receiving an NSF Honorable Mention and to Dan @danmirea.bsky.social for being awarded a Procter Fellowship from the Graduate School earlier this month! We’re so proud of their achievements!

Kristina Olson and I have a truly incredible advisee who won an NSF but had no luck on clinical psych PhD applications this round. Anyone able to consider another candidate this late in the process? Trust me, you won't regret it!

I don’t dare to tell you how many years this took, but the project that I started as a MSc intern and kept working on throughout my PhD is now finally published: www.nature.com/articles/s44... [1/9]

We’re thrilled to celebrate Erik for co-authoring the Best Paper at SAS (Nencheva et al., 2024) and Dan for winning the Diversity Award! Beyond these achievements, our lab members gave fantastic talks: @eriknook.bsky.social @raziasahi.bsky.social @danmirea.bsky.social @claire-whiting.bsky.social

New comment by @faridanvari.bsky.social and friends arguing that psychology is fragmented into the study of too many constructs and measures with too few links. www.nature.com/articles/s41...

How can we reduce conceptual clutter in the psychological sciences? @ruimata.bsky.social and I propose a solution based on a fine-tuned 🤖 LLM (bit.ly/mpnet-pers) and test it for 🎭 personality psychology. The paper is finally out in @natrevpsych.bsky.social: go.nature.com/4bEaaja

🚨New Preprint Alert!🚨 To what extent can we use language to measure psychological and subjective well-being? 🤔 We tested how well language-based models (i.e., bert-based embeddings) predict subjective & psychological well-being across three studies. Here’s what we found! 🧵👇

What is driving social foraging dynamics in the wild? In a new pre-print, we investigate decision-making mechanisms in large groups of Finnish ice-fishers competing for resources: osf.io/preprints/ps... Big thanks to drone pilot Félicie Dhellemmes. 1/n youtu.be/I_RH2diXcAk

New preprint out with @summerfieldlab.bsky.social! When does new learning interfere with existing knowledge? We compare continual learning in humans and artificial neural networks, revealing similar patterns of transfer & catastrophic interference (1/8) osf.io/preprints/ps...

Are you a junior faculty member interested in spending 2-4 weeks at Princeton Psych? Please apply for our Microsabbatical program! It’s a fully funded visit for professional development and creating long-term collaborations. psych.princeton.edu/diversity/mi...

🚨 Workshop alert 🚨 If you're interested in RL and real-world data, come to our workshop @rldmdublin2025.bsky.social! Including cool talks, a panel debate, and a group brainstorming activity. sites.google.com/view/rlinthe...