New preprint alert with @mikebrowning.bsky.social and Chamith Halahakoon! People have been using computer-based reinforcement learning tasks with affect probes. But to what extent do they reflect real-life affective experience? We tested this with 3 weeks of EMA + RL tasks in 339 participants.

‪@benhayden.bsky.social‬ @tyrellturing.bsky.social‬ @jmgrohneuro.bsky.social‬ @pessoabrain.bsky.social I see a lot of talk on here about how we should avoid "x does y" talk because the brain is "a dynamic, reverberant, reciprocally interconnected system". But this does not follow. A thread...

New preprint from the lab! 🧠 Led by Juliana Trach, w/ Sophia Ou Using fMRI, we discovered evidence for time-sensitive reward prediction errors (RPEs) in the human cerebellum. Builds on, and extends, recent work in both rodents and NHPs

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...

Ok, reinforcement learning fans: RL is great, but what do we do when there's no obvious reward from the environment? What about perfecting a golf swing or a foxtrot or a musical performance? We may have an answer. A tale of 🐦 🎶 + 🧠. 🧵1/ #bioacoustics #prattle 💬 #neuroai #compneuro

Two papers out today on RL in the dopaminergic neurons of the midbrain of mice (one from McGill's new PI @paulmasset.bsky.social). Both papers demonstrate heterogeneity in discount factors! www.nature.com/articles/s41... nature.com/articles/s41... 🧠📈 🧪 #NeuroAI

New in Nature MentalHealth! with Vrizzi, Najar, Lemogne, and @mael-lebreton.bsky.social We tested whether behavioural and RL-based model parameters are test-retest reliable and predict mental health traits. The result? Not really. A cautionary tale for comp. psychiatry doi.org/10.1038/s442...

Widespread cofluctuations in the low-frequency range between resting-state global fMRI signals, EEG activity, and a host of peripheral autonomic signals spanning cardiovascular, pulmonary, exocrine and smooth muscle systems 🧪🧠 www.nature.com/articles/s41...

yesterday, my postdoc funding (salary and research funds) was cancelled by the National Science Foundation, effective immediately. I received the same generic, vaguely threatening, typo-ridden email as many of my colleagues who have had their awards terminated recently. (1/n)

Excited to see this in "print"! Work led by @jinke.bsky.social decoding emotional arousal across fMRI movie datasets!

Epic recordings of model-based and model-free learning signals from Kennerley lab (Bruno Miranda). Now at @elife.bsky.social doi.org/10.7554/eLif...