Exciting new paper on dopamine (DA) and learning.

Bellman: created an equation to compute the value of different choices before you. But it required infinite memory.

Sutton & Barto: Came up with a new way, by calculating the difference between what happened & what you expect. This 'reward prediction error' was mapped to DA in the brain.

New paper: not quite. Instead, the brain computes whether a stimulus precedes reward beyond that expected by chance (causality).

https://www.science.org/doi/10.1126/science.abq6740

Welcome to #MedMastodon!

I hope this #MedTwitter replacement won't be necessary but just in case here we are.

I think we can do a better job moderating content as a community of medical professionals.

Only 3 ground rules:
1. All medical professionals and curious onlookers are welcome.
2. Be kind and respectful: these are your colleagues.
3. No PHI or hate-speech. Debate is good, blatant misinformation is not.

Plus - as this shows - you get 500 characters & can edit “toots"

#introduction