More or less entirely migrated to 🟦sky at this point. Find me there @awestbrook.bsky.social!.

RT @brain_crit: Surprise! A new Brain Criticality Hybrid meeting is taking place from November 6 to 8 in Bethesda, MD.@NIH or on Zoom. Subm….

Generate videos in just a few seconds. Try Grok Imagine, free for a limited time.

RT @payampiray: 📣 I'll be recruiting PhD students for Fall 2025. Take a look at the lab website and the FAQ for prospective students:.http….

RT @neuroprinciples: 1/14 Happy to share our brief and sweet results on "signatures of criticality in efficient coding networks" now in @PN….

RT @yael_niv: We are hiring a Professional Specialist for a new NIMH Conte Center for Understanding Latent Cause Inference in Health and Il….

RT @L_Hofmans: I'm excited to share that our paper on the network structure of digital maturity has now been accepted for publication in Co….

RT @lkjanssen: Great to see a preprint from my time at the @obrainlab published @eLife. @NadineHerzog7 et al. pooled data from three of ou….

RT @nschawor: waveform shape of oscillations can reflect properties of underlying spiking dynamics. if neuronal units fire in synchrony, th….

RT @apaxon: New preprint! Joint work w/ @haleykegl & @BadreLab. lPFC flexibly codes tasks of diff structure. How? We test 2 prevalant ideas….

RT @woutmvant: Really thankful to work with a wonderful team of researchers @NoahSPhilipMD @AArulpragasam and others to develop a novel app….

RT @ShenhavLab: Trouble focusing?. Our latest study, led by @harrison_ritz, provides new insights into how the brain controls multiple stre….

RT @minzlicht: 🚨Out in Nature Human Behaviour🚨. Effort is costly--how can we learn to value doing effortful things? Reward effort, not outc….

RT @LindenParkes: At @APSMeetings this year? Come join our session on Neurodynamical Models of Cognition (chaired by @jason_z_kim)!! Also,….

RT @DanBang_: Excited to share our paper in @NatureHumBehav! Using electrochemical recordings in PD patient volunteers undergoing DBS surge….

RT @MillerLabMIT: As one might expect if one thinks beta has a role in top-down control (as I do). Cortical beta oscillations map to share….

This project was a monument to the incredible teamwork of collaborators including @CoolsControl, @LnccBrown, Ruben van den Bosch, @DPapadopetraki, @L_Hofmans, @JessicaMaatta, and @Anne_On_Tw. It was a true pleasure getting to work with these folks!.

Finally, consistent with our prior work, we find that pharmacological enhancement of dopamine signaling reduces cognitive effort discounting. Thus, DA signaling influences both learning and decision-making about cognitive effort.

Importantly, reinforcement learning rates are an order of magnitude lower when you take into account working memory contributions to learning. So, it is *critical* to account for working memory when trying to estimate how dopamine manipulations alter RL.

1) People who synthesize dopamine at a higher rate rely on working memory more. 2) Blocking DA reuptake increases the rate of RL. 3) D2 antagonism diminishes learning performance - potentially by undermining working memory maintenance.