Thomas Akam
@thomasakam.bsky.social
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Neuroscientist interested in planning and flexible behaviour | Open-source tool developer
Why does dopamine ramp up during approach to predictable rewards? In this preprint with Luke Priestley, we explore the idea that dopamine ramps occur when reward predictions inferred using a world-model are used to train striatal cached values.
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Dopamine ramps as a normative consequence of dual-process control
Midbrain dopamine neurons are thought to implement a temporal difference (TD) reward prediction error (RPE) that updates cached values stored in striatum. This has been challenged by evidence that dop...
https://www.biorxiv.org/content/10.64898/2026.02.18.706579v1
2 days ago
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Thomas Akam
6 days ago
How do brains plan actions towards goals? To get at this question we studied mice navigating complex mazes as goals changed on every trial 🧵 Work with
@thomasakam.bsky.social
@behrenstimb.bsky.social
@kristorpjensen.bsky.social
now on BioRxiv:
www.biorxiv.org/content/10.6...
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