Armin Lak

@ArminLak

Sir Henry Dale Fellow at Oxford University

Oxford, United Kingdom
Vrijeme pridruživanja: studeni 2012.

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  1. Prikvačeni tweet
    6. sij 2019.

    Excited to announce that I will start a lab at Oxford University, . Neuronal circuits underlying learning and decision-making. The lab will open in the summer , supported by . Positions available, email me. Please RT.

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  2. proslijedio/la je Tweet

    Varying the timing of manipulations in a Pavlovian task reveals a temporally restricted role of neurons primarily in reinforcing stimulus–reward associations, and less related to directly generating movements

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  3. proslijedio/la je Tweet
    15. sij

    Distributional reinforcement learning (RL) algorithms predict the entire ‘distribution’ of future rewards not just the average and improve the AI performance. This work presents evidence that the brain’s dopamine system uses distributional RL.

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  4. 18. pro 2019.
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  5. 18. pro 2019.

    5/5 Thus, both medial frontal and dopamine responses are important for learning but not for choice computation: the first one by signalling reward prediction and the second one by evaluating the prediction.

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  6. 18. pro 2019.

    4/5 Optogenetic manipulation of mPFC pre-outcome (but not post-outcome) activity drives learning. In contrast, optogenetic manipulation of dopamine post-outcome (but not pre-outcome) activity drives learning.

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  7. 18. pro 2019.

    3/5 Dopamine neurons integrate confidence and reward value both before and after the outcome, encoding the value of chosen option, and reward prediction error.

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  8. 18. pro 2019.

    2/5 Many mPFC neurons integrate confidence and reward value prior to outcome, encoding the value of chosen option.

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  9. 18. pro 2019.

    1/5 We introduce a behavioural task in mice that requires integration of reward value and sensory confidence. Using RL modelling we formalise trial-by-trial learning.

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  10. 18. pro 2019.
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  11. proslijedio/la je Tweet
    16. pro 2019.

    We have a new preprint, just in time to add to your holiday reading list. :)

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  12. proslijedio/la je Tweet
    9. pro 2019.

    I'm thrilled to be starting my research group in at . Interested in deep learning theory and neuroscience? I'm looking for team members!

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  13. proslijedio/la je Tweet
    4. pro 2019.

    Thought that frontal cortex is all random mixed selectivity, messy? Think again! Great work by a great team,

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  14. proslijedio/la je Tweet

    Applying to graduate school? ⁦⁩ has many fantastic opportunities so well worth considering. Labs can also directly sponsor you for departmental PhD programs so feel free to reach out. The location and scholastic environment isn’t too bad either.

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  15. proslijedio/la je Tweet
    27. stu 2019.

    Our work on 'Distributed coding of choice, action, and engagement across the mouse brain' is published today in Nature! With , , and . Here's a quick recap and what's new since bioRxiv.

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  16. proslijedio/la je Tweet
    22. stu 2019.

    I am happy (and a little nervous) to announce our first manuscript posted to bioRxiv! Congratulations to for the great work showing that dopamine responses are sensitive to reward distributions.

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  17. proslijedio/la je Tweet
    11. stu 2019.

    1) Is systems neuroscience your thing? 2) Are you intrigued by the timing of self-initiated actions? 3) Do you dream with electrophys recordings of large neuronal ensembles using cutting-edge technology? 4) Are you looking for a post-doc position? We want you! 👉

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  18. proslijedio/la je Tweet
    11. stu 2019.

    1 day left to apply for ERC-funded postdoc on claustrum, an understudied brain area w/curiously strong connectivity to neocortex. We're after its organising principles using cell type & functional characterisations in vitro & in vivo

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  19. proslijedio/la je Tweet
    8. stu 2019.

    Please RT: Fully funded PhD position to work with myself and to study reward-learning.

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  20. proslijedio/la je Tweet
    23. lis 2019.

    POSTDOCTORAL POSITION in my lab (Jazlab) at MIT to investigate the computational principles and neural mechanisms of inferential reasoning using cognitive maps in the hippocampus, entorhinal cortex, and other candidate brain areas. See more info at

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  21. proslijedio/la je Tweet
    19. lis 2019.

    Roll up roll up. Get your DA stimulus-action association fix from Wednesday afternoon

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