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Phillip Witkowski

@phillip-witkowski

Neuroscientist at the National Institute on Drug Addiction interested in learning and decision making. I'm also an avid historical fencer and learning to woodwork! Check out my google site here: https://sites.google.com/view/pwitkowski?usp=sharing

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09.12.2024
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Latest posts by Phillip Witkowski @phillip-witkowski

CCN Lab

🚨 We’re hiring! The Computational Cognitive Neuroscience Lab at Virginia Tech is looking for a postdoc to join our team studying the neural + computational mechanisms of structure learning and flexible cognition: ccnvt.github.io#positions

10.07.2025 12:17 πŸ‘ 29 πŸ” 19 πŸ’¬ 1 πŸ“Œ 1

(5/5) Together, our results highlight the importance of lateral OFC and hippocampus during learning and support reinstatement as key process for building causal associations. This works makes a novel contribution to understanding the neural mechanisms which underlie causal learning complex tasks.

16.04.2025 17:12 πŸ‘ 0 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0
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(4/5) In a second condition where outcomes were observed only after another choice was made, we show that the frontal pole holds on to the previous choice, and the fidelity of this representation predicts the fidelity of information in OFC and hippocampus when the outcome is finally observed.

16.04.2025 17:12 πŸ‘ 0 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0
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(3/5) Participants tracked which of two choices would lead to specific gift-cards to receive the highest valued outcome in each trial. We show that lateral OFC and hippocampus β€œreinstate” information about causal choices when learners viewed outcomes, which supports updating choice-outcome links.

16.04.2025 17:12 πŸ‘ 1 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0

(2/5) The ability to link specific states or actions to specific outcomes is critical for surviving in complex environments. Our study aimed at discerning how the brain forges these links during learning, and what happens when outcomes don’t directly follow a choice.

16.04.2025 17:12 πŸ‘ 0 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0
Preview
Neural mechanisms of credit assignment for delayed outcomes during contingent learning Orbitofrontal cortex and hippocampus reinstate representations of causal choices to associate with delayed outcomes, and the frontal pole supports this credit assignment process by maintaining pending...

I'm excited to share that the VOR for my latest manuscript with Lindsay Rondot, Zeb Kurth-Nelson, @mgarvert.bsky.social , Ray Dolan, @behrenstimb.bsky.social and Erie Boorman, is out in @elife.bsky.social !

Check it out here: elifesciences.org/articles/101...

A short thread below 🧡 (1/5):

16.04.2025 17:12 πŸ‘ 17 πŸ” 7 πŸ’¬ 3 πŸ“Œ 1