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Zachary Friedenberger

@friedenberger.bsky.social

Theoretical Neuroscience | Physics PhD candidate at the University of Ottawa 🇨🇦 | Interested in how neural networks encode information and compute | BJJ hobbyist

120 Followers  |  434 Following  |  2 Posts  |  Joined: 05.10.2023
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Posts by Zachary Friedenberger (@friedenberger.bsky.social)

A Clever Title Is All You Need

12.06.2025 18:39 — 👍 3    🔁 0    💬 0    📌 0
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A prospective code for value in the serotonin system - Nature Merging ideas from reinforcement learning theory with recent insights into the filtering properties of the dorsal raphe nucleus, a unifying perspective is found explaining why serotonin neurons are ac...

I'm excited to share that the last chapter of my PhD thesis is now published in Nature! 🍾

What drives serotonin neurons? We think it's the expectation of future reward and --- critically --- how fast this expectation is increasing. 📈

doi.org/10.1038/s415...

1/6

27.03.2025 21:04 — 👍 134    🔁 46    💬 9    📌 3
Teaser for COSYNE2025 poster titled "A prospective code for value in the serotonin system".

Teaser for COSYNE2025 poster titled "A prospective code for value in the serotonin system".

What makes serotonin neurons tick?

Stop by #COSYNE2025 poster 1-116 on Thursday to hear about how an energy-efficient code for value explains the in vivo responses of serotonin neurons to rewards and punishments. 1/3

24.03.2025 12:38 — 👍 12    🔁 3    💬 1    📌 0
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How to put all complexity in a single drawing? Here's my take, with catastrophes (the folded surface), ecosystems, computation (Turing Machine), turbulence, collective intelligence, nonlinear dynamics and chaos, evolution, viruses, networks and time. And a little touch of Santa Fe NM

11.03.2025 18:24 — 👍 40    🔁 15    💬 0    📌 0

Post a photo you took with no context to bring some zen to the timeline.

11.03.2025 11:30 — 👍 13    🔁 1    💬 0    📌 1