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
A Clever Title Is All You Need
At this point I suspect ML researchers start with the clever title and work backwards.
June 12, 2025 at 6:38 PM
A Clever Title Is All You Need
Reposted by Zachary Friedenberger
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
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
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...
doi.org
March 27, 2025 at 9:04 PM
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
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
Reposted by Zachary Friedenberger
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
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
March 24, 2025 at 12:39 PM
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
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
Reposted by Zachary Friedenberger
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
March 11, 2025 at 6:24 PM
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
Post a photo you took with no context to bring some zen to the timeline.
March 11, 2025 at 11:30 AM
Post a photo you took with no context to bring some zen to the timeline.