Armin Bazarjani
@arminbazza.bsky.social
PhD Student at USC studying how biological and artificial brains construct flexible and reusable representations of the world
arminbaz.github.io
arminbaz.github.io
Reposted by Armin Bazarjani
New paper with @nathanieldaw.bsky.social in Nature Communications: an RL model that builds a successor map compositionally. The new model plans as well as the best models, and it links components of the map used for planning to neural codes in the medial entorhinal cortex.
rdcu.be/eAofi
rdcu.be/eAofi
Reconciling flexibility and efficiency: medial entorhinal cortex represents a compositional cognitive map
Nature Communications - How the brain creates compositional cognitive maps that support both flexible and efficient planning remains poorly understood. Here, authors propose a...
rdcu.be
August 12, 2025 at 5:18 PM
New paper with @nathanieldaw.bsky.social in Nature Communications: an RL model that builds a successor map compositionally. The new model plans as well as the best models, and it links components of the map used for planning to neural codes in the medial entorhinal cortex.
rdcu.be/eAofi
rdcu.be/eAofi
Reposted by Armin Bazarjani
RFK Jr. just fired thousands of federal workers at crucial health agencies, including the FDA, CDC, and NIH.
These are the people who inspect our food, track infectious diseases, and research life-saving treatments and cures.
How is this "Making America Healthy Again"?
These are the people who inspect our food, track infectious diseases, and research life-saving treatments and cures.
How is this "Making America Healthy Again"?
July 16, 2025 at 6:31 PM
RFK Jr. just fired thousands of federal workers at crucial health agencies, including the FDA, CDC, and NIH.
These are the people who inspect our food, track infectious diseases, and research life-saving treatments and cures.
How is this "Making America Healthy Again"?
These are the people who inspect our food, track infectious diseases, and research life-saving treatments and cures.
How is this "Making America Healthy Again"?
Reposted by Armin Bazarjani
1/ Thrilled to start on Bluesky with our latest publication in Nature Neuroscience (@natneuro.nature.com) – and huge congratulations to RoryBufacchi who led this work (first at @ucl.ac.uk and then @iitalk.bsky.social) with extraordinary insight and fastidiousness.
Free full text: rdcu.be/eo3G3
Free full text: rdcu.be/eo3G3
Egocentric value maps of the near-body environment
Nature Neuroscience - Some neurons act like body-proximity sensors. The authors show that these neurons reflect the value of contacting or avoiding objects. Together, these neurons compose a...
rdcu.be
June 4, 2025 at 9:51 AM
1/ Thrilled to start on Bluesky with our latest publication in Nature Neuroscience (@natneuro.nature.com) – and huge congratulations to RoryBufacchi who led this work (first at @ucl.ac.uk and then @iitalk.bsky.social) with extraordinary insight and fastidiousness.
Free full text: rdcu.be/eo3G3
Free full text: rdcu.be/eo3G3
Reposted by Armin Bazarjani
Our work, out at Cell, shows that the brain’s dopamine signals teach each individual a unique learning trajectory. Collaborative experiment-theory effort, led by Sam Liebana in the lab. The first experiment my lab started just shy of 6y ago & v excited to see it out: www.cell.com/cell/fulltex...
June 11, 2025 at 3:18 PM
Our work, out at Cell, shows that the brain’s dopamine signals teach each individual a unique learning trajectory. Collaborative experiment-theory effort, led by Sam Liebana in the lab. The first experiment my lab started just shy of 6y ago & v excited to see it out: www.cell.com/cell/fulltex...
Reposted by Armin Bazarjani
new paper from a collaborative endeavor! (@co0p3r.bsky.social) we find & replicate food-reward biases in a reinforcement learning task (where food stim are incidental)
people with eating disorder symptoms show a low-calorie food bias while those without show a high-calorie food bias... (1/3)
people with eating disorder symptoms show a low-calorie food bias while those without show a high-calorie food bias... (1/3)
Eating disorder symptoms and emotional arousal modulate food biases during reward learning in females - Nature Communications
Disordered eating can disrupt the rewarding value of food. Here, the authors show in a female sample that eating disorder symptoms, emotional arousal, and interoceptive awareness modulate goal-ir...
www.nature.com
May 29, 2025 at 4:38 PM
new paper from a collaborative endeavor! (@co0p3r.bsky.social) we find & replicate food-reward biases in a reinforcement learning task (where food stim are incidental)
people with eating disorder symptoms show a low-calorie food bias while those without show a high-calorie food bias... (1/3)
people with eating disorder symptoms show a low-calorie food bias while those without show a high-calorie food bias... (1/3)
Reposted by Armin Bazarjani
A model of compositional state spaces in the #hippocampus shows latent learning and rapid generalisation, and predicts the emergence of place responses in replay – which is discovered empirically in an existing dataset 🧪🧠
www.nature.com/articles/s41...
www.nature.com/articles/s41...
Constructing future behavior in the hippocampal formation through composition and replay - Nature Neuroscience
A model of compositional state spaces in the hippocampus shows latent learning and rapid generalization. Bakermans et al. show that this model predicts the emergence of place responses in replay.
www.nature.com
March 12, 2025 at 10:34 AM
A model of compositional state spaces in the #hippocampus shows latent learning and rapid generalisation, and predicts the emergence of place responses in replay – which is discovered empirically in an existing dataset 🧪🧠
www.nature.com/articles/s41...
www.nature.com/articles/s41...
Reposted by Armin Bazarjani
Our new paper explores how to align LLMs with System 1 (intuitive) and System 2 (analytical) thinking styles. This work challenges the idea that step-by-step reasoning (CoT) is always best and highlights the need for adapting reasoning strategies based on the task
arxiv.org/abs/2502.12470
arxiv.org/abs/2502.12470
February 19, 2025 at 10:00 PM
Our new paper explores how to align LLMs with System 1 (intuitive) and System 2 (analytical) thinking styles. This work challenges the idea that step-by-step reasoning (CoT) is always best and highlights the need for adapting reasoning strategies based on the task
arxiv.org/abs/2502.12470
arxiv.org/abs/2502.12470
Reposted by Armin Bazarjani
📣 Excited to announce our workshop "Agent-Based Models in Neuroscience: Complex Planning, Embodiment, and Beyond" at the upcoming @cosynemeeting.bsky.social #CoSyNe2025! 🧠🤖 🪱🪰🐟🐝🐭💪
Schedule: neuro-agent-models.github.io
🗓️ Join us in Mont-Tremblant, Canada, on March 31!
Schedule: neuro-agent-models.github.io
🗓️ Join us in Mont-Tremblant, Canada, on March 31!
Workshop Title
neuro-agent-models.github.io
February 18, 2025 at 6:11 PM
📣 Excited to announce our workshop "Agent-Based Models in Neuroscience: Complex Planning, Embodiment, and Beyond" at the upcoming @cosynemeeting.bsky.social #CoSyNe2025! 🧠🤖 🪱🪰🐟🐝🐭💪
Schedule: neuro-agent-models.github.io
🗓️ Join us in Mont-Tremblant, Canada, on March 31!
Schedule: neuro-agent-models.github.io
🗓️ Join us in Mont-Tremblant, Canada, on March 31!
Reposted by Armin Bazarjani
🖌️☺️🧪
“Some scientists, I think, are in this sense poets.” - Wendell Berry
“Some scientists, I think, are in this sense poets.” - Wendell Berry
A beautiful meditation on #science and #creativity by @jailbirdjenna.bsky.social. Do yourself a favor and read it. It’ll brighten your spirits on this dark day.
www.joearvai.org/all-cup-of-j...
www.joearvai.org/all-cup-of-j...
Practice Resurrection — Joe Árvai
Reflections on creativity and science in Marfa, Texas.
www.joearvai.org
January 29, 2025 at 8:11 PM
🖌️☺️🧪
“Some scientists, I think, are in this sense poets.” - Wendell Berry
“Some scientists, I think, are in this sense poets.” - Wendell Berry
Reposted by Armin Bazarjani
Please share: I have a friend with access to food trucks in LA that is looking for locations to set them up this weekend that will be useful to the largest number of people and will allow a food truck to park there. Not looking for suggestions but actual contacts
January 11, 2025 at 8:56 PM
Please share: I have a friend with access to food trucks in LA that is looking for locations to set them up this weekend that will be useful to the largest number of people and will allow a food truck to park there. Not looking for suggestions but actual contacts
Reposting this from X so my page isn't so barren...
Are you a fan of @payampiray.bsky.social's Linear RL model but not of MATLAB? I coded a barebones version of it in Python!
Are you a fan of @payampiray.bsky.social's Linear RL model but not of MATLAB? I coded a barebones version of it in Python!
GitHub - ArminBaz/LinearRL: Python implementation of the Linear Reinforcement Learning model introduced by Piray and Daw (2021)
Python implementation of the Linear Reinforcement Learning model introduced by Piray and Daw (2021) - ArminBaz/LinearRL
github.com
November 18, 2024 at 1:14 AM
Reposting this from X so my page isn't so barren...
Are you a fan of @payampiray.bsky.social's Linear RL model but not of MATLAB? I coded a barebones version of it in Python!
Are you a fan of @payampiray.bsky.social's Linear RL model but not of MATLAB? I coded a barebones version of it in Python!