Pouya Bashivan 🇮🇷🇨🇦
@bashivan.bsky.social
200 followers 110 following 30 posts
Husband, dad, computational neuroscientist, @mcgillu.bsky.social and Mila
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Reposted by Pouya Bashivan 🇮🇷🇨🇦
Reposted by Pouya Bashivan 🇮🇷🇨🇦
taylorwwebb.bsky.social
New position paper! We argue that symbolic and neural network models are not in opposition to each other, but occupy different levels of analysis, and also outline a new research agenda for better understanding the relationship between them. Please check out the paper / thread for more details!
rtommccoy.bsky.social
🤖 🧠 NEW PAPER ON COGSCI & AI 🧠 🤖

Recent neural networks capture properties long thought to require symbols: compositionality, productivity, rapid learning

So what role should symbols play in theories of the mind? For our answer...read on!

Paper: arxiv.org/abs/2508.05776

1/n
The top shows the title and authors of the paper: "Whither symbols in the era of advanced neural networks?" by Tom Griffiths, Brenden Lake, Tom McCoy, Ellie Pavlick, and Taylor Webb.

At the bottom is text saying "Modern neural networks display capacities traditionally believed to require symbolic systems. This motivates a re-assessment of the role of symbols in cognitive theories."

In the middle is a graphic illustrating this text by showing three capacities: compositionality, productivity, and inductive biases. For each one, there is an illustration of a neural network displaying it. For compositionality, the illustration is DALL-E 3 creating an image of a teddy bear skateboarding in Times Square. For productivity, the illustration is novel words produced by GPT-2: "IKEA-ness", "nonneotropical", "Brazilianisms", "quackdom", "Smurfverse". For inductive biases, the illustration is a graph showing that a meta-learned neural network can learn formal languages from a small number of examples.
bashivan.bsky.social
did someone forget something at home?
bashivan.bsky.social
I will also give a short talk on our laterally connected topographical neural network model at the first session of “Modeling the Physical Brain: Spatial Organization and Biophysical Constraints”

talk: Monday, Aug 11, 12:15-12:30pm CET, Room A2.07
preprint: www.biorxiv.org/content/bior...
bashivan.bsky.social
@motahareh will present her work on a neural network model of visual search that replicates a wide range of behavioral and neural phenomena while making new predictions about its underlying neural code

poster: C145, Friday, Aug 15, 2-5pm, de Brug & E‑Hall
preprint: www.biorxiv.org/content/10.1...
bashivan.bsky.social
@maximemdaigle.bsky.social will present his work on using neural networks to decode what and how (non)spatially selective hippocampal neurons encode!

talk: Friday, Aug 15, 12–1pm, Room C1.03
poster: C68, Friday, Aug 15, 2-5pm, de Brug & E‑Hall
preprint: www.biorxiv.org/content/bior...
bashivan.bsky.social
We’ll be at CCN next week with two posters, one contributed talk and one satellite talk! If you are interested in neural coding in primate hippocampus, modeling visual search, or cortical topography come and talk to us! See👇for details:
bashivan.bsky.social
Are you thinking of automating the review process? LLMs are already doing some of that. I’m pretty sure at least 25% of reviews at conferences are already LLM-generated.
bashivan.bsky.social
I'm not sure which two papers you are talking about but I didn't notice the PNAS paper I posted in the preprint
bashivan.bsky.social
Went over the Centaur paper in lab meeting today. I got stuck on this plot, thinking initially the small difference between Llama and Centaur is bothering me. But the real issue hit me an hour later... Each layer's neural similarity is with the **whole** brain! No single layer is expected to sim 🧠
bashivan.bsky.social
Congratulations on the paper! It made me think of this paper by Pawan Sinha on developmentally aligned training of neural networks: www.pnas.org/doi/full/10....
It's interesting to see that this procedure leads to much broader robustness than previously thought.
PNAS
Proceedings of the National Academy of Sciences (PNAS), a peer reviewed journal of the National Academy of Sciences (NAS) - an authoritative source of high-impact, original research that broadly spans...
www.pnas.org
bashivan.bsky.social
Grant reviewer on my proposal for using DNNs to model working memory: “The ability to yield new information is very limited because WM circuits have already been abundantly specified in clinical and preclinical studies.” So, it’s entirely solved now, eh? How long did I sleep last night?
Reposted by Pouya Bashivan 🇮🇷🇨🇦
shahabbakht.bsky.social
Huge congratulations to @silicolabs.bsky.social on this achievement.

Excited about this collaboration on visuomotor learning in VR.

We also have some funding available for graduate students interested in doing research in this area. Reach out if you're interested.

🧠📈 🧠🤖 #VisionScience
silicolabs.bsky.social
We're thrilled to announce we're recipients of the QC Science Impact Grant by Esplanade Québec & Fonds de recherche du Québec! This $10,000 grant supports a collaborative research project with Dr. @shahabbakht.bsky.social.
esplanade.quebec/16-entrepris...
Les lauréat.e.s du programme Science Impact- Esplanade Québec
Grâce aux FRQ, des bourses de 10 000 $ ont été remises à des startups souhaitant réaliser des projets de recherche.
esplanade.quebec
bashivan.bsky.social
Self supervised learning of spatial representations from episodic memories. Led by undergraduate student in my lab. Very proud!
herbiehe.bsky.social
🧠 Can a neural network build a spatial map from scattered episodic experiences like humans do?

We introduce the Episodic Spatial World Model (ESWM)—a model that constructs flexible internal world models from sparse, disjoint memories.

🧵👇 [1/12]
bashivan.bsky.social
Congratulations Dan! I’m sure you’ll do great things in your lab.
Reposted by Pouya Bashivan 🇮🇷🇨🇦
hannesmehrer.bsky.social
Announcement: Workshop at #CCN2025
🧠 Modeling the Physical Brain: Spatial Organization & Biophysical Constraints
🗓️ Monday, Aug 11 | 🕦 11:30–18:00 CET | 📍 Room A2.07
🔗 Register: tinyurl.com/CCN-physical...
#NeuroAI @cogcompneuro.bsky.social
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bashivan.bsky.social
If you are at #ICLR2025 and interested in topographic neural networks, come by @amirozhan.bsky.social 's poster. See the info below!
amirozhan.bsky.social
I’ll be at @iclr-conf.bsky.social presenting our work “Credit-based self organizing maps: training deep topographic networks with minimal performance degradation” — if you're into #NeuroAI, cortical topography, vision, or just up for a good convo, drop by and DM me! 🧠✨
Reposted by Pouya Bashivan 🇮🇷🇨🇦
savethecbc.bsky.social
Don’t let Poilievre crush your CBC crush!

From Paul Gross to Peter Mansbridge, Catherine O’Hara to the Levys—CBC has brought us icons we’ve loved for decades.

Lose CBC, lose the crushes.

#SaveTheCBC #CBCrushed #OurVoiceOurCBC #CdnPoli #PublicBroadcasting
Reposted by Pouya Bashivan 🇮🇷🇨🇦
utoronto.ca
Renowned neuroscientist Melanie Woodin has been named #UofT’s 17th president — and asks the community to join in her in “dreaming big.” #UofT alumna Woodin starts her five-year term July 1st. ➡️ uoft.me/uoftpres17