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nosrat.bsky.social
Nosrat Mohammadi
@nosrat.bsky.social
790 followers 1K following 240 posts
PhD candidate in computational neuroscience, university of Geneva. Studying the dynamical properties of neural activity during speech processing.💻🧠 webpage: nosratullah.github.io
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nosrat.bsky.social
Nosrat Mohammadi @nosrat.bsky.social · Dec 20
🧵(1/n) I'm thrilled to announce that I published my very first! pre-print on BioRxiv. This work was co-supervised by Wilson Truccolo and Timothée Proix @ndlab.bsky.social.
www.biorxiv.org/content/10.1...
🧠🧪 #compneuro
From spiking neuronal networks to interpretable dynamics: a diffusion-approximation framework
Modeling and interpreting the complex recurrent dynamics of neuronal spiking activity is essential to understanding how networks implement behavior and cognition. Nonlinear Hawkes process models can c...
www.biorxiv.org
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Reposted by Nosrat Mohammadi
bio-emergent.bsky.social
Valentin Schmutz @bio-emergent.bsky.social · 19d
🎉 "High-dimensional neuronal activity from low-dimensional latent dynamics: a solvable model" will be presented as an oral at #NeurIPS2025 🎉

Feeling very grateful that reviewers and chairs appreciated concise mathematical explanations, in this age of big models.

www.biorxiv.org/content/10.1...
1/2
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modirshanechi.bsky.social
Alireza Modirshanechi @modirshanechi.bsky.social · 10d
New in @pnas.org: doi.org/10.1073/pnas...

We study how humans explore a 61-state environment with a stochastic region that mimics a “noisy-TV.”

Results: Participants keep exploring the stochastic part even when it’s unhelpful, and novelty-seeking best explains this behavior.

#cogsci #neuroskyence
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Reposted by Nosrat Mohammadi
fatemehhadaeghi.bsky.social
Fatemeh_Hadaeghi @fatemehhadaeghi.bsky.social · 11d
🚨 New preprint!
“A Computational Perspective on the No-Strong-Loops Principle in Brain Networks”
www.biorxiv.org/content/10.1...

Over the past 3 years, we’ve been investigating why cortical networks avoid strong reciprocal loops — and what this means for computation.
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Reposted by Nosrat Mohammadi
kristorpjensen.bsky.social
Kris Jensen @kristorpjensen.bsky.social · 14d
I’m super excited to finally put my recent work with @behrenstimb.bsky.social on bioRxiv, where we develop a new mechanistic theory of how PFC structures adaptive behaviour using attractor dynamics in space and time!

www.biorxiv.org/content/10.1...
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Reposted by Nosrat Mohammadi
mamassian.bsky.social
Pascal Mamassian @mamassian.bsky.social · 14d
A nice shift in perceived colour between central and peripheral vision. The fixated disc looks purple while the others look blue.

The effect presumably comes from the absence of S-cones in the fovea.

From Hinnerk Schulz-Hildebrandt:
arxiv.org/pdf/2509.115...
An array of 9 purple discs on a blue background. Figure from Hinnerk Schulz-Hildebrandt.
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nosrat.bsky.social
Nosrat Mohammadi @nosrat.bsky.social · 17d
I'll try this! Thanks!
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Reposted by Nosrat Mohammadi
neural-reckoning.org
Dan Goodman @neural-reckoning.org · 20d
New preprint! What happens if you add neuromodulation to spiking neural networks and let them go wild with it? TLDR: it can improve performance especially in challenging sensory processing tasks. Explainer thread below. 🤖🧠🧪 www.biorxiv.org/content/10.1...
Neuromodulation enhances dynamic sensory processing in spiking neural network models
Neuromodulators allow circuits to dynamically change their biophysical properties in a context-sensitive way. In addition to their role in learning, neuromodulators have been suggested to play a role ...
www.biorxiv.org
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Reposted by Nosrat Mohammadi
richardsever.bsky.social
Richard Sever @richardsever.bsky.social · 20d
bioRxiv partners with Dryad to enable easier, better linking to curated datasets connect.biorxiv.org/news/2025/09...
Dryad partnership brings easier data sharing to bioRxiv
bioRxiv - the preprint server for biology, operated by Cold Spring Harbor Laboratory, a research and educational institution
connect.biorxiv.org
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Reposted by Nosrat Mohammadi
neural-reckoning.org
Dan Goodman @neural-reckoning.org · 22d
Submissions (short!) due for SNUFA spiking neural networks conference in <2 weeks! 🤖🧠🧪

forms.cloud.microsoft/e/XkZLavhaJe

More info at snufa.net/2025/

Note that we normally get around 700 participants and recordings go on YouTube and get 100s-1000s views.

Please repost.
SNUFA 2025
Spiking Neural networks as Universal Function Approximators
snufa.net
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Reposted by Nosrat Mohammadi
rhythmicspikes.bsky.social
Abhilasha Joshi, PhD @rhythmicspikes.bsky.social · 21d
1/
🚨 New preprint! 🚨

Excited and proud (& a little nervous 😅) to share our latest work on the importance of #theta-timescale spiking during #locomotion in #learning. If you care about how organisms learn, buckle up. 🧵👇

📄 www.biorxiv.org/content/10.1...
💻 code + data 🔗 below 🤩

#neuroskyence
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Reposted by Nosrat Mohammadi
mariamaly.bsky.social
Mariam Aly @mariamaly.bsky.social · 22d
How do we update our predictions when our environment changes?

The hippocampus rapidly integrates previously distinct sequences to support updated predictions.

Proud of this work with Hannah Tarder-Stoll & @chrisbaldassano.bsky.social!

www.biorxiv.org/content/10.1...
The Hippocampus Rapidly Integrates Sequence Representations During Novel Multistep Predictions
Memories for temporally extended sequences can be used adaptively to predict future events on multiple timescales, a function that relies on the hippocampus. For such predictions to be useful, they sh...
www.biorxiv.org
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Reposted by Nosrat Mohammadi
apeyrache.bsky.social
Adrien Peyrache @apeyrache.bsky.social · 22d
🚨New preprint alert!

The thalamus has long been seen as a relay of sensory signals to cortex.
But could it also generate its own structured activity?
Our study explores this question in the head-direction (HD) system.

Some explanation 🧵👇 1/13

www.biorxiv.org/content/10.1...
Coherent dynamics of thalamic head-direction neurons irrespective of input
While the thalamus is known to relay and modulate sensory signals to the cortex, whether it also participates in active computation and intrinsic signal generation remains unresolved. The anterodorsal...
www.biorxiv.org
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Reposted by Nosrat Mohammadi
suryaganguli.bsky.social
Surya Ganguli @suryaganguli.bsky.social · 22d
Our new paper "High-capacity associative memory in a quantum-optical spin glass." Achieves 7-fold increased capacity thru a quantum optical analog of short term plasticity from neuroscience. Atoms (neurons) couple to motion and photons (synapses)!
arxiv.org/abs/2509.12202
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Reposted by Nosrat Mohammadi
drbreaky.bsky.social
DrBreaky @drbreaky.bsky.social · 24d
Interested in hippocampal dynamics and their interactions with cortical rhythms?

Our physically constrained model of cortico-hippocampal interactions - complete with fast geometrically informed numerical simulation (available at embedded github repo)

www.biorxiv.org/content/10.1...
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Reposted by Nosrat Mohammadi
bluedebris.bsky.social
Alessio Quaresima @bluedebris.bsky.social · 24d
Hey #neuroskyence #compneurosky

I made this interactive tool for showing the phase planes of 2D neuron models to studs!

Have fun :)

github.com/JuliaSNN/Com...
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Reposted by Nosrat Mohammadi
hakwan.bsky.social
hakwan lau @hakwan.bsky.social · 25d
www.biorxiv.org/content/10.1...

Representational Geometries of Perception and Working Memory: A Pilot Study

Tomoya Nakamura's first fMRI project

... in which we hereby release a preprint as a way of pre-registration

🧠📈
Representational Geometries of Perception and Working Memory: A Pilot Study
This study aims to compare the neural representational geometry of visual perception and visual working memory using human fMRI. In our pilot experiment, observers viewed a face-scene blended image (s...
www.biorxiv.org
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Reposted by Nosrat Mohammadi
mace-lab.bsky.social
Emilie Macé @mace-lab.bsky.social · 27d
Thrilled to share that our work is now published in Science! ✨

We found a preference for visual objects in the mouse spatial navigation system where they dynamically refine head-direction coding. In short, objects boost our inner compass! 🧭

www.science.org/doi/10.1126/...

🧵1/
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Reposted by Nosrat Mohammadi
hiallen72.bsky.social
Ching-Lung Hsu @hiallen72.bsky.social · 27d
Universal statistics of hippocampal place fields across species and dimensionalities www.cell.com/neuron/fullt...
Universal statistics of hippocampal place fields across species and dimensionalities
Mainali et al. show that a simple mathematical model explains recent observations of heterogeneous and irregular spatial responses in the hippocampus in large environments. The model unifies observati...
www.cell.com
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Reposted by Nosrat Mohammadi
avsp.bsky.social
Auditory-Visual Speech Association (AVISA) @avsp.bsky.social · 27d
Neural entrainment by speech in human auditory cortex revealed by intracranial recordings www.sciencedirect.com/science/arti... 12 people had intracranial electrodes & listened to natural speech oscillatory -> speech edge induced activity persisted after evoked responses thus ...neural entrainment?
Neural entrainment by speech in human auditory cortex revealed by intracranial recordings
Humans live in an environment that contains rich auditory stimuli, which must be processed efficiently. The entrainment of neural oscillations to acou…
www.sciencedirect.com
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Reposted by Nosrat Mohammadi
anayebi.bsky.social
Aran Nayebi @anayebi.bsky.social · 27d
In today's Generative AI lecture, we cover Vision Transformers (as well as the broader notion of Encoder-Only Transformers).

We also explain the historical throughline to some of these ideas, inspired by Nobel-prize-winning observations in neuroscience!
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nosrat.bsky.social
Nosrat Mohammadi @nosrat.bsky.social · Sep 6
All at once!
samueleckmann.bsky.social
Samuel Eckmann @samueleckmann.bsky.social · Sep 3
Everything Everywhere ...
intlbrainlab.bsky.social
International Brain Laboratory @intlbrainlab.bsky.social · Sep 3
Two flagship papers from the International Brain Laboratory, now out in ‪@Nature.com‬:
🧠 Brain-wide map of neural activity during complex behaviour: doi.org/10.1038/s41586-025-09235-0
🧠 Brain-wide representations of prior information in mouse decision-making: doi.org/10.1038/s41586-025-09226-1 +
Reposted by Nosrat Mohammadi
hayoungsong.bsky.social
Hayoung Song @hayoungsong.bsky.social · Sep 5
How does the brain🧠 make causal inferences and use memories to understand narratives🎬?

We built an RNN🤖 with key-value episodic memory that learns causal relationships between events and retrieves memories like humans do!

Preprint www.biorxiv.org/content/10.1...

w/ @qlu.bsky.social, Tan Nguyen &👇
A neural network with episodic memory learns causal relationships between narrative events
Humans reflect on past memories to make sense of an ongoing event. Past work has shown that people retrieve causally related past events during comprehension, but the exact process by which this causa...
www.biorxiv.org
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Reposted by Nosrat Mohammadi
intlbrainlab.bsky.social
International Brain Laboratory @intlbrainlab.bsky.social · Sep 3
Two flagship papers from the International Brain Laboratory, now out in ‪@Nature.com‬:
🧠 Brain-wide map of neural activity during complex behaviour: doi.org/10.1038/s41586-025-09235-0
🧠 Brain-wide representations of prior information in mouse decision-making: doi.org/10.1038/s41586-025-09226-1 +
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Reposted by Nosrat Mohammadi
shiyanliang.bsky.social
Yanliang Shi @shiyanliang.bsky.social · Sep 2
Excited to share our new preprint on the brain-wide organization of intrinsic timescales at single neuron resolution. Work w/ @roxana-zeraati.bsky.social, @intlbrainlab.bsky.social, Anna Levina, @engeltatiana.bsky.social : www.biorxiv.org/content/10.1...
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nosrat.bsky.social
Nosrat Mohammadi @nosrat.bsky.social · Aug 31
break a leg!
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