Amr Farahat
banner
amr-farahat.bsky.social
Amr Farahat
@amr-farahat.bsky.social
MD/M.Sc/PhD candidate @ESI_Frankfurt and IMPRS for neural circuits @MpiBrain. Medicine, Neuroscience & AI
https://amr-farahat.github.io/
Pinned
🧵 time!
1/15
Why are CNNs so good at predicting neural responses in the primate visual system? Is it their design (architecture) or learning (training)? And does this change along the visual hierarchy?
🧠🤖
🧠📈
Reposted by Amr Farahat
🚨Our NeurIPS 2025 competition Mouse vs. AI is LIVE!

We combine a visual navigation task + large-scale mouse neural data to test what makes visual RL agents robust and brain-like.

Top teams: featured at NeurIPS + co-author our summary paper. Join the challenge!

Whitepaper: arxiv.org/abs/2509.14446
Mouse vs. AI: A Neuroethological Benchmark for Visual Robustness and Neural Alignment
Visual robustness under real-world conditions remains a critical bottleneck for modern reinforcement learning agents. In contrast, biological systems such as mice show remarkable resilience to environ...
arxiv.org
September 22, 2025 at 11:13 PM
Reposted by Amr Farahat
Visual image reconstruction from brain activity via latent representation www.annualreviews.org/content/jour... by @ykamit.bsky.social et al.; mental imagery, #neuroscience
September 18, 2025 at 9:11 AM
Reposted by Amr Farahat
New paper in Imaging Neuroscience by Tom Dupré la Tour, Matteo Visconti di Oleggio Castello, and Jack L. Gallant:

The Voxelwise Encoding Model framework: A tutorial introduction to fitting encoding models to fMRI data

doi.org/10.1162/imag...
May 16, 2025 at 2:08 AM
Reposted by Amr Farahat
(1/6) Thrilled to share our triple-N dataset (Non-human Primate Neural Responses to Natural Scenes)! It captures thousands of high-level visual neuron responses in macaques to natural scenes using #Neuropixels.
May 11, 2025 at 1:33 PM
Reposted by Amr Farahat
Reposted by Amr Farahat
Improvements to brain–computer interfaces are bringing the technology closer to natural conversation speed. www.nature.com/articles/d41...
Brain implant translates thoughts to speech in an instant
Improvements to brain–computer interfaces are bringing the technology closer to natural conversation speed.
www.nature.com
April 1, 2025 at 7:26 AM
🧵 time!
1/15
Why are CNNs so good at predicting neural responses in the primate visual system? Is it their design (architecture) or learning (training)? And does this change along the visual hierarchy?
🧠🤖
🧠📈
March 13, 2025 at 9:34 PM
Reposted by Amr Farahat
Happy to see this study led by Irene Onorato finally out - we show distinct phase locking and spike timing of optotagged PV cells and Sst interneuron subtypes during gamma oscillations in mouse visual cortex, suggesting an update to the classic PING model www.sciencedirect.com/science/arti...
Distinct roles of PV and Sst interneurons in visually induced gamma oscillations
Gamma-frequency oscillations are a hallmark of active information processing and are generated by interactions between excitatory and inhibitory neuro…
www.sciencedirect.com
March 6, 2025 at 10:22 PM

🚨Preprint Alert

New work with @martinavinck.bsky.social

We elucidate the architectural bias that enables CNNs to predict early visual cortex responses in macaques and humans even without optimization of convolutional kernels.

🧠🤖
🧠📈
Neural responses in early, but not late, visual cortex are well predicted by random-weight CNNs with sufficient model complexity https://www.biorxiv.org/content/10.1101/2025.02.05.636721v1
February 8, 2025 at 3:06 PM
Reposted by Amr Farahat
Somewhat old news here, but since I'm switching over from the other site:

Happy to announce that my Computational Neuroscience textbook was published by MIT Press.

The text and code is freely accessible:
mitpress.mit.edu/978026254808... (click Open Access)

drive.google.com/drive/folder...

(1/n)
Modeling Neural Circuits Made Simple with Python
An accessible undergraduate textbook in computational neuroscience that provides an introduction to the mathematical and computational modeling of neurons an...
mitpress.mit.edu
January 27, 2025 at 6:20 PM
Reposted by Amr Farahat
If you want people to understand what you're doing, don't put figures and tables at the end.

Sincerely,
Everyone
January 27, 2025 at 8:23 AM
Reposted by Amr Farahat
This book now available *open access* through Springer Neuromethods: link.springer.com/book/10.1007....

@brainalien.bsky.social and I extend heartfelt thanks to all contributing authors for their exceptional work, w/ special gratitude to Paul Thompson @ptenigma.bsky.social for an inspiring foreword
Methods for Analyzing Large Neuroimaging Datasets
This Open Access volume explores advancements in methodologies, efficient code management, and scalable data processing of neuroimaging datasets.
link.springer.com
January 13, 2025 at 12:05 PM
Reposted by Amr Farahat
My talk from MAIN2024 is online! www.youtube.com/watch?v=nakA...
January 6, 2025 at 6:37 PM
💯
January 5, 2025 at 5:09 PM
Reposted by Amr Farahat
(1/3) 🌟New preprint with @lynnkasorensen.bsky.social and Jim DiCarlo

When animals learn new object discrimination tasks, how much does their IT cortex change?

www.biorxiv.org/content/10.1...
The effects of object category training on the responses of macaque inferior temporal cortex are consistent with performance-optimizing updates within a visual hierarchy
How does the primate brain coordinate plasticity to support its remarkable ability to learn object categories? To address this question, we measured the consequences of category learning on the macaqu...
www.biorxiv.org
December 30, 2024 at 5:58 PM
Reposted by Amr Farahat
Playing around with PyTorch for neuroscience made easy : NeuroTorch: A Python library for neuroscience-oriented machine learning biorxiv.org/cgi/cont... #biorxiv_neursci #neuroscience #neuroAI
NeuroTorch: A Python library for neuroscience-oriented machine learning
Machine learning (ML) has become a powerful tool for data analysis, leading to significant advances in neuroscience research. While ML algorithms are proficient in general-purpose tasks, their highly technical nature often hinders their compatibility with the observed biological principles and constraints in the brain, thereby limiting their suitability for neuroscience applications. In this work, we introduce NeuroTorch, a comprehensive ML pipeline specifically designed to assist neuroscientists in leveraging ML techniques using biologically inspired neural network models. NeuroTorch enables the training of recurrent neural networks equipped with either spiking or firing-rate dynamics, incorporating additional biological constraints such as Dale's law and synaptic excitatory-inhibitory balance. The pipeline offers various learning methods, including backpropagation through time and eligibility trace forward propagation, aiming to allow neuroscientists to effectively employ ML approaches. To evaluate the performance of NeuroTorch, we conducted experiments on well-established public datasets for classification tasks, namely MNIST, Fashion-MNIST, and Heidelberg. Notably, NeuroTorch achieved accuracies that replicated the results obtained using the Norse and SpyTorch packages. Additionally, we tested NeuroTorch on real neuronal activity data obtained through volumetric calcium imaging in larval zebrafish. On training sets representing 9.3 minutes of activity under darkflash stimuli from 522 neurons, the mean proportion of variance explained for the spiking and firing-rate neural network models, subject to Dale's law, exceeded 0.97 and 0.96, respectively. Our analysis of networks trained on these datasets indicates that both Dale's law and spiking dynamics have a beneficial impact on the resilience of network models when subjected to connection ablations. NeuroTorch provides an accessible and well-performing tool for neuroscientists, granting them access to state-of-the-art ML models used in the field without requiring in-depth expertise in computer science. ### Competing Interest Statement The authors have declared no competing interest.
biorxiv.org
December 30, 2024 at 3:18 PM
Reposted by Amr Farahat
All INCF Assembly 2024 recordings have been uploaded to INCF TrainingSpace: our free, open, online training platform!

They are grouped into a collection and divided into courses - eg. all Session 1 talks are under Session 1's course etc.

See the video collection here: bit.ly/4ffTGy8
December 15, 2024 at 5:40 PM
Reposted by Amr Farahat
Neuroscience students asked us to teach a PRACTICAL course on experimental methods, and it is now on YouTube!

Please like and repost to help us get the word out!

www.youtube.com/playlist?lis...

Lecture 1: Signals and data acquisition
Focusing on hardware, digital/analog I/O, synchronization
🧵
Neuroscience methods - YouTube
Nanocourse: Approaches to Study Neural Circuits This course was taught by Anita Autry, Tiago Gonçalves, and Luke Sjulson at Albert Einstein College of Medici...
www.youtube.com
December 13, 2024 at 11:33 AM
Reposted by Amr Farahat
I think this paper explains the concept of Computational Psychiatry really well: doi.org/10.1038/nn.4...
Computational psychiatry as a bridge from neuroscience to clinical applications - Nature Neuroscience
The complexity of problems and data in psychiatry requires powerful computational approaches. Computational psychiatry is an emerging field encompassing mechanistic theory-driven models and theoretica...
doi.org
December 10, 2024 at 12:43 PM
Reposted by Amr Farahat
💯

Hallucination is totally the wrong word, implying it is perceiving the world incorrectly.

But it's generating false, plausible sounding statements. Confabulation is literally the perfect word.

So, let's all please start referring to any junk that an LLM makes up as "confabulations".
petition to change the word describing ChatGPT's mistakes from 'hallucinations' to 'confabulations'

A hallucination is a false subjective sensory experience. ChatGPT doesn't have experiences!

It's just making up plausible-sounding bs, covering knowledge gaps. That's confabulation
December 11, 2024 at 2:47 PM
Reposted by Amr Farahat
After a great conference in Boston, CCN is going to take place in Amsterdam in 2025! To help the exchange of ideas between #neuroscience, cognitive science, and #AI, CCN will for the first time have full length paper submissions (alongside the established 2 pagers)! Info below👇
#NeuroAI #CompNeuro
November 12, 2024 at 9:27 AM
Reposted by Amr Farahat
Reminder:
How to share arXiv papers
December 1, 2024 at 11:20 AM