Postdoc at @EmoryUniversity with @chethan ML PhD '23 from @GeorgiaTech
Atlanta, GA
Joined October 2017
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TLDR: We brought (Auto)LFADS to PyTorch, now available on GitHub and NeuroCAAS! π₯
@chethan and I are excited to announce lfads-torch, a new impl. of (Auto)LFADS, designed to be easier to understand, configure, and extend! β‘οΈ
github.com/arsedler9/lfads-tβ¦
arxiv.org/abs/2309.01230
Andrew Sedler retweeted
Modern neuroscientists routinely record the complex, goal-oriented, and time-varying activity of thousands of neurons. Can we find representations of neural activity that 1) are human-interpretable and 2) enable the generation of neural activity for unrecorded behavioral conditions? We present our recent work on Generating Neural Observations Conditioned on Codes with High Information (GNOCCHI) π₯π !!
By leveraging unsupervised, information-based diffusion models, GNOCCHI can discover interpretable latent spaces from neural data and generate high-quality neural activity for specific conditions outside of the set of available neural recordings!
Andrew Sedler retweeted
I started my company originally to build maximally agency-increasing BCI without profit motive, and that's worked decently well so far
BUT AGI timelines are shortening, so we are pivoting to work on neglected approaches to alignment
Andrew Sedler retweeted
So fortunate to lead an amazingly talented lab. These folks are ππππππππ πππ great science.
𧡠of must-see posters, which span NeuroML / AI, clinical BCI (+@BrainGateTeam), population dynamics, 2P Ca imaging, spinal pattern generation, EMGβ¦ π§ π¬π©βπ¬π¨βπ¬π #SfN23
β¬οΈ
Andrew Sedler retweeted
Is a universal brain decoder possible? Can we train a decoding system that easily transfers to new individuals/tasks?
Check out our #NeurIPS2023 paper where we show that itβs possible to transfer from a large pretrained model to achieve SOTA π§ !
Link: poyo-brain.github.io/ π§΅
Andrew Sedler retweeted
Neural Data Transformer 2 (NDT2), preprint + accepted to NeurIPS 23! A study on Transformer pretraining neuronal spiking activity across multiple sessions, subjects, and experimental tasks! With @jenpgh, Leila Wehbe, and @robert_gaunt1! 1/7
Andrew Sedler retweeted
Excited about making models of neural dynamics more interpretable. An ongoing, multi-year project w/efforts led by @arsedle and then @chris_versteeg.
Grateful for convos w/@SussilloDavid @MattGolub_Neuro @brody_lab Tim Kim, and our friend @shenoystanford
To be continued...
Ever wondered whether the dynamics learned by LFADS-like models could help us understand neural computation? @chethan,@arsedle, @JonathanDMcCart, and I developed ODIN to robustly recover latent dynamical features through the power of injectivity! π 1/ arxiv.org/abs/2309.064021/
Andrew Sedler retweeted
Ever wondered whether the dynamics learned by LFADS-like models could help us understand neural computation? @chethan,@arsedle, @JonathanDMcCart, and I developed ODIN to robustly recover latent dynamical features through the power of injectivity! π 1/ arxiv.org/abs/2309.064021/
lfads-torch also includes recent extensions of LFADS to EMG and 2-photon calcium imaging, and provides a modular interface for experimenting with new reconstruction costs, input priors, and data augmentations.
iopscience.iop.org/article/1β¦
nature.com/articles/s41593-0β¦
Andrew Sedler retweeted
A wise mentor once helped me understand that this job βis all about the people.β
I am so proud that these two amazing people are the first PhD graduates from my lab.
Congratulations, Feng Zhu and Andrew Sedler!
Andrew Sedler retweeted
Excited about this new line of work in my lab, led by @arsedle w/ @chris_versteeg, to probe the relationship between expressivity and interpretability in models of neural population dynamics.
arxiv.org/abs/2212.03771
Andrew Sedler retweeted
AutoLFADS from the Pandarinath lab models neural population activity via a deep learning-based approach with automated hyperparameter optimization.
@chethan @MoRezaK @arsedle @mjaz_jazlab @PresNCM
nature.com/articles/s41592-0β¦
Andrew Sedler retweeted
The Neural Latents Benchmark '21 competition deadline is tomorrow! We've seen some really strong submissions from @aestudio @GJEHennequin lab @MarkChurchland lab and others! ππ§
Get yours in!!! ππ₯π₯π₯
xitter.cf/chethan/status/1437429β¦
π¨Announcing the 2021 Neural Latents Benchmark!π¨
We provide standardized datasets and metrics to evaluate latent variable models (LVMs) of neural population activity. π§ π
neurallatents.github.io 1/7