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Stephen David

@stephenvdavid

Brains, hearing, behavior, computation. Dad, science believer, cyclist, and mind wanderer.

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26.11.2023
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Latest posts by Stephen David @stephenvdavid

A. Spectro-temporal filters define three most important dimensions for each of 8 neurons in a cortical column. B. SSRFs show regions in the subspace that evoke activity for that neuron. C. 1D SSRF marginals show tuning that can be monotonic or U-shaped. D. SSRFs produce very diverse time-varying activity across a cortical column, despite most neurons sharing a very similar tuning subspace.

A. Spectro-temporal filters define three most important dimensions for each of 8 neurons in a cortical column. B. SSRFs show regions in the subspace that evoke activity for that neuron. C. 1D SSRF marginals show tuning that can be monotonic or U-shaped. D. SSRFs produce very diverse time-varying activity across a cortical column, despite most neurons sharing a very similar tuning subspace.

Figure 3. Diversity of subspace models within a single recording site.

25.02.2026 00:26 πŸ‘ 1 πŸ” 0 πŸ’¬ 2 πŸ“Œ 0
Schematic of procedure for measuring subspace from DNN model. Traces illustrate the projection of a natural sound stimulus onto each subspace dimension, subspace receptive fields (SSRFs) map from the subspace projection to neural spike rate.

Schematic of procedure for measuring subspace from DNN model. Traces illustrate the projection of a natural sound stimulus onto each subspace dimension, subspace receptive fields (SSRFs) map from the subspace projection to neural spike rate.

Oops, managed not to attach a figure in the original post. Figure 1. Mapping from CNN to subspace encoding models. rdcu.be/e5gLY

25.02.2026 00:19 πŸ‘ 2 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0
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Call it #ExplainableAI or just making sense of complexity. We establish a direct link between DNNs fit to #AuditoryCortex and more intuitive subspace models from the 2000s. Congrats @jeremewingert.bsky.social @satyaparida.bsky.social & Sam Norman-Haignere! #NeuroAI #SensoryNeuroscience rdcu.be/e5gLY

24.02.2026 21:48 πŸ‘ 14 πŸ” 5 πŸ’¬ 1 πŸ“Œ 2

Ha, sorry! It’s hard to run the site as a part time gig. I do usually reply to emails but occasionally they get lost. Mostly I’m struggling with keeping the site from crashing because it’s bombarded by web scrapers all the time. Pls resend and I can get you access!

06.12.2025 19:38 πŸ‘ 1 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0
Portland OR Hands Off Rally

Portland OR Hands Off Rally

Oh wow: Portland Oregon is NOT KIDDING
#handsoff

05.04.2025 20:14 πŸ‘ 80754 πŸ” 15471 πŸ’¬ 1015 πŸ“Œ 797
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Welcome to the Bluesky account for Stand Up for Science 2025!

Keep an eye on this space for updates, event information, and ways to get involved. We can't wait to see everyone #standupforscience2025 on March 7th, both in DC and locations nationwide!

#scienceforall #sciencenotsilence

12.02.2025 17:04 πŸ‘ 11494 πŸ” 5432 πŸ’¬ 291 πŸ“Œ 670
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Don’t be a useful idiot puppet for the regime I say this to myself regularly in the past weeks, mostly when it comes to sitting on my hands about my regular NIH-related and academic science career-related hobby horse issues as they arise. We h…

Don't be a useful idiot puppet for the regime drugmonkey.wordpress.com/2025/02/25/d...

25.02.2025 19:53 πŸ‘ 118 πŸ” 52 πŸ’¬ 6 πŸ“Œ 14
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As outcry builds over Trump cuts to NIH payments, drugmakers are MIA Drugmakers β€” major beneficiaries of NIH-backed university research β€” have been largely silence on the Trump administration's cuts to agency research payments.

This article is practically ancient (several days old), but it still resonates. In my bubble, I only hear complaints from universities and professional organizations. Does biotech value basic science research? www.statnews.com/2025/02/11/n...

17.02.2025 21:38 πŸ‘ 2 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0

Feel like I just got a big bear hug. See you at ARO!

17.02.2025 18:06 πŸ‘ 0 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0

Hi, Bluesky community! Recent events have finally propelled me away from Twitter. Happy to see so many familiar names and faces here!

17.02.2025 17:39 πŸ‘ 4 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0