Siddharth Jayakumar
@siddjakes.bsky.social
๐ค 81
๐ฅ 217
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Neuroscientist. Postdoc. Drummer
reposted by
Siddharth Jayakumar
Venki Murthy
7 days ago
Evolution seems to have repeatedly converged on a similar architecture in the early olfactory system of many animals. We offer an efficient-coding framework to understand this. Out in
@pnas.org
now! Led by
@jzv.bsky.social
, driven by Juan Carlos, + help from Farhad.
www.pnas.org/doi/10.1073/...
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reposted by
Siddharth Jayakumar
Venki Murthy
2 months ago
New preprint from our group (collaboration with
@sueyeonchung.bsky.social
) showing that discriminating odor components within a complex mixture is constrained by neural sensitivity rather than background interference - likely due to sparse representations at the front end.
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https://www.biorxiv.org/cgi/content/short/2026.01.27.702074v1
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reposted by
Siddharth Jayakumar
Jacob Zavatone-Veth
7 months ago
Happy to see this collaboration with
@neurovenki.bsky.social
out - featuring great work by Juan Carlos!
add a skeleton here at some point
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reposted by
Siddharth Jayakumar
Venki Murthy
7 months ago
Excited to share new computational work, led by
@jzv.bsky.social
, driven by Juan Carlos Fernandez del Castillo + contribution from Farhad Pashakanloo. We recover 3 core motifs in the olfactory system of evolutionarily distant animals using a biophysically-grounded model + efficient coding ideas!
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Convergent motifs of early olfactory processing are recapitulated by layer-wise efficient coding
The architecture of early olfactory processing is a striking example of convergent evolution. Typically, a panel of broadly tuned receptors is selectively expressed in sensory neurons (each neuron exp...
https://www.biorxiv.org/content/10.1101/2025.09.03.673748v1
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Excited to share our latest!! Thanks to everyone involved especially
@neurovenki.bsky.social
!
add a skeleton here at some point
7 months ago
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reposted by
Siddharth Jayakumar
Luis Boero
about 1 year ago
Happy to share our latest preprint! Very thankful of this project that have allowed me to (1) learn a lot, (2) work with very talented and rigorous people, and (3) capitalize 1 and 2 for delving into how mice olfactory system deals with very brief, intermittent odor stimuli.
add a skeleton here at some point
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reposted by
Siddharth Jayakumar
Venki Murthy
about 1 year ago
Yes, many worrying things happening in science that should take priority in grabbing our attention - but we are worried precisely because scientific knowledge is worth creating. In that spirit, I am proud to highlight our latest
@biorxivpreprint.bsky.social
preprint!
#neuroscience
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Perception and neural representation of intermittent odor stimuli in mice
Odor cues in nature are sparse and highly fluctuating due to turbulent transport. To investigate how animals perceive these intermittent cues, we developed a behavioral task in which head-restrained m...
https://www.biorxiv.org/content/10.1101/2025.02.12.637969v1
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For folks attending
#Cosyne24
, do check out the workshop Anqi Zhang and I are organizing:"Comparative approaches to advance neural circuits and computation". It's on March 4th!
about 2 years ago
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reposted by
Siddharth Jayakumar
bioRxiv Neuroscience
over 2 years ago
Engineered odorant receptors illuminate structural principles of odor discrimination https://www.biorxiv.org/content/10.1101/2023.11.16.567230v1
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Engineered odorant receptors illuminate structural principles of odor discrimination https://www.biorxiv.org/content/10.1101/2023.11.16.567230v1
A central challenge in olfaction is understanding how the olfactory system detects and distinguishes
https://www.biorxiv.org/content/10.1101/2023.11.16.567230v1
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