Sarthak Chandra
@sarthakc.bsky.social
Interested in neuroscience, development and dynamical systems | Faculty member @ ICTS | Previously: @MIT, @UMD, @IITK
Pinned
Sarthak Chandra
@sarthakc.bsky.social
· Feb 19
Global modules robustly emerge from local interactions and smooth gradients - Nature
The principle of peak selection is described, by which local interactions and smooth gradients drive self-organization of discrete global modules.
www.nature.com
1/ Our paper appeared in @Nature today! www.nature.com/articles/s41... w/ Fiete Lab and @khonamikail.bsky.social .
Explains emergence of multiple grid cell modules, w/ excellent match to data! Novel mechanism for applying across vast systems from development to ecosystems. 🧵👇
Explains emergence of multiple grid cell modules, w/ excellent match to data! Novel mechanism for applying across vast systems from development to ecosystems. 🧵👇
Reposted by Sarthak Chandra
How do brain areas control each other? 🧠🎛️
✨In our NeurIPS 2025 Spotlight paper, we introduce a data-driven framework to answer this question using deep learning, nonlinear control, and differential geometry.🧵⬇️
✨In our NeurIPS 2025 Spotlight paper, we introduce a data-driven framework to answer this question using deep learning, nonlinear control, and differential geometry.🧵⬇️
November 26, 2025 at 7:32 PM
How do brain areas control each other? 🧠🎛️
✨In our NeurIPS 2025 Spotlight paper, we introduce a data-driven framework to answer this question using deep learning, nonlinear control, and differential geometry.🧵⬇️
✨In our NeurIPS 2025 Spotlight paper, we introduce a data-driven framework to answer this question using deep learning, nonlinear control, and differential geometry.🧵⬇️
Reposted by Sarthak Chandra
Our next paper on comparing dynamical systems (with special interest to artificial and biological neural networks) is out!! Joint work with @annhuang42.bsky.social , as well as @satpreetsingh.bsky.social , @leokoz8.bsky.social , Ila Fiete, and @kanakarajanphd.bsky.social : arxiv.org/pdf/2510.25943
November 10, 2025 at 4:16 PM
Our next paper on comparing dynamical systems (with special interest to artificial and biological neural networks) is out!! Joint work with @annhuang42.bsky.social , as well as @satpreetsingh.bsky.social , @leokoz8.bsky.social , Ila Fiete, and @kanakarajanphd.bsky.social : arxiv.org/pdf/2510.25943
Reposted by Sarthak Chandra
Two cool papers out in Neuron today on memory.
1. Animals can be trained to activate specific remote memories at will:
www.cell.com/neuron/fullt...
2. Interactions between cortex and amygdala during reactivation in NREM sleep help enhance perceptual memories:
www.cell.com/neuron/fullt...
🧠📈 🧪
1. Animals can be trained to activate specific remote memories at will:
www.cell.com/neuron/fullt...
2. Interactions between cortex and amygdala during reactivation in NREM sleep help enhance perceptual memories:
www.cell.com/neuron/fullt...
🧠📈 🧪
Closed-loop modulation of remote hippocampal representations with neurofeedback
Animal models of memory retrieval trigger retrieval with cues and measure retrieval
using behavior. Coulter et al. developed a neurofeedback paradigm that rewards hippocampal
activity patterns associa...
www.cell.com
March 20, 2025 at 3:12 PM
Two cool papers out in Neuron today on memory.
1. Animals can be trained to activate specific remote memories at will:
www.cell.com/neuron/fullt...
2. Interactions between cortex and amygdala during reactivation in NREM sleep help enhance perceptual memories:
www.cell.com/neuron/fullt...
🧠📈 🧪
1. Animals can be trained to activate specific remote memories at will:
www.cell.com/neuron/fullt...
2. Interactions between cortex and amygdala during reactivation in NREM sleep help enhance perceptual memories:
www.cell.com/neuron/fullt...
🧠📈 🧪
1/ Our paper appeared in @Nature today! www.nature.com/articles/s41... w/ Fiete Lab and @khonamikail.bsky.social .
Explains emergence of multiple grid cell modules, w/ excellent match to data! Novel mechanism for applying across vast systems from development to ecosystems. 🧵👇
Explains emergence of multiple grid cell modules, w/ excellent match to data! Novel mechanism for applying across vast systems from development to ecosystems. 🧵👇
Global modules robustly emerge from local interactions and smooth gradients - Nature
The principle of peak selection is described, by which local interactions and smooth gradients drive self-organization of discrete global modules.
www.nature.com
February 19, 2025 at 11:20 PM
1/ Our paper appeared in @Nature today! www.nature.com/articles/s41... w/ Fiete Lab and @khonamikail.bsky.social .
Explains emergence of multiple grid cell modules, w/ excellent match to data! Novel mechanism for applying across vast systems from development to ecosystems. 🧵👇
Explains emergence of multiple grid cell modules, w/ excellent match to data! Novel mechanism for applying across vast systems from development to ecosystems. 🧵👇
1/ Super-excited to share our new work “Episodic and associative memory from spatial scaffolds in the hippocampus”, that just appeared in Nature! www.nature.com/articles/s41... Key insights and ideas 👇#tweeprint
Episodic and associative memory from spatial scaffolds in the hippocampus - Nature
A neocortical–entorhinal–hippocampal network model based on grid cell states recapitulates experimental results and reconciles the spatial, associative and episodic memory roles of the hippocampus.
www.nature.com
January 17, 2025 at 12:08 AM
1/ Super-excited to share our new work “Episodic and associative memory from spatial scaffolds in the hippocampus”, that just appeared in Nature! www.nature.com/articles/s41... Key insights and ideas 👇#tweeprint