Excited to be at #CCN2026! I will be presenting our Spotlight poster on cortical mechanisms of naturalistic audiovisual processing! If you are interested in how humans process such temporally varying information load across modalities, please come chat! 📍 Poster F13 - Session F 🗓️ Thursday, Aug 6
Subha Nawer Pushpita
@pushpita1729.bsky.social
Cognitive Computational Neuroscientist in Training Neuro + ML PhD @ CMU'29 | BS in Math and in CS @ MIT' 23 & MEng' 24
Excited to attend #VSS2026 starting tomorrow! I will also be presenting my work with Leila Wehbe on two cortical mechanisms of natural audiovisual processing on Sunday, 11:15 am, talk room 1 @Multisensory Processing session.
How do diverse context structures reshape representations in LLMs? In our new work, we explore this via representational straightening. We found LLMs are like a Swiss Army knife: they select different computational mechanisms reflected in different representational structures. 1/
With some trepidation, I'm putting this out into the world: gershmanlab.com/textbook.html It's a textbook called Computational Foundations of Cognitive Neuroscience, which I wrote for my class. My hope is that this will be a living document, continuously improved as I get feedback.
Better late than never. This is a slightly old work I did with @rplevy.bsky.social during my MEng at MIT. I presented this work at @conll-conf.bsky.social last year. The key scientific question we ask here was what is the underlying cognitive mechanism of image description comprehension?
We grieve the loss of life in Sydney, Australia, where gunmen attacked a celebration of the first night of Hanukkah, killing at least 11 people. This was a terrifying incident of hate-fueled violence that no community should face.
Thinking of all the colleagues and friends I have who are connected to Brown University. What a devastating day for Brown, and for all of us.
The last chapter of my PhD (expanded) is finally out as a preprint! “Semantic reasoning takes place largely outside the language network” 🧠🧐 www.biorxiv.org/content/10.6... What is semantic reasoning? Read on! 🧵👇
Semantic reasoning takes place largely outside the language network
The brain's language network is often implicated in the representation and manipulation of abstract semantic knowledge. However, this view is inconsistent with a large body of evidence suggesting that...
biorxiv.org
Need more fMRI data (beyond the amazing NSD)? Introducing MOSAIC! Incredible effort led expertly by Ben Lahner, with help from grad student Mayukh Deb. Work in collaboration with the amazing Aude Oliva! @neurosky.bsky.social. More below..
🤖📈 How do LLMs use their depth? Akshat Gupta led a fun project to find out! We leverage TunedLens (~linear decoding of tokens) to explore how LLMs' internal representations change from layer to layer. Preprint: arxiv.org/abs/2510.18871 1/
The statistical frameworks we introduced- DIP and PIP- go beyond audio&video, they’re general tools for quantifying how two feature-based models differ or converge in predicting a common target over time, revealing patterns of dominance and joint encoding across brains🧠, models🤖, and modalities🎬🎧.
Excited to share our work on mechanisms of naturalistic audiovisual processing in the human brain 🧠🎬!! www.biorxiv.org/content/10.1...
We uncover two complementary cortical mechanisms underlying how the brain processes naturalistic audiovisual information - one system flexibly switches what sensory modality it encodes; another one jointly encodes auditory + visual inputs. ⚡ Quick thread with the main findings 👇
Excited to share our work on mechanisms of naturalistic audiovisual processing in the human brain 🧠🎬!! www.biorxiv.org/content/10.1...
Excited to share our work on mechanisms of naturalistic audiovisual processing in the human brain 🧠🎬!! www.biorxiv.org/content/10.1...
biorxiv.org