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JeongJun Park

@jeongjunpark.bsky.social
58 followers 67 following 4 posts

Neuroscience PhD @WashU pjjeongjun.github.io

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Reposted by JeongJun Park
Hayoung Song @hayoungsong.bsky.social · 30/09/2026
Medial PFC interacts with the hippocampus to retrieve context-congruent memories.. but HOW?? was what started this. Simulating mPFC-HIP🧠, we designed an RNN🤖 that retrieves memories similar in context, on top of self-attention. It learns to retrieve like humans faster! arxiv.org/abs/2609.37791
arxiv.org
A neural network that maintains and retrieves memories based on context
Every day, people continuously infer situational context and adjust the way they understand and remember the world. Context, signaled by the prefrontal cortex, is known to modulate working memory and ...
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Reposted by JeongJun Park
Hayoung Song @hayoungsong.bsky.social · 08/06/2026
The Naturalistic Cognitive Computational Neuroscience Lab is launching at UT Austin and is looking for founding members at all levels, including lab manager, PhD students, and postdocs! #NeuroJobs We will study human brain🧠 and memory & attention, using fMRI and modeling. thesonglab.github.io
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Reposted by JeongJun Park
Hayoung Song @hayoungsong.bsky.social · 22/05/2026
🎊New Lab Alert! I'll be starting at the 🧡University of Texas at Austin🧡 this August! More info to come. thesonglab.github.io I send my deep gratitude to my mentors, Monica @monicarosenb.bsky.social, YC @ycleong.bsky.social, ShiNung @shinung.bsky.social & Zach @zreagh.bsky.social, for everything.
thesonglab.github.io
Song Lab
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JeongJun Park @jeongjunpark.bsky.social · 15/11/2025
Interested in how the brain prepares for upcoming tasks? We trained a monkey on “6” different cognitive tasks and recorded prefrontal cortical activity. We examined the neural geometry and dynamics during task preparation. Come check out our poster on SUNDAY(Nov 16) from 1-5 PM!
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Reposted by JeongJun Park
Hayoung Song @hayoungsong.bsky.social · 12/08/2025
Preprint⭐ Our attention changes over time and differs across contexts—which is reflected in the brain🧠 Fitting a dynamical systems model to fMRI data, we find that the geometry of neural dynamics along the attractor landscape reflects such changes in attention! www.biorxiv.org/content/10.1...
biorxiv.org
Geometry of neural dynamics along the cortical attractor landscape reflects changes in attention
The brain is a complex dynamical system whose activity reflects changes in internal states, such as attention. While prior work has shown that large-scale brain activity reflects attention, the mechan...
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Reposted by JeongJun Park
Tatiana Engel @engeltatiana.bsky.social · 25/06/2025
Out today in @nature.com: we show that individual neurons have diverse tuning to a decision variable computed by the entire population, revealing a unifying geometric principle for the encoding of sensory and dynamic cognitive variables. www.nature.com/articles/s41...
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Reposted by JeongJun Park
Gaia Tavoni @gaia-tavoni.bsky.social · 16/03/2025
New ms! www.biorxiv.org/content/10.1... I developed a normative coding theory for feedback-modulated canonical networks, providing a unified view of (1) efficient & predictive coding, (2) computational & algorithmic principles, (3) unimodal & multimodal sensory processing.
biorxiv.org
Convergence of efficient and predictive coding in multimodal sensory processing
The existence of pathways connecting different sensory modalities in the brain challenges the traditional view of sensory systems as operating independently. However, the reasons and mechanisms underl...
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Reposted by JeongJun Park
Jadyn Park @jadynpark.bsky.social · 14/03/2025
Remember what your partner said during a heated argument? Or the rush of getting your first job offer? Why do these emotionally arousing moments stick? Across 3 studies, and 3 arousal measures, we found that emotional arousal enhances memory encoding by promoting functional integration in the 🧠 1/🧵
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JeongJun Park @jeongjunpark.bsky.social · 13/03/2025
It is obvious we are using causal inference to understand narratives (with aha moments). But how does the brain work for this? This is a cool paper!! Congrats @hayoungsong.bsky.social
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Reposted by JeongJun Park
Konrad Kording @kordinglab.bsky.social · 26/02/2025
If we could record all neurons we still would not know how they communicate: medium.com/@kording/628...
medium.com
Would recording all neurons reveal their interactions?
For years, I was captivated by the idea that if we could record the activity of every neuron in the brain, we’d eventually crack the code…
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JeongJun Park @jeongjunpark.bsky.social · 26/02/2025
Hi Bluesky! Happy to share my PhD work: Spatial information was consistently represented across tasks in a low-dimensional subspace of PFC activity, while task identity was encoded in an orthogonal subspace, providing a stable and independent representation of context. doi.org/10.1101/2025...
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