JeongJun Park
@jeongjunpark.bsky.social
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Neuroscience PhD candidate @WashU
https://pjjeongjun.github.io/
pinned post!
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...
about 1 year ago
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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!
6 months ago
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JeongJun Park
Hayoung Song
9 months ago
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...
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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...
https://www.biorxiv.org/content/10.1101/2025.08.08.669432v1
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JeongJun Park
Tatiana Engel
10 months ago
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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JeongJun Park
Gaia Tavoni
about 1 year ago
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.
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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...
https://www.biorxiv.org/content/10.1101/2025.02.24.639817v1
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Jadyn Park
about 1 year ago
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/🧵
add a skeleton here at some point
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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
add a skeleton here at some point
about 1 year ago
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JeongJun Park
Konrad Kording
about 1 year ago
If we could record all neurons we still would not know how they communicate:
medium.com/@kording/628...
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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…
https://medium.com/@kording/6288949ba4f5
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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...
about 1 year ago
0
37
11
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