Suhwan Gim

@suhwangim.bsky.social

Postdoc, SCNlab, Dept of Biobehavioral Health, Penn State. "Neural and behavioral mechanisms of interindividual variability of physical and mental health"

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

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 ...

arxiv.org

42 new #fmri tutorials to accompany our new book Elements of fMRI, with @fMRIstats. Run code in both #python and #matlab in your browser to explore. 7 sections, from conceptual foundations to machine learning and AI. torwager.github.io/elements-of-...

Elements of fMRI Analysis — Interactive Tutorials

Hands-on tutorials for the book Elements of fMRI Analysis: runnable MATLAB and Python code, thought questions, and self-quizzes for all 42 chapters.

torwager.github.io

Pain biomarkers can't prove or disprove someone's pain, but that doesn't make them futile. My comment in Nat Neurosci argues for a pluralistic, bio-psycho-social approach: biomarkers as complementary channels, not replacements for patient voice. doi.org/10.1038/s415...

Towards a holistic understanding of pain in the biomarker age - Nature Neuroscience

Pain biomarkers cannot prove or disprove another person’s pain, but they need not be rejected as futile or reductionist. When developed within a bio-psycho-social framework and guided by epistemic hum...

doi.org

Very happy that this paper from our lab is now out in @pnas.org! What happens when the *same* person experiences the *same* information with a *different* interpretation? Nearly the whole 🧠—well, at least nearly all association cortex—changes how it represents that information! tinyurl.com/p8chj2j7

PNAS

Proceedings of the National Academy of Sciences (PNAS), a peer reviewed journal of the National Academy of Sciences (NAS) - an authoritative source of high-impact, original research that broadly spans...

tinyurl.com

How does the brain🧠 make causal inferences and use memories to understand narratives🎬? We built an RNN🤖 with key-value episodic memory that learns causal relationships between events and retrieves memories like humans do! Preprint www.biorxiv.org/content/10.1... w/ @qlu.bsky.social, Tan Nguyen &👇

A neural network with episodic memory learns causal relationships between narrative events

Humans reflect on past memories to make sense of an ongoing event. Past work has shown that people retrieve causally related past events during comprehension, but the exact process by which this causa...

biorxiv.org

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...

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...

biorxiv.org

Does your favorite song actually relieve pain? We looked into the brain to find out. 🧠🎶❓ Come check out Poster #0780 (Wed/Thur) at #OHBM2025! In collaboration with McGill University — Elise Desbarats & Prof. Mathieu Roy.

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Our new @NatureHumBehav paper shows why we need a holistic pain biomarker framework. ML on blood tests, brain/bone imaging & genetics predicts clinical diagnoses but falls short on subjective pain. Adding psychosocial (mood, sleep, stress) boosts both. shorturl.at/vxxeO

Biological markers and psychosocial factors predict chronic pain conditions - Nature Human Behaviour

Fillingim et al. show that biological and psychosocial factors jointly predict conditions associated with chronic pain.

shorturl.at

😄The final version of my first Ph.D. project is published in PLOS Biology. We showed the spatiotemporal profile of how the brain mediates cue-stimulus integration in pain, interpreting the findings in terms of cortical hierarchy from association to sensorimotor systems. plos.io/4fsaanu

Spatiotemporal integration of contextual and sensory information within the cortical hierarchy in human pain experience

When we experience pain, the sensory input is modulated by contextual information. This neuroimaging study shows how expectation and sensory input are integrated in the human brain during pain percept...

plos.io