Suhwan Gim

The brain computes by processing information over time through interactions between connectivity and dynamics that are hard to model. Here we infer these interactions from data and find they better predict cognitive performance! www.nature.com/articles/s41... w/ @lindenmp.bsky.social

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...

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 &👇

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...

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...

Precision Functional Mapping of Imagined and Experienced Pain https://www.biorxiv.org/content/10.1101/2025.08.06.668906v1

Alert!!!!

“An Action Networks Model for Pain”

We propose a new model for chronic pain — and highlight two functionally connected cortical networks that could revolutionize how we treat it.

👉 thread below 🧵

osf.io/preprints/ps...

Big year for our lab at #OHBM2025!

Thrilled to present an exciting mix of posters, talks, and lots of brainy fun 🧠🤓

Come check us out! We’d love to connect!

@cognizelab.bsky.social
@ohbmofficial.bsky.social
#OHBM #OHBM2025 #Neuroimaging

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.

Hippocampal systems for event encoding and sequencing during ongoing narrative comprehension - Communications Biology Distinct hippocampal-cortical systems support the encoding and sequencing of narrative events during ongoing comprehension, revealing how episodic memory integrates past and present information into c...

🧠📖 New paper out! How does the brain make sense of a story?

Combining behavioral data, #fMRI, and #LLMs, our study explores how distinct hippocampal-cortical systems support the #encoding and #sequencing of #narrative events during ongoing comprehension.

www.nature.com/articles/s42...

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.

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

Dreaming of a dataset that tracks mood, sleep & activity to better understand affective instability (AI)…AND paired with advanced MRI? 🤯
Check out our new bioRxiv preprint for a 13–23 y/o community sample (n=10 and growing!) with multi-echo fMRI, EMA & actigraphy: www.biorxiv.org/content/10.1...

Coordinated representations for naturalistic memory encoding and retrieval in hippocampal neural subspaces - Nature Communications In this study, the authors show that novelty encoding aligns with memory formation in the hippocampus but not with memory retrieval, and that hippocampal components involved in each process reflect it...

Hi, I’m very pleased to share my social memory project with my PI Won Mok Shim and amazing collaborators @myoo.bsky.social

www.nature.com/articles/s41...

How does the hippocampus integrate multiple cognitive processes for memory encoding and retrieval?🧠

Here’s what we found⬇️:

This paper is magical.

Learning resources for scientists · eLife A collections of articles that provide practical resources and guidance for researchers and academics

1/ 🧵 Free resources for scientists

💡 Covering research skills, careers, #SciComm, leadership, activism and more, everything in this thread appears on our Learning Resources page, with tips for researchers and academics at any career stage. #AcademicChatter #ECRChat
https://buff.ly/4f8vIpk

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...

😄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

Finally,😃 the first project during the Ph.D. program is published in PLOS Biology. We examined the spatiotemporal brain dynamics of context and sensory information integration in pain.
Thanks to my advisor @choongwanwoo.bsky.social and co-authors Seok-Jun Hong and Elizabeth Losin. plos.io/4fsaanu

📢 Exciting news! My first first-author paper on brain decoding of spontaneous thought is now available on PNAS. Check it out! www.pnas.org/doi/10.1073/...

✅ Summary: We developed fMRI-based predictive models of spontaneous thought using personal stories as stimuli. (1/4)

Overall, our results support the notion that pain perception is a dynamic process of continuously integrating contextual information with sensory inputs. This underscores the importance of investigating the temporal dimension of pain perception. (8/8)

These suggest that integration occurs along the cortical hierarchy from transmodal to unimodal brain systems, by offering a holistic interpretation of temporal dynamics in pain processing within the framework of cortical hierarchy. (7/8)

In contrast, during the mid-to-late stages of integration, the somatomotor network regions were important in mediating the effects of stimulus intensity. (6/8)

In the results of the cue model, in the early-to-mid stages of integration, regions within the frontoparietal and dorsal attention networks, such as the lateral prefrontal, premotor, and parietal cortex regions, mediated the effects of cues. (5/8)

Using this behavioral dynamic information, we examined temporal dynamics of brain mediation for the cue and stimulus effects on the continuous pain prediction ratings through temporal mediation analysis and ICA. Then, we found four main temporal domains for each model (4/8)

To capture the rating trajectories of continuous pain prediction, we devised a semicircular rating scale and found distinct temporal profiles that revealed a gradual shift in their relative importance from cognitive to sensory aspects of pain (3/8)

Pain can be understood as a continuous integration process. To grasp its dynamic nature, we addressed the temporal dynamics of brain mechanisms involved in the continuous integration process underpinning pain experience using a new tool and analysis (2/8).

Temporal Dynamics of Brain Mediation in Predictive Cue-induced Pain Modulation bioRxiv - the preprint server for biology, operated by Cold Spring Harbor Laboratory, a research and educational institution

Hi, I’m very pleased to share the preprint of my first project with my PI @choongwanwoo.bsky.social and amazing collaborators Seok-Jun Hong and E.A.R. Losin.

Here we examined the behavioral and neural dynamics of pain as a continuous integration process (1/8)
www.biorxiv.org/content/10.1...