Minjae Jo
minjaejo.bsky.social
Minjae Jo
@minjaejo.bsky.social
grad kid studying memory in human spatial navigation @ SKKU & CNIR
Reposted by Minjae Jo
A map of the cortical functional network mediating naturalistic navigation https://www.biorxiv.org/content/10.64898/2025.12.16.694742v1
December 17, 2025 at 8:15 AM
Reposted by Minjae Jo
🧠 New paper alert (the 1st one from our new lab)!
Led by 1st author & VR wizard @jaquent.bsky.social

@natcomms.nature.com

How do our brains distinguish novel from familiar places as we explore our environments, e.g., a new city?

🔗 doi.org/10.1038/s414...

🧵 Thread below with key findings ⬇️
December 9, 2025 at 9:49 AM
Reposted by Minjae Jo
Another new paper from the lab: Predictive theories like the SR imply that navigators who navigate differently should have cognitive maps which differ in predictable ways. Here we show that this holds in mouse hippocampal CA1.

www.sciencedirect.com/science/arti...
Environmental representations in mouse hippocampal CA1 reflect the predictive structure of navigation
Predictive theories of cognitive mapping propose that these representations encode the predictive relationships among contents as experienced by the n…
www.sciencedirect.com
December 8, 2025 at 9:24 PM
Reposted by Minjae Jo
I wrote a thing on episodic memory and systems consolidation. I hope you all enjoy it and/or find it interesting.

A neural state space for episodic memories

www.sciencedirect.com/science/arti...

#neuroskyence #psychscisky #cognition 🧪
A neural state space for episodic memories
Episodic memories are highly dynamic and change in nonlinear ways over time. This dynamism is not captured by existing systems consolidation theories …
www.sciencedirect.com
November 3, 2025 at 12:56 PM
Reposted by Minjae Jo
New paper out in cognition with @arikahn.bsky.social, @nathanieldaw.bsky.social, Cate Hartley, and @katenuss.bsky.social !!

We show that children 👶 use predictive representations (e.g. SR) to guide their choices, providing an account of how they can make flexible choices in a changing world
Children leverage predictive representations for flexible, value-guided choice
By harnessing a mental model of how the world works, learners can make flexible choices in changing environments. However, while children and adolesce…
www.sciencedirect.com
October 15, 2025 at 10:52 AM
Reposted by Minjae Jo
Delighted to share our work on replay and successor representations! We find replay during very short task pauses in human visual cortex that is linked to learning SRs & happens when learning is implicit. Study led by @lnnrtwttkhn.bsky.social

#compneuro #neuroskyence

www.pnas.org/doi/10.1073/...
Replay in the human visual cortex during brief task pauses is linked to implicit learning of successor representations | PNAS
Humans can implicitly learn about multistep sequential relationships between events in the environment from their statistical co-occurrence. Theore...
www.pnas.org
August 22, 2025 at 4:43 PM
Reposted by Minjae Jo
Our new paper, “A neural compass in the human brain during naturalistic human navigation” is out in @sfnjournals.bsky.social! First-author @zhenganglu.bsky.social led the charge, with Josh Julian and collaborator @gkaguirre.com.

www.jneurosci.org/content/earl...
August 19, 2025 at 8:29 PM
Reposted by Minjae Jo
I've been building a model of how intrusive thoughts can warp cognitive maps (world model) in PTSD & derail goal-directed behavior. It combines successor representation & prioritized replay. I started off with a grid world, then embeddings. Today in a story recall task, reading the text was moving:
July 2, 2025 at 6:48 PM