Chris Baldassano
Associate Professor in Psychology at Columbia, PI of dpmlab.org
- Nice article from Columbia News on our new paper about neural representations of places and remembered items - including a video of the creative VR environment made by @xrmasiso.bsky.social ! news.columbia.edu/news/places-...
- Our new paper out in NHB! We started this back in @ptoncompmemlab.bsky.social's lab when I was a postdoc and Rolando was a grad student, showing that stable fMRI representations of places (learned in Rolando's custom-made VR world) provide the best anchors for later item learning
- Columbia Psych is hiring *two* junior faculty in Cognitive Science/Neuroscience this year! If you work on cognition (broadly defined), submit your application materials as soon as possible (review starts Nov 1). If you have questions you can reach out to me by email! apply.interfolio.com/175428
- Reposted by Chris BaldassanoI'm recruiting PhD students to join my new lab in Fall 2026! The Shared Minds Lab at @usc.edu will combine deep learning and ecological human neuroscience to better understand how we communicate our thoughts from one brain to another.
- Years ago my lab tried to brainstorm ways to separately manipulate low-level (texture/pattern) and high-level (scene/object) image properties, for studying visual representations in the brain. Thanks to imaginative work by PhD student Zall Hirschstein, we now have a stimulus set that does just that!
- What happens when we learn a new shortcut between places we thought were unconnected? Hannah found that the hippocampus rapidly adjusts its representations of environments to join them into a connected map - excited to share this final paper from her PhD work with me and @mariamaly.bsky.social !
- How do we update our predictions when our environment changes? The hippocampus rapidly integrates previously distinct sequences to support updated predictions. Proud of this work with Hannah Tarder-Stoll & @chrisbaldassano.bsky.social! www.biorxiv.org/content/10.1...
- Does watching a movie over and over make events slower or faster in the brain? With Narjes Al-Zahli and @mariamaly.bsky.social we find that different regions actually change in different directions, e.g. visual regions show finer-scale event structure and STS shows coarser-scale structure!
- How do the brain’s event representations change as we gain familiarity with an experience? Brain regions’ representations can become coarser or finer as event familiarity increases. Fine-tuning predicts memory recall. Excited to share this work with Narjes Al-Zahli & @chrisbaldassano.bsky.social!
- Out now: a unique multi-lab collaboration led by @matthiasnau.bsky.social showing that recalling a movie reactivates both neural and gaze patterns for sequences of scenes!
- Excited to share our new paper w/ @cibaker.bsky.social in @natcomms.nature.com linking active vision & memory! We provide evidence that gaze reinstatement & neural reactivation are deeply related phenomena that jointly reflect the experiences constructed during recall. doi.org/10.1038/s414... 🧵1/9
- Check out the first paper from Halle’s lab: using a false-memory paradigm to challenge classical ideas about how memories are stored and change with age
- I'm not a big poster, but had to share how proud I am of my postdoc, Lauri Gurguryan, for submitting the FIRST paper from my lab 🎉 Here, we ask a classic ? Do short- and long-term memory rely on separate or shared underlying stores Checkout the preprint: bit.ly/3Hyyl83 #neuroskyence #PsychSciSky
- Reposted by Chris BaldassanoI'm not a big poster, but had to share how proud I am of my postdoc, Lauri Gurguryan, for submitting the FIRST paper from my lab 🎉 Here, we ask a classic ? Do short- and long-term memory rely on separate or shared underlying stores Checkout the preprint: bit.ly/3Hyyl83 #neuroskyence #PsychSciSky
- How does the soundtrack of a movie change your memory of the story? New work led by @jayneuro.bsky.social finds that repeated musical motifs can reactivate neural patterns from earlier scenes, and reactivation is related to better subsequent memory!
- Music is an incredibly powerful retrieval cue. What is the neural basis of music-evoked memory reactivation? And how does this reactivation relate to later memory for the retrieved events? In our new study, we used Eternal Sunshine of the Spotless Mind to find out. www.biorxiv.org/content/10.1...
- Groundbreaking work by @martamasilva.bsky.social using intracranial recordings to study event boundaries and event memory, revealing neural mechanisms that we haven't been able to measure with fMRI!
- 🧠 Paper out! We investigated how hippocampal and cortical ripples support memory during movie watching. We found that: 🎬 Hippocampal ripples mark event boundaries 🧩 Cortical ripples predict later recall Ripples may help transform real-life experiences into lasting memories! rdcu.be/eui9l
- My lab's research was featured on the public radio program The Academic Minute, who helped me put together a short summary of our recent work on shifting event boundaries in the brain! academicminute.org/christopher-...
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- Reposted by Chris BaldassanoI’m thrilled to announce that I will start as a presidential assistant professor in Neuroscience at the City U of Hong Kong in Jan 2026! I have RA, PhD, and postdoc positions available! Come work with me on neural network models + experiments on human memory! RT appreciated! (1/5)
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- New preprint 🎉: How do episodic memory, emotions, and schemas for caregiver experiences come together in kids’ brains and verbal recall? Check out our new results showing how past and present childhood experiences shape perception and memory for movies: www.biorxiv.org/content/10.1...
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- Reposted by Chris BaldassanoMy favorite conference is the Memory Disorders Research Society meeting. It's a delightful community: top-notch research & wonderful people who have been so supportive in my career. Want to join? Nominations for membership (including self-nominations) are open until April 9! Form at the top👇🏼
- For anyone at #CNS2025 - check out @xrmasiso.bsky.social's talk tomorrow afternoon, showing that we can use fMRI to predict which (VR) locations will be good anchors for creating *future* memories! www.cogneurosociety.org/talk/?id=5579
- Reposted by Chris BaldassanoWhy do we not remember being a baby? One idea is that the hippocampus, which is essential for episodic memory in adults, is too immature to form individual memories in infancy. We tested this using awake infant fMRI, new in @science.org #ScienceResearch www.science.org/doi/10.1126/...
- Thank you to Ingrid Wickelgren and the team at Quanta for putting together this great piece, describing work by my lab and others on the neural representations of events
- New neuroscience research is en route to unlocking a universal human code for recording experiences as memory. What’s their secret weapon? Airport scenes in movies. www.quantamagazine.org/how-event-sc...
- After years of work designing and running this study with a multi-University team, we have our first preprint 🎉🎉 showing how a memorization technique builds neural representations through conjunctive representations! See thread and preprint link ⬇️
- Reposted by Chris BaldassanoNew paper story time (now out in PNAS)! We developed a method that caused people to learn new categories of visual objects, not by teaching them what the categories were, but by changing how their brains worked when they looked at individual objects in those categories. www.pnas.org/doi/10.1073/...
- Reposted by Chris Baldassano🔔𝐍𝐄𝐖 𝐏𝐑𝐄𝐏𝐑𝐈𝐍𝐓 𝐀𝐋𝐄𝐑𝐓🔔 Beyond excited to present our new work showcasing 𝐡𝐨𝐰 𝐰𝐞 𝐜𝐚𝐧 𝐩𝐫𝐞𝐝𝐢𝐜𝐭 𝐡𝐨𝐰 𝐰𝐞𝐥𝐥 𝐲𝐨𝐮 𝐰𝐢𝐥𝐥 𝐫𝐞𝐢𝐧𝐬𝐭𝐚𝐭𝐞 𝐚 𝐧𝐞𝐰 𝐦𝐞𝐦𝐨𝐫𝐲 𝐛𝐞𝐟𝐨𝐫𝐞 𝐭𝐡𝐚𝐭 𝐦𝐞𝐦𝐨𝐫𝐲 𝐢𝐬 𝐟𝐨𝐫𝐦𝐞𝐝! Wait what? Exciting collab w/ @ptoncompmemlab.bsky.social & @chrisbaldassano.bsky.social Link: www.biorxiv.org/content/10.1... (1/11)
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- At NeurIPS this week, led by Caroline Lee in collab w/ Haxby lab: we present the Hyper-HMM, to simultaneously align participants' spatial brain patterns (like hyperalignment) and temporal dynamics (with event segmentation), and align brain events to stimulus features! www.dpmlab.org/papers/8510_...
- New preprint led by @huangjiawen.bsky.social: we find that predictable stimuli are better remembered for two separate reasons: making correct predictions improves memory, and likely stimuli can be more easily reconstructed. We can independently manipulate these two factors! osf.io/preprints/ps...
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