Julia Schaefer

Episodic memory forms through action: gaze shifts sequentially sample experience as it unfolds 👀🏞️ 🧠 But actions may also help organize how the brain reactivates episodic memories! 👀🧠💭 🏞️ Check out our new preprint 👇 doi.org/10.64898/202... 🎉 @tobiasstaudigl.bsky.social & Aditya Chowdhury 👇🧵

doi.orgdoi.org

🧵5/5 This suggests that gaze shifts provide temporal anchors that help structure the sequential reactivation of memories within an episode. Gaze shifts structure what we see by sequentially sampling our environment, but they may also help structure the sequential reactivation of what we remember.

Check out our preprint to learn more! doi.org/10.64898/202...

doi.orgdoi.org

🧵3/5 During subsequent retrieval tests, recalled gaze-shift sequences served as a direct behavioral readout of memory performance: if participants forgot a specific gaze shift, they also tended to forget the associated image.

🧵4/5 This link showed up in the brain activity, too: only correctly executed gaze shifts were accompanied by significant neural reactivation of the associated image memory. Even more strikingly, this reactivation was time-locked to gaze-shift onset, beginning with the start of the movement.

doi.orgdoi.org

🧵1/5 We constantly engage with our environment through sequences of actions and these actions shape how episodic memories are formed. But how do they interact with the neural dynamics underlying memory retrieval?

@martamasilva.bsky.social

🧵2/5 We investigated whether gaze shifts (head & eye movements as major exploratory actions in humans) structure the neural reactivation of sequential memories. Participants learned multiple action sequences by pairing images with distinct gaze shifts, while we recorded EEG and motion-tracking data

Julia Schaefer reposted

Marta Silva

12 Aug

Check out our new paper! 🧠 Me, @xiongbowu.bsky.social and @fuentemilla.bsky.social review how reactivation at the end of events support memory formation and propose it serves multiple functions from preventing interference to helping preserve temporal continuity! ✨ www.cell.com/trends/cogni...

cell.comNeural reactivation supports memory formation when events endMemory routinely transforms continuous experience into discrete episodes that support flexible retrieval. We propose that these structured representations are established via rapid neural reactivation...

31 July

Finally a Dr.🎓(well, once my certificate is printed 😄) A few weeks ago, I defended my thesis, and shortly after, graduated from GSN @lmu.de! I learned so much on this journey, not only about how action structures episodic memory (preprint coming soon!) but that persistence is key😄 #PhD #Neuroscience

biorxiv.orgBrain-wide gaze-dependent activity during eyes-closed rest and sleepGaze behavior and brain activity are tightly coupled during perception and mental imagery. Whether this coupling extends to eyes-closed states remains largely unknown, primarily because measuring eye ...

31 July

I am so grateful to my supervisor @tobiasstaudigl.bsky.social my office buddies and everyone who supported me through this chapter. Excited for what's next: finding a postdoc in human brain data & cognition, curious about all the ways to stimulate the brain! Know of any opportunities? #PostdocSearch

Julia Schaefer reposted

Matthias Nau

@matthiasnau.bsky.social

16 July

Thrilled to share our new #preprint, and super proud of @zednud.bsky.social and our work on eye–brain dynamics during eyes-closed rest and sleep! Also excited to share that Zach started his PhD with me recently! 🎉 Lots of ideas and cool work ahead. Follow him on Bluesky and check out his thread! 🧵

Zach Nudelman@zednud.bsky.social

Excited to share my first #preprint with @matthiasnau.bsky.social on how gaze behavior shapes brain activity during eyes-closed rest and sleep! Gaze-dependent activity was widespread even during sleep, including in many visual cortices, and altered brain-wide functional connectivity! 🧵 1/8

Julia Schaefer reposted

Fabian Schwimmbeck

@fabian31415.bsky.social

24 July

Can we study MTL ripples non-invasively? New preprint! We show that source-resolved MEG tracks ripple-like activity during sleep that: • localizes to the MTL • follows the canonical SO–spindle hierarchy • matches an iEEG benchmark • indexes memory reactivation www.biorxiv.org/content/10.6...

biorxiv.orgNon-invasive tracking of ripple-like activity during human sleep using MEGHippocampal ripples are considered a key mechanism of sleep-dependent memory consolidation. In humans, however, their direct investigation has relied on invasive recordings from patients with epilepsy...

Julia Schaefer reposted

Luise Graichen

@graichenl.bsky.social

20 Oct 2025

✨My first first-author paper is out✨ Entorhinal grid-like codes for visual space during memory formation in @natcomms.nature.com ➡️ rdcu.be/eLRm2 Big thanks to everyone ‪@isabellacwagner.bsky.social‬, @tobiasstaudigl.bsky.social, @olejensen.bsky.social, @doellerlab.bsky.social, @clauslamm.bsky.social

rdcu.beEntorhinal grid-like codes for visual space during memory formationNature Communications - Eye movements during scene viewing are tied to grid-like codes in the entorhinal cortex. Grid signals are specific to later remembered scenes, covary with activity in...