Very excited to share that this paper from my time in the Kahana lab is finally out in @natureneuro.bsky.social! bsky.app/profile/natu... - ThreadSky

davidhalpern.bsky.social • 55 days ago

Very excited to share that this paper from my time in the Kahana lab is finally out in @natureneuro.bsky.social! https://bsky.app/profile/natureneuro.bsky.social/post/3lkdpfgncrk2p

Reposted from Nature Neuroscience

Even while processing current experiences, people reactivate old ones and re-encode them (shown using intracranial EEG), turning thoughts into memories.

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

Comments

omriraccah.bsky.social•55 days ago

Congratulations David! Can’t wait to read it

davidhalpern.bsky.social•53 days ago

Thanks Omri!

adelaidepaul.bsky.social•31 days ago

...and dreams into memories?

davidhalpern.bsky.social•55 days ago

In the classic view of systems consolidation, the hippocampus strengthens previously encoded memories by spontaneously reactivating cortical activity during offline periods (such as sleep or rest) when the brain isn’t under continuous memory encoding demands.

davidhalpern.bsky.social•55 days ago

In contrast, cognitive theories of memory suggest that retrieval/rehearsal processes can strengthen prior memories even while encoding ongoing perceptual experience.

davidhalpern.bsky.social•55 days ago

By analyzing intracranial EEG recordings from two large datasets (N>200 in each study), we investigated the effects of reactivating item-related neural activity while studying other items on a list.

davidhalpern.bsky.social•55 days ago

Our analyses revealed that spontaneous reinstatement of item-related neural activity during encoding intervals was a significant predictor of subsequent recall.

This suggests that consolidation-like mechanisms may occur continuously—not just during post-encoding rest.

davidhalpern.bsky.social•55 days ago

These findings align with recent suggestions (from e.g.
@wamsleylab.bsky.social,
@annaschapiro.bsky.social, @sleepandcognition.bsky.social , @tristanshuman.bsky.social,
@denisejcai.bsky.social
and others not on BlueSky) that consolidation occurs opportunistically throughout waking experience.

davidhalpern.bsky.social•55 days ago

In addition, they corroborate cognitive theories about the role of study-phase retrieval and covert rehearsal, linking behavioral memory phenomena to their neural substrates.

esolomon.bsky.social•53 days ago

Beautiful paper! Love creative ways to rethink the RAM dataset.

davidhalpern.bsky.social•53 days ago

Thanks Ethan!

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