Memory transfer via brain extracts in Aplysia

David Glanzman's experiments show trained Aplysia brain extracts, injected into naïve subjects, enable the recipient to extract meaning and modify behavior; demonstrates remapping independent of precise placement.

Source paper

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Self-Improvising Memory: A Perspective on Memories as Agential, Dynamically Reinterpreting Cognitive Glue

(2024) · Levin, Michael

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Communities (2)

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Bioelectric memory & morphogenetic identity
members_of
Gap junctions and bioelectric signals encode body-plan and memory patterns across radical biological transformation.
Memory persistence through radical embodied transformation
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Explores how learned behaviors and functional memory survive complete neural restructuring during metamorphosis, testing substrate-independence of identity and continuity.

Concepts (1)

concept

Mnemonic Improvisation
supports
Central concept: the dynamic ability to rewrite and remap information (memories) onto new media and contexts across multiple scales (behavioral, genetic, physiological).

Related by similarity (8)

cosine ≥ 0.65 · no typed edge

Entities in the same semantic neighborhood but without a typed relation to this one — candidates for new edges or unrecognized duplicates.

Memory Transfer Across Metamorphosisfinding0.750
Empirical observation that caterpillars retain learned memories through pupation despite radical brain refactoring, suggesting memory as salience rather than fidelity.
Memory transfer across tissues and individualsconcept0.748
What Mechanisms Enable Memories To Transfer Between Organismsquestion0.744
Planaria maintain memories and re-imprint them from tail fragments onto newly regenerating brains.finding0.732
Example of memory dynamics during extreme regeneration.
RNA from trained Aplysia can induce an epigenetic engram for long-term sensitization in untrained Aplysia.finding0.729
Glanzman's 2018 finding on molecular memory transfer.
Learned behavior memories persist through brain metamorphosis in insects.finding0.728
Caterpillars that learn a behavior retain it as adults despite brain being drastically remodelled, showing memory mapping across substrates.
Insect larvae retain memories through complete brain remodeling during metamorphosis to adult form.finding0.727
Shows that identity and cognitive continuity persist despite radical neural substrate change.
Memories persist through complete brain remodeling during metamorphosis by transferring and remapping onto newly-constructed neural tissue.hypothesis0.723
Proposed mechanism explaining behavioral continuity in insects undergoing radical morphogenesis.

Cross-corpus bridges (1)

same_concept_as · Nomic cosine

External markdown files that talk about the same concept as this entity.

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David Glanzmanthinkers/david-glanzman.md0.792