Towards neuro-memory-chip: imprinting multiple memories in cultured neural networks.
We show that using local chemical stimulations it is possible to imprint persisting (days) multiple memories (collective modes of neuron firing) in the activity of cultured neural networks. Microdroplets of inhibitory antagonist are injected at a location selected based on real-time analysis of the recorded activity. The neurons at the stimulated locations turn into a focus for initiating synchronized bursting events (the collective modes) each with its own specific spatiotemporal pattern of neuron firing.
School of Physics and Astronomy, Raymond & Beverly Sackler Faculty of Exact Sciences, Tel-Aviv University, Tel-Aviv, Israel.
Itay
I
Baruchi
Eshel
E
Ben-Jacob
D000200:Action Potentials / Q000187:drug effects / Q000502:physiology*; D001683:Biological Clocks / Q000187:drug effects / Q000502:physiology*; D002478:Cells, Cultured; D000697:Central Nervous System Stimulants / Q000008:administration & dosage; D003198:Computer Simulation; D008568:Memory / Q000187:drug effects / Q000502:physiology*; D008959:Models, Neurological; D009415:Nerve Net / Q000187:drug effects / Q000502:physiology*; D009474:Neurons / Q000187:drug effects / Q000502:physiology*; D010852:Picrotoxin / Q000008:administration & dosage*
D000697:Central Nervous System Stimulants; D010852:Picrotoxin