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Abstract #0398

Intracellular MEMRI signals reflect the frequency of action potentials in Aplysia neurons

Pavel Svehla1, Alexis Bedecarrats2, Caroline Jahn1, Romuald Nargeot2, and Luisa Ciobanu1

1NeuroSpin/CEA, Gif-sur-Yvette, France, 2University of Bordeaux, Bordeaux, France

We show a positive correlation between electrical activity and MEMRI signal intensity in identified neurons in Aplysia buccal ganglia and demonstrate that the MEMRI signal reflects mainly fast and high membrane depolarization processes such as action potentials, and it is not sensitive to slow and small membrane depolarization, such as post-synaptic potentials.

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