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Memory allocation
Although mechanisms involved in encoding, storing and retrieving memory have attracted a great deal of attention, the processes that allocate individual memories to specific neurons within a network have remained illusive. Recent findings from our laboratory (to download (PDF) unraveled the first insights into the processes that modulate memory allocation in neuronetworks. They showed that neurons in the lateral amygdala compete to take part in auditory fear conditioned memory traces and that the levels of the transcription factor CREB (cAMP-response element binding protein) can affect the probability of a neuron to be recruited into a given memory representation. We are currently determining how the molecular and cellular mechanisms of memory allocation affect the storage and retrieval of information in the brain.
Key reference
Jin-Hee Han, Steven A. Kushner, Adelaide P. Yiu, Christy A. Cole, Anna Matynia, Robert A.
Brown, Rachael Neve, John F. Guzowski, Alcino J. Silva, Sheena A. Josselyn. Neuronal competition and selection during memory formation. Science (PDF).
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