Mechanisms of amygdala modulation of hippocampal plasticity.

  title={Mechanisms of amygdala modulation of hippocampal plasticity.},
  author={Irit Akirav and Gal Richter-levin},
  journal={The Journal of neuroscience : the official journal of the Society for Neuroscience},
  volume={22 22},
Basolateral amygdala (BLA) activation by emotional arousal modulates memory-related processes in the hippocampus. We have shown (Akirav and Richter-Levin, 1999b) that activating the BLA before perforant path (PP) tetanization has a biphasic effect on hippocampal plasticity; priming the BLA immediately before PP tetanization results in the enhancement of dentate gyrus (DG) long-term potentiation (LTP) (an "emotional tag"), whereas stimulation in a spaced interval results in the suppression of DG… CONTINUE READING


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