Transition to chaos in random networks with cell-type-specific connectivity.

@article{Aljadeff2015TransitionTC,
  title={Transition to chaos in random networks with cell-type-specific connectivity.},
  author={Johnatan Aljadeff and Merav Stern and Tatyana O. Sharpee},
  journal={Physical review letters},
  year={2015},
  volume={114 8},
  pages={
          088101
        }
}
In neural circuits, statistical connectivity rules strongly depend on cell-type identity. We study dynamics of neural networks with cell-type-specific connectivity by extending the dynamic mean-field method and find that these networks exhibit a phase transition between silent and chaotic activity. By analyzing the locus of this transition, we derive a new result in random matrix theory: the spectral radius of a random connectivity matrix with block-structured variances. We apply our results to… CONTINUE READING
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