Gamma oscillations mediate stimulus competition and attentional selection in a cortical network model

  title={Gamma oscillations mediate stimulus competition and attentional selection in a cortical network model},
  author={Christoph B{\"o}rgers and Steven Epstein and Nancy J. Kopell},
  journal={Proceedings of the National Academy of Sciences},
  pages={18023 - 18028}
Simultaneous presentation of multiple stimuli can reduce the firing rates of neurons in extrastriate visual cortex below the rate elicited by a single preferred stimulus. We describe computational results suggesting how this remarkable effect may arise from strong excitatory drive to a substantial local population of fast-spiking inhibitory interneurons, which can lead to a loss of coherence in that population and thereby raise the effectiveness of inhibition. We propose that in attentional… 

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