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Neural Computation

February 2008, Vol. 20, No. 2, Pages 383-414
(doi: 10.1162/neco.2007.07-06-289)
© 2008 Massachusetts Institute of Technology
Gamma Oscillations and Stimulus Selection
Article PDF (1.32 MB)
Abstract

More coherent excitatory stimuli are known to have a competitive advantage over less coherent ones. We show here that this advantage is amplified greatly when the target includes inhibitory interneurons acting via GABAA-receptor-mediated synapses and the coherent input oscillates at gamma frequency. We hypothesize that therein lies, at least in part, the functional significance of the experimentally observed link between attentional biasing of stimulus competition and gamma frequency rhythmicity.