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Paper   IPM / Cognitive Sciences / 7464
School of Cognitive Sciences
  Title:   Stimulus transmission by tonic and burst responses in a minimal model of thalamic circuit
  Author(s):  B. Babadi
  Status:   Published
  Journal: Neurocomputing
  Vol.:  58-60
  Year:  2004
  Pages:   7-12
  Supported by:  IPM
  Abstract:
Burst and tonic responses are studied in a minimal model of thalamic circuit composed of a retinal spike train, a relay neuron and a reticular neuron. The integrate-and-fire-or-burst model is used to simulate the neurons. Cross-correlograms show that burst events are more reliable than tonic firings in stimulus transmission to the cortex, and may be capable of scanning the sensory spike train for certain temporal correlations. The effect of brainstem projections on thalamic bursts during wakefulness and the possible role of bursts in attention mechanisms are discussed

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