Nature Communications (Sep 2019)

Pupil-linked phasic arousal evoked by violation but not emergence of regularity within rapid sound sequences

  • Sijia Zhao,
  • Maria Chait,
  • Fred Dick,
  • Peter Dayan,
  • Shigeto Furukawa,
  • Hsin-I Liao

DOI
https://doi.org/10.1038/s41467-019-12048-1
Journal volume & issue
Vol. 10, no. 1
pp. 1 – 16

Abstract

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The neurotransmitter Norepinephrine (NE) has been implicated in coding surprise during decision making. Here, the authors demonstrate that this extends to sensory processing: NE release is specific to unexpected events even on extremely rapid time scales and without explicit tracking of probability.