Evoked-Potential Correlates of Stimulus Uncertainty

@article{Sutton1965EvokedPotentialCO,
  title={Evoked-Potential Correlates of Stimulus Uncertainty},
  author={Samuel Sutton and Margery Braren and Joseph Zubin and E. Roy John},
  journal={Science},
  year={1965},
  volume={150},
  pages={1187 - 1188}
}
The average evoked-potential waveforms to sound and light stimuli recorded from scalp in awake human subjects show differences as a function of the subject's degree of uncertainty with respect to the sensory modality of the stimulus to be presented. Differences are also found in the evoked potential as a function of whether or not the sensorymodality of the stimulus was anticipated correctly. The major waveform alteration is in the amplitude of a positive-going component which reaches peak… 

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TLDR
The evoked potential correlates of sensory overload in forced-paced auditory tasks are examined and it is found that the cerebral “decision” potential can reveal intermittency in the perceptual channel.

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