Frontal cortex tracks surprise separately for different sensory modalities but engages a common inhibitory control mechanism
Fig 10
Stop-signal P3 split by phase of the SST experiment.
If the process underlying the stop-signal P3 was stop-signal-induced surprise, its amplitude should decrease in the second half of the experiment. Instead, the stop-signal P3 is nearly identical across the two halves of the experiment. Shaded area around the ERP curves denotes the standard error of the mean.