Temporal predictability modulates putative midbrain activity: evidence from human EEG

Predictable timing has been shown to modulate the neural processing of auditory stimuli at multiple stages and time scales, e.g. reducing the amplitude of the P50 and N1 potentials in the EEG. The modulatory effects of predictable timing include an enhancement of repetition suppression (see these examples) and omission responses to tones whose identity can also be predicted. However, most of the previously reported modulations of evoked responses occur relatively late, and have primarily been attributed to cortical processing. Can similar modulatory effects of predictable timing be observed at earlier, putatively subcortical stages? 

[Link] to the original blog post for Timing Research Forum