Fig. 3.

Sequence-evoked responses. a. Sequence-evoked response. Shown in the main plot is the root-mean-square (RMS) of the signal over all channels, representing global field power; shading shows the standard error of the mean over subjects. Time period showing significant difference between REG and RAND conditions is indicated by a grey bar. Polarity-resolved topographies (across all channels) are shown for the onset response from 50 to 80 msec (inset; left) and the sustained response (700–3000 msec) to REG (inset; top) and RAND (inset; bottom). b: Offset response. Top: Evoked response averaged over 58 central channels showing an effect of regularity. Bottom: Topography of the response during the two time-windows covering significant clusters for the contrast (REG – RAND); channels showing an effect of deviance at any point during the cluster are highlighted in white.