Fig. 3.

The grand average results of Experiment 1. The x axis represents time in sec. The y axis shows concentration change in mmol × mm. The curves indicate grand average responses for standard (oxyHb: continuous red line, deoxyHb: continuous blue line) and deviant blocks (oxyHb: dashed pink line, deoxyHb: dashed turquoise line). The rectangle along the x axis indicates time of stimulation. Asterisks indicate channels with a statistically significant advantage for the deviant over the standard blocks in oxyHb (red asterisks) and deoxyHb (blue asterisks) concentration change. The ROIs obtained through the permutation test in the left hemisphere (LH) and the right hemisphere (RH) respectively are encircled using dotted lines. (For interpretation of the references to colour in this figure legend, the reader is referred to the web version of this article.)