Figure 1.

(Upper panel) Schematic illustration of the melodic patterns used in the present study. The arrow indicates the change in melodic pattern in infrequently presented deviant patterns. (Lower panel) Event-related potentials elicited by the standard (90%; thin line) and the deviant (10%; thick line) melodic patterns recorded at the Fz electrode. In the Accurate subjects, an MMN was elicited during the second and third Ignore conditions following the first Attend condition (right column). In the Inaccurate subjects, no MMN was observed at any phase of the experiment despite intermediate Attend conditions (left column).