Fig. 9.

Scatter plots of the measure of spatial synchrony Ω for two groups for resting conditions with eyes closed (asterisks) and eyes open (open circles) (a), and task conditions while listening to music (open diamonds) and to text (asterisks) (b). Ω was computed with overlapping window length of 6 sec, which overlaps over 3 sec; the abscissa and ordinate of each entry represent the value of Ω of each time window for non-musicians and musicians, respectively. Thediagonal indicates the line of equality between two groups. Note the clear separation in the degree of spatial synchronization between the two groups while listening to music: musicians have significantly lower Ω, implying higher spatial synchrony.