a strong trendp = 0.06
For the right OBF/IF area the non-parametric tests revealed significant differences in N400 dipole strength between “Music” and “Social Play” conditions [Wilcoxon signed-rank test: Z (14) = 3.29, p < 0.001] and as a strong trend between “Music” and “Movement” motivational states [Wilcoxon signed-rank test: Z (14) = 1.85, p = 0.06].