FIGURE 6.
Inter-hemispheric delta coherence correlates with the trial number. (A) Normalized inter-hemispheric coherence in the delta band during treadmill running and the trial number (“running #”) moderately and positively correlated (r = 0.3, p < 0.05, Spearman’s correlation), while the other bands exhibited no significant relationship (p = 0.34, p = 0.19, and p = 0.72, for theta, low gamma and high gamma, respectively, Spearman’s correlation). (B) Normalized inter-hemispheric coherence in the delta band and running speed weakly and inversely correlated (r = –0.1, p < 0.05, Pearson’s correlation), while other bands exhibited no relationship (p = 0.76, p = 0.20, and p = 0.30, for theta, low gamma and high gamma, respectively, Pearson’s correlation).