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. 2014 Jan 17;9(1):e86384. doi: 10.1371/journal.pone.0086384

Figure 4. Statistical analysis conducted on the Gamma, Alpha and Beta bands. Gamma band.

Figure 4

Left panel shows the results for the Condition (biological vs. physical) * Task (sequencing vs. observation) interaction. In particular, the sequencing of biological actions elicited a higher gamma modulation than the passive observation of the same stimuli (SEQ-BIO > OBS-BIO), as well as the sequencing of physical events (SEQ-BIO > SEQ-PHY). Main effects of Task and Condition are not shown. Right panel shows the effect of accuracy in the gamma modulation. No significant interaction was found between correct and wrong trials, in the biological condition, and a significant difference between biological and physical conditions in correct sequencing. Error bars indicate standard error. Horizontal bars indicate significant post-hoc interactions (*** p<0.0001). Alpha and Beta bands. The main effect of task (left) and conditions (right) are shown separately, given the lack of significant Condition*Task interaction. Note the lack of a main effect of condition, and the stronger effect of task, in the Alpha band. Error bars indicate standard error. Horizontal bars indicate significant results (** p<0.001; *** p<0.0001).