Effects of intention understanding and brief imitative experience on the mirror neuron system: An EEG study using Japanese sign language
Fig 5
Mean mu- and alpha-suppression in three trial phases of the counting (blue boxplots) and meaning task (orange box plots).
Mu-suppressions were found in the pre- and post-imitation phases in both tasks (left panel). Similarly, alpha-suppressions were observed in the pre- and post- imitation phases in both tasks (right panel). It was also found that power of mu was significantly smaller than that of alpha during the imitation phase of the meaning task. There was a trend toward a significant difference between power of mu and that of alpha during the imitation phase of the counting task. The middle lines indicate the mean values of power ratio relative to the baseline, while the notch indicates the median. The whiskers extend 1.5 times the interquartile range from the top and bottom of the box.