Fig. 8. Least-squares onset time, offset time and magnitude values for strong and weak escape responses, based on the MANOVA calculation (Table 3). In the left panel, mean activity is plotted against time. Different longitudinal electrode positions are displayed along the vertical axis, with anterior positions in dark colors at the top and posterior ones in light colors at the bottom. Ipsilateral and contralateral electrodes at the same longitudinal position are offset slightly from each other and are shown in orange and blue, respectively. The left and right side of the boxes are onset and offset times, respectively, and the height of each box represents the average EMG amplitude. The area of the box, thus, is proportional to the magnitude of muscle activity. The lines at either end show standard errors for the onset and offset time. The right panel shows the magnitude itself for each electrode, with standard error bars. Between the two strength responses are the means for all positions along the body of onset time, offset time and magnitude.

Return to article