Figure 1.
Description of experimental task and body sway signals elicited when viewing different facial expressions.
Data were rectified by subtracting the mean of body sway during the first second before starting the presentation of each block of facial expressions. Data above the baseline represent the amplitude of forward movements and data below the baseline correspond to the amplitude of backwards movements.
Table 1.
Mean (and standard deviation) of pleasantness and arousal ratings elicited by pain, happy and neutral faces.
Figure 2.
Amplitudes of postural body sway in the anterior-posterior axis elicited by viewing facial expressions and expressed in percentage of change with respect to baseline.
Asterisks indicate significant differences at 5% level.
Figure 3.
Amplitudes of forward and backward movements elicited by viewing facial expressions and expressed in percentage of change with respect to baseline.
Positive values refer to forward and negative values to backward movements. Asterisks indicate significant differences at 5% level.