Figure 4
Results from Experiment 2. (a) Impact of audio-visual direction congruence on the strength of the dynamic visual MAE. The Rain cloud plots show the estimated distributions of the nulling coherence in each audio-visual condition. The absolute value of the nulling coherence indicates the intensity of the MAE and the polarity indicates the direction of signal dots needed to nullify the MAE. Thus, positive and non-zero numbers indicate the presence of the MAE. Individual mean nulling coherence values are presented as dots. Box plots illustrate the mean (cross hairs) and the median (bold, horizontal lines) as well as the first and third quartiles (each ends of the box) of the distribution. The nulling coherence values were significantly higher in the congruent than in the incongruent, stationary, and no-sound conditions. (b) The pattern of audio-visual direction congruence in individual data. Individual data, including the two authors (P1-MP, P2-RB), consistently showed higher coherence value to nullify the induced visual MAE in the congruent condition than the incongruent condition. (c) Differences of left eye positions during adaptation across audio-visual condition. Results comparing the standard deviations obtained from each histogram across audio-visual condition showed no statistically significant differences in eye gaze during adaptation. This implies that the effect of audio-visual direction congruence did not result from eye fixation instability during adaptation.
