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FIG 3 - Binaural ambiguity amplifies visual bias in sound source localization

FIG. 3. (Color online) Effects of visual stimulation on auditory localization. (A) Timing 0 and Timing þ conditions. (B) Level 0 and Level À conditions. Each panel shows the group average of the mean responses of ten listeners to stereo and single-source stimuli. The results show that the visual stimulation shifts the perceived sound source position toward the LED light stimulation (left, middle, and right). Single-speaker control responses are shown in circles and stereophonic responses are shown in lines. (C) Boxplot of the percentile distribution of visual bias among the ten listeners for each stereo condition. The pair-wise comparison was evaluated by Wilcoxon signedrank test, a ¼ 0.05. (D) Correlation between the change in SD and the change in visual bias in responses of individual listeners for the timingbased (filled circles) and level-based (open circles) stereophony.
(Color online) Effects of visual stimulation on auditory localization. (A) Timing 0 and Timing þ conditions. (B) Level 0 and Level À conditions. Each panel shows the group average of the mean responses of ten listeners to stereo and single-source stimuli. The results show that the visual stimulation shifts the perceived sound source position toward the LED light stimulation (left, middle, and right). Single-speaker control responses are shown in circles and stereophonic responses are shown in lines. (C) Boxplot of the percentile distribution of visual bias among the ten listeners for each stereo condition. The pair-wise comparison was evaluated by Wilcoxon signedrank test, a ¼ 0.05. (D) Correlation between the change in SD and the change in visual bias in responses of individual listeners for the timingbased (filled circles) and level-based (open circles) stereophony.
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