Thurlow W R, Rosenthal T M
J Am Audiol Soc. 1976 May-Jun;1(6):280-6.
The "ventriloquism effect" refers to the perception of speech sounds as coming from a direction other than their true direction, due to the influence of visual stimuli from an apparent speaker. In these experiments, the ventriloquism effect was observed for conditions in which the subject turned his eyes 30 degrees to watch a speaker on a TV monitor. It was found that (1) the ventriloquism effect could be obtained for (hidden) auditory sources 20-30 degrees from the position of the TV speaker; (2) a strong ventriloquism effect could be obtained for an auditory stimulus at an angel of 150 degrees right of the subject's straight ahead when the TV source (toward which the subject's gaze was directed) was at 30 degrees right of straight ahead. Lesser effects were obtained for sound sources at 130 and 170 degrees right of the subject's straight ahead.
“腹语效应”指的是由于来自明显说话者的视觉刺激的影响，语音听起来来自其真实方向之外的方向的一种感知。在这些实验中，当受试者将眼睛转动30度去观看电视监视器上的说话者时，观察到了腹语效应。研究发现：（1）对于距离电视扬声器位置20 - 30度的（隐藏）听觉源，可获得腹语效应；（2）当电视源（受试者注视的方向）在正前方右侧30度时，对于在受试者正前方右侧150度角处的听觉刺激，可获得强烈的腹语效应。对于在受试者正前方右侧130度和170度处的声源，获得的效应较小。
