Psychology Department, Wake Forest University, Winston-Salem, NC 27109, USA.
Exp Brain Res. 2011 Oct;214(3):403-14. doi: 10.1007/s00221-011-2838-1. Epub 2011 Aug 21.
In the psychophysical phenomenon visual bias, an accurately localized irrelevant signal, such as a light, impairs localization of a spatially discrepant target, such as a sound, when the two stimuli are perceived as unified. Many studies have demonstrated visual bias in azimuth, but none have tested directly or found this effect in depth. The current study was able to produce over 90% bias in azimuth and somewhat less (83%) bias in depth. A maximum likelihood estimate can predict bias by the variance in the localization of each unimodal signal in each dimension in space.
在视错觉现象中，当两个刺激被感知为统一时，一个准确定位的无关信号（如光）会损害空间上不相符的目标（如声音）的定位。许多研究已经证明了方位上的视觉偏差，但没有一项研究直接测试或发现了这种深度上的效应。本研究能够产生超过 90%的方位偏差，而深度偏差则略小（83%）。最大似然估计可以通过每个单模态信号在每个空间维度的定位方差来预测偏差。
