Slutsky D A, Recanzone G H
Center for Neuroscience, University of California at Davis, 95616, USA.
Neuroreport. 2001 Jan 22;12(1):7-10. doi: 10.1097/00001756-200101220-00009.
The perception of the spatial location of an auditory stimulus can be captured by a spatially disparate visual stimulus, a phenomenon known as the ventriloquism effect. This study investigated the temporal and spatial dependency of this illusion. In the temporal domain, only disparities of 50-100 ms were perceived as simultaneous, and disparities where the visual stimulus occurred before the auditory stimulus were more effective in creating the illusion. In the spatial domain, the illusion was elicited most strongly at spatial disparities below spatial discrimination thresholds. There was also a significant interaction between temporal and spatial disparities. These results indicate that both temporal and spatial parameters are critical in the perception of real world objects in extrapersonal space.
听觉刺激的空间位置感知可被空间上不同的视觉刺激所捕获，这一现象被称为腹语效应。本研究调查了这种错觉的时间和空间依赖性。在时间领域，只有50 - 100毫秒的视差被感知为同时发生，且视觉刺激在听觉刺激之前出现的视差在产生错觉方面更有效。在空间领域，在低于空间辨别阈值的空间视差处，错觉引发最为强烈。时间和空间视差之间也存在显著的相互作用。这些结果表明，时间和空间参数在对体外空间中真实世界物体的感知中都至关重要。
