多感觉整合中的声音诱发闪光错觉效应

声音诱发闪光错觉效应是典型的视听整合错觉现象, 是指当视觉闪光刺激与间隔100 ms内的听觉声音刺激不等数量呈现时, 被试知觉视觉闪光的数量与听觉声音的数量相等。声音诱发闪光错觉的影响因素既包括自下而上和自上而下的被试内差异因素, 也包括视听刺激依赖程度、视听整合的发展和视听刺激知觉敏感性等被试间差异因素。该效应的产生在时程上主要体现在早期加工阶段, 在脑区上主要涉及多处皮层及皮层下相关脑区。未来研究应进一步考察注意、奖赏和视听整合方式等认知加工对声音诱发闪光错觉的影响, 同时也应该关注声音诱发闪光错觉对记忆和学习的影响以及结合计算模型和神经科学的手段进一步探讨其认知神经机制。

Sound-induced flash illusion in multisensory integration

Sound-induced Flash Illusion (SiFI) is an auditory-dominated multisensory integration phenomenon that occurs when flashes presented in conjunction with an incongruent number of auditory sounds results in the flashes being perceived as equal in number to the auditory sounds. Here we summarize several factors that could impact on SiFI: (1) Bottom-up variance factors comprising physical properties (i.e., spatial characteristics of stimuli, differences in stimulus intensity, and time interval between audiovisual stimuli), top-down variance factors comprisingcognitive processes (i.e., attention, feedback patterns, and cognitive expectations), and between-subjects variance factors, such as the dependence for audiovisual stimuli, the ability to integrate audiovisual stimuli, and perceptual sensitivity to audiovisual stimuli; (2) Cognitive processing stages and neural mechanisms of SiFI (i.e., related brain regions). Future studies should focus on the effects of cognitive processes such as attention, reward, audiovisual integration on SiFI. The effects of SiFI on memory and learning should also be explored in future research. In addition, future studies combining computational models and neuroscience should further explore the cognitive and neural mechanisms of SiFI.