Robinson Christopher W, Sloutsky Vladimir M
Center for Cognitive Science, Ohio State University, Columbus, OH 43210, USA.
Dev Sci. 2007 Nov;10(6):734-40. doi: 10.1111/j.1467-7687.2007.00627.x.
The ability to process simultaneously presented auditory and visual information is a necessary component underlying many cognitive tasks. While this ability is often taken for granted, there is evidence that under many conditions auditory input attenuates processing of corresponding visual input. The current study investigated infants' processing of visual input under unimodal and cross-modal conditions. Results of the three reported experiments indicate that different auditory input had different effects on infants' processing of visual information. In particular, unfamiliar auditory input slowed down visual processing, whereas more familiar auditory input did not. These results elucidate mechanisms underlying auditory overshadowing in the course of cross-modal processing and have implications on a variety of cognitive tasks that depend on cross-modal processing.
同时处理呈现的听觉和视觉信息的能力是许多认知任务的必要组成部分。虽然这种能力常常被视为理所当然，但有证据表明，在许多情况下，听觉输入会削弱对相应视觉输入的处理。当前的研究调查了婴儿在单模态和跨模态条件下对视觉输入的处理。所报告的三个实验结果表明，不同的听觉输入对婴儿处理视觉信息有不同的影响。特别是，不熟悉的听觉输入会减缓视觉处理，而更熟悉的听觉输入则不会。这些结果阐明了跨模态处理过程中听觉掩蔽的潜在机制，并对依赖跨模态处理的各种认知任务具有启示意义。
