Bebko James M, Weiss Jonathan A, Demark Jenny L, Gomez Pamela
Department of Psychology, York University, Toronto, Ontario, Canada.
J Child Psychol Psychiatry. 2006 Jan;47(1):88-98. doi: 10.1111/j.1469-7610.2005.01443.x.
This project examined the intermodal perception of temporal synchrony in 16 young children (ages 4 to 6 years) with autism compared to a group of children without impairments matched on adaptive age, and a group of children with other developmental disabilities matched on chronological and adaptive age.
A preferential looking paradigm was used, where participants viewed non-linguistic, simple linguistic or complex linguistic events on two screens displaying identical video tracks, but one offset from the other by 3 seconds, and with the single audio track matched to only one of the displays.
As predicted, both comparison groups demonstrated significant non-random preferential looking to violations of temporal synchrony with linguistic and non-linguistic stimuli. However, the group with autism showed an impaired, chance level of responding, except when presented with non-linguistic stimuli.
Several explanations are offered for this apparently autism-specific, language-specific pattern of responding to temporal synchrony, and potential developmental sequelae are discussed.
本项目研究了16名患有自闭症的幼儿（4至6岁）对时间同步的多模态感知，并与一组在适应性年龄上匹配的无损伤儿童，以及一组在实际年龄和适应性年龄上匹配的患有其他发育障碍的儿童进行了比较。
采用优先注视范式，参与者在两个屏幕上观看非语言、简单语言或复杂语言事件，这两个屏幕显示相同的视频轨道，但其中一个相对于另一个偏移3秒，且单声道音频轨道仅与其中一个显示屏匹配。
正如预期的那样，两个对照组在面对语言和非语言刺激时，对时间同步违反情况均表现出显著的非随机优先注视。然而，自闭症组的反应受损，处于随机水平，除非呈现非语言刺激。
针对这种明显针对自闭症且特定于语言的时间同步反应模式提供了几种解释，并讨论了潜在的发育后遗症。
