Trainor Laurel, McFadden Melissa, Hodgson Lisa, Darragh Lisa, Barlow Jennifer, Matsos Laura, Sonnadara Ranil
Department of Psychology, McMaster University, Hamilton, Canada ON L8S 4B2.
Int J Psychophysiol. 2003 Dec;51(1):5-15. doi: 10.1016/s0167-8760(03)00148-x.
Evoked responses to stimulus deviance were compared in infants between 2 and 6 months of age. A deviant stimulus containing a short silent gap occasionally replaced a repeating standard stimulus matched in duration, intensity and approximate spectral content. At two months, the standard stimuli evoked only a positive slow wave, and its amplitude was increased in response to the deviant stimuli. By 6 months, the deviant stimuli evoked an increased negativity at approximately 200 ms, similar to the mismatch negativity (MMN) response in adults. The results are considered with respect to layer-specific cortical maturation during this period.
对2至6个月大的婴儿对刺激偏差的诱发反应进行了比较。一个包含短暂无声间隙的偏差刺激偶尔会取代一个在持续时间、强度和近似频谱内容上匹配的重复标准刺激。在两个月大时，标准刺激仅诱发一个正向慢波，并且其振幅在对偏差刺激的反应中增加。到6个月大时，偏差刺激在大约200毫秒时诱发了增强的负向波，类似于成年人的失配负波（MMN）反应。结合这一时期特定层的皮质成熟情况对结果进行了考量。
