The development of P50 suppression in the auditory event-related potential
The development of P50 suppression in the auditory event-related potential
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DOI：
10.1016/j.ijpsycho.2003.08.004
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发表时间：
2004-01-01
影响因子：
3
通讯作者：
Fox, NA
中科院分区：
文献类型：
--
作者：
Marshall, PJ;Bar-Haim, Y;Fox, NA
研究了32名7 ~ 13岁被试听觉事件相关电位中P50抑制的发展，并探讨了P50抑制与社交退缩的个体差异的关系。双耳呈现听觉点击对，并测量两次点击的P50分量的振幅。在整个样本中，第二次点击时的P50振幅明显小于第一次点击时的P50振幅，尽管大约三分之一的参与者在第二次点击时表现出P50的增强。对于表现出P50抑制的儿童，P50抑制的程度随着年龄的增长而增加，并在年龄最大的参与者中达到成人水平。P50抑制不随社会退缩行为的程度而变化。(C) 2003 Elsevier B.V.版权所有
The development of P50 suppression in the auditory event-related potential was examined in 32 participants aged 7-13 years and the relation of P50 suppression to individual differences in social withdrawal was investigated. Auditory click pairs were presented binaurally and the amplitude of the P50 component was measured for the two clicks. Across the whole sample, P50 amplitude to the second click was significantly smaller than P50 amplitude to the first click, although around one third of participants showed augmentation of the P50 to the second click. For the children who showed P50 suppression, the magnitude of P50 suppression increased with age and reached adult levels in the oldest participants. P50 suppression did not vary with the extent of social withdrawal behaviors. (C) 2003 Elsevier B.V. All rights reserved.