Auditory and visual novelty processing in normally-developing Kenyan children.
Auditory and visual novelty processing in normally-developing Kenyan children.
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DOI：
10.1016/j.clinph.2009.11.086
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发表时间：
2010-04
期刊：
影响因子：
--
通讯作者：
de Haan M
中科院分区：
文献类型：
--
作者：
Kihara M;Hogan AM;Newton CR;Garrashi HH;Neville BR;de Haan M
本研究的目的是描述肯尼亚农村儿童对听觉和视觉新奇事物的电生理反应的规范发展。我们研究了生活在肯尼亚农村的178名4-12岁的正常发育儿童（86名男孩，平均6.7岁，SD 1.8岁，92名女孩，平均6.6岁，SD 1.5岁）由新的听觉和视觉刺激引发的事件相关电位（ERPs）。听觉P1和视觉N170的潜伏期随年龄的增长而降低，其振幅也随年龄的增长而降低。长潜伏期成分（听觉N2， P3a和视觉Nc， P3a）的变化更具模态特异性；新刺激的N2振幅随年龄增长而下降，听觉P3a潜伏期和振幅随年龄增长而增加。Nc振幅随年龄增大而减小，视觉P3a振幅有增大的趋势，但不是线性的。早潜伏期erp的时间和幅度的变化可能反映了大脑的成熟过程。听觉刺激的年龄相关变化通常比视觉刺激的年龄相关变化发生得晚，这表明视觉处理比听觉处理成熟得快。erp可用于评估非洲农村地区儿童的认知发展。
The aim of this study was to describe the normative development of the electrophysiological response to auditory and visual novelty in children living in rural Kenya. We examined event-related potentials (ERPs) elicited by novel auditory and visual stimuli in 178 normally-developing children aged 4–12 years (86 boys, mean 6.7 years, SD 1.8 years and 92 girls, mean 6.6 years, SD 1.5 years) who were living in rural Kenya. The latency of early components (auditory P1 and visual N170) decreased with age and their amplitudes also tended to decrease with age. The changes in longer-latency components (Auditory N2, P3a and visual Nc, P3a) were more modality-specific; the N2 amplitude to novel stimuli decreased with age and the auditory P3a increased in both latency and amplitude with age. The Nc amplitude decreased with age while visual P3a amplitude tended to increase, though not linearly. The changes in the timing and magnitude of early-latency ERPs likely reflect brain maturational processes. The age-related changes to auditory stimuli generally occurred later than those to visual stimuli suggesting that visual processing matures faster than auditory processing. ERPs may be used to assess children’s cognitive development in rural areas of Africa.
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影响因子：
3
作者：
Ackles, PK;Cook, KG
通讯作者：
Cook, KG
DOI：
10.1016/0926-6410(93)90023-x
发表时间：
1993-10-01
期刊：
COGNITIVE BRAIN RESEARCH
影响因子：
--
作者：
ENOKI, H;SANADA, S;OHTAHARA, S
通讯作者：
OHTAHARA, S
影响因子：
4.7
作者：
Ceponiene, R;Rinne, T;Näätänen, R
通讯作者：
Näätänen, R
影响因子：
4.4
作者：
Elwan, O;Madkour, O;El Faiuomy, N
通讯作者：
El Faiuomy, N
影响因子：
8
作者：
Burden, Matthew J.;Westerlund, Alissa J.;Jacobson, Joseph L.
通讯作者：
Jacobson, Joseph L.