Dual cerebral processing of elementary auditory input in children

被引：58

作者：

Karhu, J ^{[1
]}

Herrgard, E ^{[1
]}

Paakkonen, A ^{[1
]}

Luoma, L ^{[1
]}

Airaksinen, E ^{[1
]}

Partanen, J ^{[1
]}

机构：

[1] KUOPIO UNIV HOSP,DEPT PEDIAT,DIV CHILDRENS NEUROL,SF-70210 KUOPIO,FINLAND

来源：

NEUROREPORT | 1997年 / 8卷 / 06期

关键词：

auditory N100; children; development; event-related potentials; habituation;

D O I：

10.1097/00001756-199704140-00002

中图分类号：

Q189 [神经科学];

学科分类号：

071006 ;

摘要：

We compared event-related responses (ERPs) to non-attended frequent and intermittent auditory input in school-aged children and in young adults. In adults, both inputs elicited prominent auditory N100 responses at vertex. In children, intermittent stimulation evoked vertex responses with similar latency and refractoriness, whereas frequently delivered identical tones evoked responses on average at 240 ms. Sensitization of a separate neuronal population at 260-300 ms was obvious during intermittent stimulation in children. The dual behaviour, simultaneous 'habituation' of one neuronal population response and sensitization of another, may reflect the process of redirecting the attention and setting up a neuronal model. Furthermore, results suggest that a simplistic interpretation of developmental ERPs in which shortening of latencies represents maturation is insufficient.

引用

页码：1327 / 1330

页数：4

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