Maturation of auditory temporal integration and inhibition assessed with event-related potentials (ERPs).
Maturation of auditory temporal integration and inhibition assessed with event-related potentials (ERPs).
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DOI：
10.1186/1471-2202-11-49
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发表时间：
2010-04-16
期刊：
影响因子：
2.4
通讯作者：
Bishop DV
中科院分区：
文献类型：
--
作者：
Fox AM;Anderson M;Reid C;Smith T;Bishop DV
我们研究了听觉时间整合和抑制的发展，通过评估电生理反应的音调对分开的刺激间间隔（ISI）为25，50，100，200，400，800毫秒，在28名7至9岁的儿童，和15名成人。在成人中，一个独特的神经反应引起的音调在25毫秒或更长的ISI，而在儿童中，这只看到在响应的音调在100毫秒以上的ISI。在成人中，晚N1振幅较大的音调对的第二个音调时，分离的ISI短至100毫秒，与在整合的时间窗口内连续刺激的感知整合一致。与此相反，儿童表现出增强的负性，只有当音对分离的ISI为200毫秒。在儿童中，P1分量的振幅衰减在ISI低于200毫秒，符合一个不应过程。这些结果表明，成人整合顺序听觉信息到较小的时间段比儿童。这些结果表明，有显着的成熟的变化，从童年到成年的感知过程中的分组传入的听觉感官信息的基础，和电生理措施提供了一个敏感的，非侵入性的方法，允许进一步检查这些变化。
We examined development of auditory temporal integration and inhibition by assessing electrophysiological responses to tone pairs separated by interstimulus intervals (ISIs) of 25, 50, 100, 200, 400, and 800 ms in 28 children aged 7 to 9 years, and 15 adults. In adults a distinct neural response was elicited to tones presented at ISIs of 25 ms or longer, whereas in children this was only seen in response to tones presented at ISIs above 100 ms. In adults, late N1 amplitude was larger for the second tone of the tone pair when separated by ISIs as short as 100 ms, consistent with the perceptual integration of successive stimuli within the temporal window of integration. In contrast, children showed enhanced negativity only when tone pairs were separated by ISIs of 200 ms. In children, the amplitude of the P1 component was attenuated at ISIs below 200 ms, consistent with a refractory process. These results indicate that adults integrate sequential auditory information into smaller temporal segments than children. These results suggest that there are marked maturational changes from childhood to adulthood in the perceptual processes underpinning the grouping of incoming auditory sensory information, and that electrophysiological measures provide a sensitive, non-invasive method allowing further examination of these changes.
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影响因子：
4.7
作者：
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通讯作者：
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影响因子：
3.7
作者：
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通讯作者：
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作者：
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作者：
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通讯作者：
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DOI：
10.1016/j.ijporl.2008.05.005
发表时间：
2008-09-01
影响因子：
1.5
作者：
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通讯作者：
Sussman, Elyse