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首页> 外文期刊>The European Journal of Neuroscience >The developmental trajectory of vocal and event-related potential responses to frequency-altered auditory feedback
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The developmental trajectory of vocal and event-related potential responses to frequency-altered auditory feedback

机译：声音和事件相关的对频率改变的听觉反馈的潜在反应的发展轨迹

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摘要

Speech motor control develops gradually as the acoustics of speech are mapped onto the positions and movements of the articulators. In this event-related potential (ERP) study, children and adults aged 4-30 years produced vocalizations while exposed to frequency-altered feedback. Vocal pitch variability and the latency of vocal responses were found to differ as a function of age. ERP responses indexed by the P1-N1-P2 complex were also modulated as a function of age. P1 amplitudes decreased with age, whereas N1 and P2 amplitudes increased with age. In addition, a correlation between vocal variability and N1 amplitudes was found, suggesting a complex interaction between behavioural and neurological responses to frequency-altered feedback. These results suggest that the neural systems that integrate auditory feedback during vocal motor control undergo robust changes with age and physiological development. This event-related potential (ERP) study investigated children and adults' vocal and neural responses to frequency-altered feedback. Vocal pitch variability, the latency of vocal responses, and P1-N1-P2 ERP responses were found to differ as a function of age. These results suggest that the neural systems that integrate auditory feedback during vocal motor control undergo robust changes with age and physiological development.
机译：随着言语声学被映射到发音器的位置和运动上，言语运动控制逐渐发展。在这项与事件相关的潜能（ERP）研究中，年龄在4至30岁的儿童和成人在暴露于频率改变的反馈时发出了声音。发现人声音高变化和人声反应的潜伏期随年龄而变化。由P1-N1-P2复合体索引的ERP反应也随年龄而变。 P1振幅随年龄而降低，而N1和P2振幅随年龄而增加。此外，发现了声音变异性与N1振幅之间的相关性，表明行为和神经学对频率改变的反馈的反应之间存在复杂的相互作用。这些结果表明，在声音运动控制过程中整合听觉反馈的神经系统会随着年龄和生理发育而发生强烈变化。这项与事件相关的电位（ERP）研究调查了儿童和成年人对频率改变的反馈的声音和神经反应。人们发现人声音高变异性，人声反应的潜伏期和P1-N1-P2 ERP反应随年龄而变化。这些结果表明，在声音运动控制过程中整合听觉反馈的神经系统会随着年龄和生理发育而发生强烈变化。

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