Infants' name recognition in on- and off-channel noise.
Infants' name recognition in on- and off-channel noise.
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DOI：
10.1121/1.4798269
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发表时间：
2013-04
期刊：
影响因子：
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通讯作者：
R. Newman;G. Morini;M. Chatterjee
中科院分区：
文献类型：
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作者：
R. Newman;G. Morini;M. Chatterjee
Polka、Rvachew和Molnar之前的工作[Infancy 13（5），421-439（2008）]报告称，婴儿不善于将注意力集中在特定频率范围上，因此会被目标频率范围之外的掩蔽声分散注意力。目前的研究进一步探讨了这种影响无关的干扰，并发现，8个月大的婴儿是显着较少的频率范围外的掩蔽（关闭通道掩蔽）比通道掩蔽。因此，虽然婴儿可能会表现出难以忽视无关的干扰，他们能够做到这一点，至少在一定程度上，这表明一些能力，从频谱远程掩蔽语音感知，尽管表现出更大的信息掩蔽在这个年龄段的存在。
Previous work by Polka, Rvachew, and Molnar [Infancy 13(5), 421-439 (2008)] has reported that infants are poor at focusing their attention on a particular frequency range, and, as a result, are distracted by maskers that are outside of the target frequency range. The current study explores this effect of irrelevant distractors further and finds that 8-month-old infants are significantly less affected by maskers outside the frequency range (off-channel maskers) than by on-channel maskers. Thus while infants may display difficulty ignoring irrelevant distractors, they are able to do so to at least some degree, suggesting some ability to perceive speech from spectrally remote maskers, despite the demonstrated presence of greater informational masking at this age.