Perceptual Adaptation to Noise-Vocoded Speech by Lip-Read Information: No Difference between Dyslexic and Typical Readers.

IF 1.8 4区 心理学 Q3 BIOPHYSICS
Faezeh Pourhashemi, Martijn Baart, Jean Vroomen
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引用次数: 0

Abstract

Auditory speech can be difficult to understand but seeing the articulatory movements of a speaker can drastically improve spoken-word recognition and, on the longer-term, it helps listeners to adapt to acoustically distorted speech. Given that individuals with developmental dyslexia (DD) have sometimes been reported to rely less on lip-read speech than typical readers, we examined lip-read-driven adaptation to distorted speech in a group of adults with DD ( N = 29) and a comparison group of typical readers ( N = 29). Participants were presented with acoustically distorted Dutch words (six-channel noise-vocoded speech, NVS) in audiovisual training blocks (where the speaker could be seen) interspersed with audio-only test blocks. Results showed that words were more accurately recognized if the speaker could be seen (a lip-read advantage), and that performance steadily improved across subsequent auditory-only test blocks (adaptation). There were no group differences, suggesting that perceptual adaptation to disrupted spoken words is comparable for dyslexic and typical readers. These data open up a research avenue to investigate the degree to which lip-read-driven speech adaptation generalizes across different types of auditory degradation, and across dyslexic readers with decoding versus comprehension difficulties.

通过唇读信息对噪声编码语音的感知适应:阅读障碍者与典型阅读者之间没有差异。
听觉语言可能难以理解,但看到说话者的发音动作可以大大提高口语单词的识别能力,而且从长远来看,还有助于听者适应声音失真的语音。据报道,发育性阅读障碍(DD)患者对唇读语音的依赖程度有时低于典型读者,有鉴于此,我们对一组发育性阅读障碍成人(29 人)和一组典型读者(29 人)进行了唇读驱动的失真语音适应性测试。在视听训练区块(可以看到说话者)和纯音频测试区块中,向参与者展示了声音失真的荷兰语单词(六通道噪声编码语音,NVS)。结果表明,如果能看到说话者,就能更准确地识别单词(唇读优势),而且在随后的纯听觉测试块中,成绩稳步提高(适应)。结果显示,读写障碍者和典型阅读障碍者对中断的口语单词的感知适应能力相当。这些数据为研究唇读驱动的语音适应性在不同类型的听觉退化中的普遍程度,以及在有解码和理解困难的阅读障碍读者中的普遍程度开辟了一条研究途径。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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来源期刊
Multisensory Research
Multisensory Research BIOPHYSICS-PSYCHOLOGY
CiteScore
3.50
自引率
12.50%
发文量
15
期刊介绍: Multisensory Research is an interdisciplinary archival journal covering all aspects of multisensory processing including the control of action, cognition and attention. Research using any approach to increase our understanding of multisensory perceptual, behavioural, neural and computational mechanisms is encouraged. Empirical, neurophysiological, psychophysical, brain imaging, clinical, developmental, mathematical and computational analyses are welcome. Research will also be considered covering multisensory applications such as sensory substitution, crossmodal methods for delivering sensory information or multisensory approaches to robotics and engineering. Short communications and technical notes that draw attention to new developments will be included, as will reviews and commentaries on current issues. Special issues dealing with specific topics will be announced from time to time. Multisensory Research is a continuation of Seeing and Perceiving, and of Spatial Vision.
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