The relationship between inexperienced listeners' perceptions and acoustic correlates of children's /r/ productions
The relationship between inexperienced listeners' perceptions and acoustic correlates of children's /r/ productions
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DOI：
10.3109/02699206.2012.682695
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发表时间：
2012-06
影响因子：
1.2
通讯作者：
H. Klein;Maria I. Grigos;Tara Mcallister Byun;Lisa Davidson
中科院分区：
文献类型：
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作者：
H. Klein;Maria I. Grigos;Tara Mcallister Byun;Lisa Davidson
本研究探讨了经验不足的听众的看法，儿童的自然产生的/r/的声音与参考水平的准确性，由两个专家临床医生之间的共识。参与者将/r/音评定为完全正确、失真或不正确/非旋转音。第二和第三共振峰高度的测量，探讨听觉线索和知觉判断之间的关系。没有经验的听众的协议是更大的正确的生产比扭曲或不正确/非rhotic生产。此外，经验不足的听众的分化的中间与完全不正确的/r/有较低的灵敏度和特异性相对于一个声学定义的阈值比经验丰富的听众的分类。这些发现与以前的研究结果一致，强调了识别发音错误/r/的正确性等级的困难，他们认为这种能力可能受到临床经验的影响。此外，所有的听众都注意到，在评级元音/r/比辅音/r/更一致。临床医生的培训和治疗计划的影响进行了讨论。
This study examined inexperienced listeners' perceptions of children's naturally produced /r/ sounds with reference to levels of accuracy determined by consensus between two expert clinicians. Participants rated /r/ sounds as fully correct, distorted or incorrect/non-rhotic. Second and third formant heights were measured to explore the relationship between acoustic cues and perceptual judgments. Inexperienced listeners' agreement was greater for correct productions than for distorted or incorrect/non-rhotic productions. In addition, inexperienced listeners' differentiation of intermediate versus fully incorrect /r/ had lower sensitivity and specificity relative to an acoustically defined threshold than experienced listeners' classification. These findings are consistent with results of previous studies highlighting the difficulty in identifying gradations of correctness in misarticulated /r/, and they suggest that this ability may be influenced by clinical experience. Additionally, all listeners were noted to be more consistent in rating vocalic /r/ than consonantal /r/. Implications for clinician training and treatment planning are discussed.