We present the novel use of a neuroimaging technique, magnetoenceph-alography (MEG), for examining therapy-related changes in neural activity during a speech and a non-speech motor task in children with speech sound d...We present the novel use of a neuroimaging technique, magnetoenceph-alography (MEG), for examining therapy-related changes in neural activity during a speech and a non-speech motor task in children with speech sound disorders (SSD). Nine children (mean age = 4.2 years) with SSD were scanned in the MEG before and after an eight-week course of intensive motor speech therapy. MEG tasks involved an oromotor and a syllable production task. MEG analyses identified significant post-therapy changes in brain regions related to oromotor control and speech production. Behavioral assessments showed significant improvements on measures of motor speech skills and articulation following intervention. This is the first demonstration of the ability of MEG to: 1) capture brain activations resulting from oromotor movements and simple syllable production in young children, and 2) capture brain changes related to speech therapy. As the findings from this study are promising, we discuss directions for the design of future studies to further examine specific neural dysfunctions in speech sound disorders.展开更多
It is well known that most Chinese nonEnglish majors can't understand the English materials they have heard,but they do understand them if the materials are in written form.Though there may be a lot of reasons (Su...It is well known that most Chinese nonEnglish majors can't understand the English materials they have heard,but they do understand them if the materials are in written form.Though there may be a lot of reasons (Such as phonological and psychological ones),this paper covers the influence of sound changes in connected speech upon the learners' listening comprehension.Non-English majors can improve their listening comprehension,to some degrees,by getting familiar with and being practiced in sound-changes in a flow of speech,with the help of a good attitude towards sound-changes in English speeches.展开更多
目的探讨不同噪声条件下健听人群水平声源定位能力的差异。方法选取2022年8月~2023年8月在我院检查的听力正常者78例,测试在安静、白噪声35 dB SPL、40 dB SPL和言语噪声40 dB SPL条件下,受试者应答扬声器与发声扬声器的均方根误差(root...目的探讨不同噪声条件下健听人群水平声源定位能力的差异。方法选取2022年8月~2023年8月在我院检查的听力正常者78例,测试在安静、白噪声35 dB SPL、40 dB SPL和言语噪声40 dB SPL条件下,受试者应答扬声器与发声扬声器的均方根误差(root mean square error,RMSE)和平均应答时间。结果不同噪声条件下受试者平均应答时间比较无显著差异(P>0.05);安静条件下受试者RMSE为10.21°±1.55°,明显低于白噪声35 dB SPL、40 dB SPL和言语噪声40 dB SPL条件下(P<0.05);白噪声40 dB SPL、言语噪声40 dB SPL条件下受试者RMSE分别为15.02°±2.22°和15.16°±2.06°,明显高于白噪声35 dB SPL(P<0.05);安静、白噪声35 dB SPL、白噪声40 dB SPL和言语噪声40 dB SPL条件下受试者对低频、中频和高频刺激声的平均应答时间无显著差异(P>0.05);白噪声35 dB SPL、40 dB SPL和言语噪声40 dB SPL条件下受试者对高频刺激声的RMSE均高于低频、中频刺激声(P<0.05),对中频刺激声的RMSE均高于低频刺激声(P<0.05);安静、白噪声35 dB SPL、40 dB SPL和言语噪声40 dB SPL条件下受试者对前方声源的RMSE明显低于其他方位(P<0.05);安静、白噪声35 dB SPL、40 dB SPL和言语噪声40 dB SPL条件下受试者对前方和其他方位声源的平均应答时间无显著差异(P>0.05);安静、白噪声35 dB SPL、40 dB SPL和言语噪声40 dB SPL条件下,不同性别、年龄受试者RMSE及平均应答时间无显著差异(P>0.05)。结论噪声对健听人群声源识别定位能力有明显影响,在不同噪声条件下,受试者更容易定位来自前方的声源。展开更多
A novel visualized sound description, called sound dendrogram is proposed to make manual annotation easier when building large speech corpora. It is a lattice structure built from a group of ＂seed regions＂ and throu...A novel visualized sound description, called sound dendrogram is proposed to make manual annotation easier when building large speech corpora. It is a lattice structure built from a group of ＂seed regions＂ and through an iterative procedure of mergence. A simple but reliable extraction method of ＂seed regkms＂ and advanced distance metric are adopted to construct the sound dendrogram, so that it can present speech＇s structure character ranging from coarse to fine in a visualized way. Tests show that all phonemic boundaries are contained in the lattice structure of sound dendrogram and very easy to identify. Sound dendrogram can be a powerful assistant tool during the process of speech corporals manual annotation.展开更多
文摘We present the novel use of a neuroimaging technique, magnetoenceph-alography (MEG), for examining therapy-related changes in neural activity during a speech and a non-speech motor task in children with speech sound disorders (SSD). Nine children (mean age = 4.2 years) with SSD were scanned in the MEG before and after an eight-week course of intensive motor speech therapy. MEG tasks involved an oromotor and a syllable production task. MEG analyses identified significant post-therapy changes in brain regions related to oromotor control and speech production. Behavioral assessments showed significant improvements on measures of motor speech skills and articulation following intervention. This is the first demonstration of the ability of MEG to: 1) capture brain activations resulting from oromotor movements and simple syllable production in young children, and 2) capture brain changes related to speech therapy. As the findings from this study are promising, we discuss directions for the design of future studies to further examine specific neural dysfunctions in speech sound disorders.
文摘It is well known that most Chinese nonEnglish majors can't understand the English materials they have heard,but they do understand them if the materials are in written form.Though there may be a lot of reasons (Such as phonological and psychological ones),this paper covers the influence of sound changes in connected speech upon the learners' listening comprehension.Non-English majors can improve their listening comprehension,to some degrees,by getting familiar with and being practiced in sound-changes in a flow of speech,with the help of a good attitude towards sound-changes in English speeches.
文摘目的探讨不同噪声条件下健听人群水平声源定位能力的差异。方法选取2022年8月~2023年8月在我院检查的听力正常者78例,测试在安静、白噪声35 dB SPL、40 dB SPL和言语噪声40 dB SPL条件下,受试者应答扬声器与发声扬声器的均方根误差(root mean square error,RMSE)和平均应答时间。结果不同噪声条件下受试者平均应答时间比较无显著差异(P>0.05);安静条件下受试者RMSE为10.21°±1.55°,明显低于白噪声35 dB SPL、40 dB SPL和言语噪声40 dB SPL条件下(P<0.05);白噪声40 dB SPL、言语噪声40 dB SPL条件下受试者RMSE分别为15.02°±2.22°和15.16°±2.06°,明显高于白噪声35 dB SPL(P<0.05);安静、白噪声35 dB SPL、白噪声40 dB SPL和言语噪声40 dB SPL条件下受试者对低频、中频和高频刺激声的平均应答时间无显著差异(P>0.05);白噪声35 dB SPL、40 dB SPL和言语噪声40 dB SPL条件下受试者对高频刺激声的RMSE均高于低频、中频刺激声(P<0.05),对中频刺激声的RMSE均高于低频刺激声(P<0.05);安静、白噪声35 dB SPL、40 dB SPL和言语噪声40 dB SPL条件下受试者对前方声源的RMSE明显低于其他方位(P<0.05);安静、白噪声35 dB SPL、40 dB SPL和言语噪声40 dB SPL条件下受试者对前方和其他方位声源的平均应答时间无显著差异(P>0.05);安静、白噪声35 dB SPL、40 dB SPL和言语噪声40 dB SPL条件下,不同性别、年龄受试者RMSE及平均应答时间无显著差异(P>0.05)。结论噪声对健听人群声源识别定位能力有明显影响,在不同噪声条件下,受试者更容易定位来自前方的声源。
文摘A novel visualized sound description, called sound dendrogram is proposed to make manual annotation easier when building large speech corpora. It is a lattice structure built from a group of ＂seed regions＂ and through an iterative procedure of mergence. A simple but reliable extraction method of ＂seed regkms＂ and advanced distance metric are adopted to construct the sound dendrogram, so that it can present speech＇s structure character ranging from coarse to fine in a visualized way. Tests show that all phonemic boundaries are contained in the lattice structure of sound dendrogram and very easy to identify. Sound dendrogram can be a powerful assistant tool during the process of speech corporals manual annotation.
