This paper aims at investigating the Mandarin tone perception of native Kam speakers in Rongjiang area through the categorical perception experiment,and comparing with the results of the native Mandarin speakers.The r...This paper aims at investigating the Mandarin tone perception of native Kam speakers in Rongjiang area through the categorical perception experiment,and comparing with the results of the native Mandarin speakers.The results show that the native Kam speakers are able to differentiate phonemic categories among the four Mandarin tones in pairs at the linguistic level.At the behavioral level,the tone perception of T1-T2,T1-T3(T3 as baseline),T1-T4,T2-T4 and T3-T4(T3 as baseline)continua is shown to be categorical,but the degree of categorization is significantly lower than that of the Mandarin speakers.In T1-T3(T1 as baseline),T2-T3 and T3-T4(T4 as baseline)continua,the kam speakers fail to establish categorical perception,exhibiting continuous perception instead.The results indicate that complex tone system of the Kam language does not facilitate the categorical perception of Mandarin tones by Kam speakers.展开更多
Objective:Electro-acoustic stimulation (EAS) is an effective method to enhance cochlear-implant performance in individuals who have residual low-frequency acoustic hearing.To help the majority of cochlear implant user...Objective:Electro-acoustic stimulation (EAS) is an effective method to enhance cochlear-implant performance in individuals who have residual low-frequency acoustic hearing.To help the majority of cochlear implant users who do not have any functional residual acoustic hearing,electro-tactile stimulation (ETS) may be used because tactile sensation has a frequency range and perceptual capabilities similar to that produced by acoustic stimulation in the EAS users.Methods:Following up the first ETS study showing enhanced English sentence recognition in noise,1 the present study evaluated the effect of ETS on Mandarin tone recognition in noise in two groups of adult Mandarin-speaking individuals.The first group included 11 normalhearing individuals who listened to a 4-channel,noise-vocoded,cochlear-implant simulation.The second group included 1 unilateral cochlear-implant user and 2 bilateral users with each of their devices being tested independently.Both groups participated in a 4-alternative,forced-choice task,in which they had to identify a tone that was presented in noise at a 0-dB signal-to-noise ratio via electric stimulation (actual or simulated cochlear implants),tactile stimulation or the combined ETS.Results:While electric or tactile stimulation alone produced similar tone recognition (～40％ correct),the ETS enhanced the cochlear-implant tone recognition by 17-18 percentage points.The size of the present ETS enhancement effect was similar to that of the previously reported EAS effect on Mandarin tone recognition.Psychophysical analysis on tactile sensation showed an important role of frequency discrimination in the ETS enhancement.Conclusion:Tactile stimulation can potentially enhance Mandarin tone recognition in cochlear-implant users who do not have usable residual acoustic hearing.To optimize this potential,high fundamental frequencies need to be transposed to a 100-200 Hz range.展开更多
目的获得噪声下声调识别测试（t o n e identification in noise test,TINT）材料的听力正常人识别成绩-强度（performance-intensity,PI）函数。方法利用已确立的TINT测试材料对16名年龄在21~28岁、以普通话作为日常交流语言的听力正...目的获得噪声下声调识别测试（t o n e identification in noise test,TINT）材料的听力正常人识别成绩-强度（performance-intensity,PI）函数。方法利用已确立的TINT测试材料对16名年龄在21~28岁、以普通话作为日常交流语言的听力正常人进行声调识别测试,使用SPSS17.0统计软件对结果进行分析。结果听力正常成人PI斜率分别为8.6%/d B（男声）、7.3%/d B（女声）（P=0.11）;听力正常成人PI函数信噪比50阈值分别为男声（-12.9±0.8）d B、女声（-13.6±1）d B（t=2.7,P=0.016）;声调类型和播音者性别对PI曲线阈值的影响即存在交互作用（F=11.7,P〈0.001）、亦存在独立作用（声调类型：F=83.7,P〈0.001;播音员性别：F=31.0,P〈0.05）,其中听力正常人一声和四声识别阈值明显低于二声和三声识别阈值。结论本研究初步建立基于TINT测试材料的听力正常人噪声下声调识别PI函数,以期为临床工作和科学研究提供一个可选择的测量工具。展开更多
基金supported by the National Social Science Foundation of China(22&ZD213)
文摘This paper aims at investigating the Mandarin tone perception of native Kam speakers in Rongjiang area through the categorical perception experiment,and comparing with the results of the native Mandarin speakers.The results show that the native Kam speakers are able to differentiate phonemic categories among the four Mandarin tones in pairs at the linguistic level.At the behavioral level,the tone perception of T1-T2,T1-T3(T3 as baseline),T1-T4,T2-T4 and T3-T4(T3 as baseline)continua is shown to be categorical,but the degree of categorization is significantly lower than that of the Mandarin speakers.In T1-T3(T1 as baseline),T2-T3 and T3-T4(T4 as baseline)continua,the kam speakers fail to establish categorical perception,exhibiting continuous perception instead.The results indicate that complex tone system of the Kam language does not facilitate the categorical perception of Mandarin tones by Kam speakers.
文摘Objective:Electro-acoustic stimulation (EAS) is an effective method to enhance cochlear-implant performance in individuals who have residual low-frequency acoustic hearing.To help the majority of cochlear implant users who do not have any functional residual acoustic hearing,electro-tactile stimulation (ETS) may be used because tactile sensation has a frequency range and perceptual capabilities similar to that produced by acoustic stimulation in the EAS users.Methods:Following up the first ETS study showing enhanced English sentence recognition in noise,1 the present study evaluated the effect of ETS on Mandarin tone recognition in noise in two groups of adult Mandarin-speaking individuals.The first group included 11 normalhearing individuals who listened to a 4-channel,noise-vocoded,cochlear-implant simulation.The second group included 1 unilateral cochlear-implant user and 2 bilateral users with each of their devices being tested independently.Both groups participated in a 4-alternative,forced-choice task,in which they had to identify a tone that was presented in noise at a 0-dB signal-to-noise ratio via electric stimulation (actual or simulated cochlear implants),tactile stimulation or the combined ETS.Results:While electric or tactile stimulation alone produced similar tone recognition (～40％ correct),the ETS enhanced the cochlear-implant tone recognition by 17-18 percentage points.The size of the present ETS enhancement effect was similar to that of the previously reported EAS effect on Mandarin tone recognition.Psychophysical analysis on tactile sensation showed an important role of frequency discrimination in the ETS enhancement.Conclusion:Tactile stimulation can potentially enhance Mandarin tone recognition in cochlear-implant users who do not have usable residual acoustic hearing.To optimize this potential,high fundamental frequencies need to be transposed to a 100-200 Hz range.
文摘目的获得噪声下声调识别测试（t o n e identification in noise test,TINT）材料的听力正常人识别成绩-强度（performance-intensity,PI）函数。方法利用已确立的TINT测试材料对16名年龄在21~28岁、以普通话作为日常交流语言的听力正常人进行声调识别测试,使用SPSS17.0统计软件对结果进行分析。结果听力正常成人PI斜率分别为8.6%/d B（男声）、7.3%/d B（女声）（P=0.11）;听力正常成人PI函数信噪比50阈值分别为男声（-12.9±0.8）d B、女声（-13.6±1）d B（t=2.7,P=0.016）;声调类型和播音者性别对PI曲线阈值的影响即存在交互作用（F=11.7,P〈0.001）、亦存在独立作用（声调类型：F=83.7,P〈0.001;播音员性别：F=31.0,P〈0.05）,其中听力正常人一声和四声识别阈值明显低于二声和三声识别阈值。结论本研究初步建立基于TINT测试材料的听力正常人噪声下声调识别PI函数,以期为临床工作和科学研究提供一个可选择的测量工具。
