Correlation between the effect of orofacial somatosensory inputs in speech perception and speech production performance.
Correlation between the effect of orofacial somatosensory inputs in speech perception and speech production performance.
复制标题
口面部体感输入对言语感知和言语产生表现的影响之间的相关性。
DOI：
10.1080/25742442.2022.2134674
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发表时间：
2023
期刊：
影响因子：
--
通讯作者：
Ito,Takayuki
中科院分区：
文献类型：
--
作者：
Ashokumar,Monica;Guichet,Clément;Schwartz,Jean-Luc;Ito,Takayuki
口面部体感输入改变了对语音的感知。这种听觉-体感整合很可能是在语言能力习得的同时发展起来的。我们研究了语音感知中的体感效应是否随语音产生的个体特征而变化。语音感知中的体感效应是通过在元音识别测试中/e/和/ø/之间类别边界的变化来评估的，这种变化是由体感刺激引起的，体感刺激提供了面部皮肤向后变形，对应于/e/的发音运动与听觉输入。通过在单独测试中记录的/e/和/ø/发音的平均第一、第二和第三共振峰之间的声学距离来量化语音产生性能。由于体感刺激，/e/和/ø/之间的类别边界明显向/ø/偏移，这与前人的研究一致。类别边界位移的幅度与/e/和/ø/产品的平均第二和边缘第三共振峰之间的声学距离显著相关，而与第一共振峰距离无关。更大的声学距离可能与语音产生中元音发音目标之间的较大反差有关。这些结果表明，语音感知中的体感效应可能与语音产生性能有关。
Orofacial somatosensory inputs modify the perception of speech sounds. Such auditory-somatosensory integration likely develops alongside speech production acquisition. We examined whether the somatosensory effect in speech perception varies depending on individual characteristics of speech production. The somatosensory effect in speech perception was assessed by changes in category boundary between /e/ and /ø/ in a vowel identification test resulting from somatosensory stimulation providing facial skin deformation in the rearward direction corresponding to articulatory movement for /e/ applied together with the auditory input. Speech production performance was quantified by the acoustic distances between the average first, second and third formants of /e/ and /ø/ utterances recorded in a separate test. The category boundary between /e/ and /ø/ was significantly shifted toward /ø/ due to the somatosensory stimulation which is consistent with previous research. The amplitude of the category boundary shift was significantly correlated with the acoustic distance between the mean second – and marginally third – formants of /e/ and /ø/ productions, with no correlation with the first formant distance. Greater acoustic distances can be related to larger contrasts between the articulatory targets of vowels in speech production. These results suggest that the somatosensory effect in speech perception can be linked to speech production performance.