Ekberg Mattias, Andin Josefine, Signoret Carine, Stenfelt Stefan, Dahlström Örjan
Department of Behavioural Sciences and Learning, Linköping University, Linköping, Sweden.
Department of Biomedical and Clinical Sciences, Linköping University, Linköping, Sweden.
PLoS One. 2025 Jul 16;20(7):e0322867. doi: 10.1371/journal.pone.0322867. eCollection 2025.
Previous research has shown deficits in vocal emotion recognition in sub-populations of individuals with hearing loss. As emotion recognition is an essential ability that affects social interaction, and in extension, can impact well-being, understanding vocal emotion recognition difficulties is a high priority research topic. Furthermore, it has been shown that although hearing aids improves word recognition, it does not improve emotion recognition. To explore emotion recognition and the effect of amplification in individuals with hearing loss, we examined recognition of vocal emotions expressed both verbally and non-verbally in middle-aged to older individuals with and without linear amplification (similar amplification across sound levels). Twenty-one experienced hearing aid users with bilateral mild-to-moderate hearing loss, and 20 individuals with normal hearing performed a vocal emotion recognition task on sentences and non-verbal vocalizations. The hearing loss group had poorer emotion recognition for both sentences (F(1,38)=15.24, p <0.001, η2p=0.29, without linear amplification, and F(1, 38)= 5.62, p=0.023, η2p=0.13, with linear amplification) and non-verbal vocalizations(F(1,38)= 25.18, p <0.001, η2p=0.40, without linear amplification, and F(1, 38)= 10.30, p=0.003, η2p=0.21, with linear amplification). However, linear amplification significantly improved the recognition of happiness (p < 0.001), which is distinguished by frequency parameters, for sentences. For non-verbal vocalizations, recognition of fear (p = 0.004) and anger (p = 0.004), were improved by linear amplification. Patterns of confusion were similar for the two groups, which may suggest that both groups perceived the emotions similarly, but that the degree of perceptual precision was lower in the hearing loss group. In sum, hearing loss negatively impacts vocal emotion recognition, but linear amplification can enhance recognition for some emotions.
先前的研究表明,听力损失亚群体在嗓音情绪识别方面存在缺陷。由于情绪识别是一项影响社交互动的重要能力,进而会影响幸福感,因此了解嗓音情绪识别困难是一个高度优先的研究课题。此外,研究表明,尽管助听器能改善单词识别,但并不能改善情绪识别。为了探究听力损失个体的情绪识别及放大效应,我们对有或没有线性放大功能(跨声级的类似放大功能)的中老年个体在言语和非言语表达中所表达的嗓音情绪识别情况进行了研究。21名有双侧轻度至中度听力损失的经验丰富的助听器使用者以及20名听力正常的个体对句子和非言语发声进行了嗓音情绪识别任务。听力损失组在句子(无线性放大功能时,F(1,38)=15.24,p<0.001,η2p=0.29;有线性放大功能时,F(1, 38)= 5.62,p=0.023,η2p=0.13)和非言语发声(无线性放大功能时,F(1,38)= 25.18,p<0.001,η2p=0.40;有线性放大功能时,F(1, 38)= 10.30,p=0.003,η2p=0.21)方面的情绪识别能力均较差。然而,线性放大功能显著改善了句子中以频率参数为特征的幸福情绪的识别(p<0.001)。对于非言语发声,线性放大功能改善了恐惧(p = 0.004)和愤怒(p = 0.004)情绪的识别。两组的混淆模式相似,这可能表明两组对情绪的感知方式相似,但听力损失组的感知精度较低。总之,听力损失会对嗓音情绪识别产生负面影响,但线性放大功能可以增强对某些情绪的识别。
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