The Time Course of the Pupillary Response to Auditory Emotions in Pseudospeech, Music, and Vocalizations.

IF 3 2区 医学 Q1 AUDIOLOGY & SPEECH-LANGUAGE PATHOLOGY
Trends in Hearing Pub Date : 2025-01-01 Epub Date: 2025-08-10 DOI:10.1177/23312165251365824
Julie Kirwan, Deniz Başkent, Anita Wagner
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Abstract

Emotions can be communicated through visual and dynamic characteristics such as smiles and gestures, but also through auditory channels such as laughter, music, and human speech. Pupil dilation has become a notable marker for visual emotion processing; however the pupil's sensitivity to emotional sounds, specifically speech, remains largely underexplored. This study investigated the processing of emotional pseudospeech, which are speech-like sentences devoid of semantic content. We measured participants' pupil dilations while they listened to pseudospeech, music, and human vocalizations, and subsequently performed an emotion recognition task. Our results showed that emotional pseudospeech can trigger increases of pupil dilation compared to neutral pseudospeech, supporting the use of pupillometry as a tool for indexing prosodic emotion processing in the absence of semantics. However, pupil responses to pseudospeech were smaller and slower than the responses evoked by human vocalizations. The pupillary response was not sensitive enough to distinguish between emotion categories in pseudospeech, but pupil dilations to music and vocalizations reflected some emotion-specific pupillary curves. The valence of the stimulus had a stronger overall influence on pupil size than arousal. These results highlight the potential for pupillometry in studying auditory emotion processing and provide a foundation for contextualizing pseudospeech alongside other affective auditory stimuli.

假性言语、音乐和发声中瞳孔对听觉情绪反应的时间过程。
情感可以通过视觉和动态特征(如微笑和手势)进行交流,也可以通过听觉渠道(如笑声、音乐和人类语言)进行交流。瞳孔扩张已成为视觉情绪加工的显著标志;然而,学生对情感声音的敏感性,特别是言语,在很大程度上仍未得到充分研究。情感伪言语是一种缺乏语义内容的类言语句子,研究了情感伪言语的加工过程。我们测量了参与者在听假话、音乐和人类发声时的瞳孔扩张,并随后执行了一项情绪识别任务。我们的研究结果表明,与中性假语相比,情绪性假语可以触发瞳孔扩张的增加,这支持了在没有语义的情况下使用瞳孔测量法作为索引韵律情绪处理的工具。然而,瞳孔对假言语的反应比人类发声引起的反应更小、更慢。假性言语的瞳孔反应不够敏感,无法区分情绪类别,但对音乐和发声的瞳孔扩张反映了一些特定情绪的瞳孔曲线。刺激的效价对瞳孔大小的总体影响强于唤醒。这些结果突出了瞳孔测量在研究听觉情绪加工方面的潜力,并为假性言语与其他情感听觉刺激的语境化提供了基础。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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来源期刊
Trends in Hearing
Trends in Hearing AUDIOLOGY & SPEECH-LANGUAGE PATHOLOGYOTORH-OTORHINOLARYNGOLOGY
CiteScore
4.50
自引率
11.10%
发文量
44
审稿时长
12 weeks
期刊介绍: Trends in Hearing is an open access journal completely dedicated to publishing original research and reviews focusing on human hearing, hearing loss, hearing aids, auditory implants, and aural rehabilitation. Under its former name, Trends in Amplification, the journal established itself as a forum for concise explorations of all areas of translational hearing research by leaders in the field. Trends in Hearing has now expanded its focus to include original research articles, with the goal of becoming the premier venue for research related to human hearing and hearing loss.
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