Department of Hearing and Speech Sciences, Vanderbilt University Medical Center, 1215 21st Ave South, Room 8310, Nashville, TN 37232, United States.
Department of Speech-Language Pathology, University of Toronto, Canada.
Hear Res. 2021 Mar 1;401:108153. doi: 10.1016/j.heares.2020.108153. Epub 2020 Dec 11.
Hearing loss can disrupt emotional responses to sound. However, the impact of stimulus modality (multisensory versus unisensory) on this disruption, and the underlying mechanisms responsible, are unclear. The purposes of this project were to evaluate the effects of stimulus modality and filtering on emotional responses to non-speech stimuli. It was hypothesized that low- and high-pass filtering would result in less extreme ratings, but only for unisensory stimuli. Twenty-four adults (22- 34 years old; 12 male) with normal hearing participated. Participants made ratings of valence and arousal in response to pleasant, neutral, and unpleasant non-speech sounds and/or pictures. Each participant completed ratings of five stimulus modalities: auditory-only, visual-only, auditory-visual, filtered auditory-only, and filtered auditory-visual. Half of the participants rated low-pass filtered stimuli (800 Hz cutoff), and half of the participants rated high-pass filtered stimuli (2000 Hz cutoff). Combining auditory and visual modalities resulted in more extreme (more pleasant and more unpleasant) ratings of valence in response to pleasant and unpleasant stimuli. In addition, low- and high-pass filtering of sounds resulted in less extreme ratings of valence (less pleasant and less unpleasant) and arousal (less exciting) in response to both auditory-only and auditory-visual stimuli. These results suggest that changes in audible spectral information are partially responsible for the noted changes in emotional responses to sound that accompany hearing loss. The findings also suggest the effects of hearing loss will generalize to multisensory stimuli if the stimuli include sound, although further work is warranted to confirm this in listeners with hearing loss.
听力损失会干扰对声音的情绪反应。然而，刺激模式（多感官与单感官）对这种干扰的影响以及负责的潜在机制尚不清楚。本项目的目的是评估刺激模式和滤波对非言语刺激的情绪反应的影响。假设低通和高通滤波会导致评分不那么极端，但仅限于单感官刺激。24 名听力正常的成年人（22-34 岁；12 名男性）参与了研究。参与者对愉快、中性和不愉快的非言语声音和/或图片做出了愉悦和兴奋的评价。每位参与者完成了五种刺激模式的评价：仅听觉、仅视觉、视听、低通滤波仅听觉和低通滤波视听。一半的参与者评价了低通滤波刺激（800Hz 截止），另一半参与者评价了高通滤波刺激（2000Hz 截止）。听觉和视觉模式的结合导致对愉快和不愉快刺激的愉悦评价更加极端（更愉快和更不愉快）。此外，声音的低通和高通滤波导致对仅听觉和视听听觉刺激的愉悦（不那么愉快）和兴奋（不那么兴奋）评价不那么极端。这些结果表明，可听频谱信息的变化部分解释了听力损失伴随的对声音的情绪反应的变化。这些发现还表明，如果刺激包括声音，听力损失的影响将推广到多感官刺激，尽管需要进一步的工作来确认听力损失患者的这一结果。
