Picou Erin M
Vanderbilt University Medical Center, Nashville, TN.
J Speech Lang Hear Res. 2016 Oct 1;59(5):1233-1246. doi: 10.1044/2016_JSLHR-H-15-0231.
The purpose of this study was to evaluate the effects of hearing loss and age on subjective ratings of emotional valence and arousal in response to nonspeech sounds.
Three groups of adults participated: 20 younger listeners with normal hearing (M = 24.8 years), 20 older listeners with normal hearing (M = 55.8 years), and 20 older listeners with mild-to-severe acquired hearing loss (M = 65.6 years). Stimuli were presented via headphones at either 35 and 65 dB SPL or 50 and 80 dB SPL on the basis of random assignment within each group. Participants rated the emotional valence and arousal for previously normed nonspeech auditory stimuli.
Linear mixed model analyses were conducted separately for ratings of valence and arousal. Results revealed that listeners with hearing loss exhibited a reduced range of emotional ratings. Furthermore, for stimuli presented at 80 dB SPL, valence ratings from listeners with hearing loss were significantly lower than ratings from listeners with normal hearing.
Acquired hearing loss, not increased age, affected emotional responses by reducing the range of subjective ratings and by reducing the reported valence of the highest intensity stimuli. These results have potentially important clinical implications for aural rehabilitation.
本研究旨在评估听力损失和年龄对非语音声音情感效价和唤醒度主观评分的影响。
三组成年人参与了研究：20名听力正常的年轻听众（平均年龄M = 24.8岁），20名听力正常的年长听众（平均年龄M = 55.8岁），以及20名患有轻至重度后天性听力损失的年长听众（平均年龄M = 65.6岁）。根据每组内的随机分配，通过耳机以35和65 dB SPL或50和80 dB SPL呈现刺激。参与者对先前标准化的非语音听觉刺激的情感效价和唤醒度进行评分。
分别对效价和唤醒度评分进行线性混合模型分析。结果显示，听力损失的听众情感评分范围缩小。此外，对于以80 dB SPL呈现的刺激，听力损失听众的效价评分显著低于听力正常听众的评分。
后天性听力损失而非年龄增长，通过缩小主观评分范围和降低最高强度刺激的报告效价来影响情感反应。这些结果对听觉康复具有潜在的重要临床意义。
