Vibrotactile Presentation of Musical Notes to the Glabrous Skin for Adults with Normal Hearing or a Hearing Impairment: Thresholds, Dynamic Range and High-Frequency Perception.
Vibrotactile Presentation of Musical Notes to the Glabrous Skin for Adults with Normal Hearing or a Hearing Impairment: Thresholds, Dynamic Range and High-Frequency Perception.
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DOI：
10.1371/journal.pone.0155807
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发表时间：
2016
期刊：
影响因子：
3.7
通讯作者：
Ginsborg J
中科院分区：
文献类型：
--
作者：
Hopkins C;Maté-Cid S;Fulford R;Seiffert G;Ginsborg J
将音乐呈现为皮肤振动有可能促进有听力障碍的音乐家与其他音乐家在团体表演中的互动。振动触觉阈值已被确定，以评估潜在的振动触觉介绍音乐的无毛皮肤的指尖，前脚和脚跟。当呈现给听力正常和严重或极重度听力损失的参与者的指尖时，代表C1和C6之间音符的正弦曲线的阈值之间没有显着差异。对于听力正常的参与者，C1和C6之间的音符阈值显示指尖的特征U形曲线，但不包括前足和脚跟。与指尖相比，前脚在C1和C3之间的阈值较低，脚跟在C1和G2之间的阈值较低;这是由于Pacinian受体在用于前脚和脚跟的较大接触器区域上的空间总和。听力正常的参与者使用指尖呈现的1 s正弦波评估高频振动的感知，发现当刺激高于阈值10 dB时，在G4和C6之间的音符开始和/或结束时更能意识到瞬时振动，而不是在阈值。平均94%的参与者报告在G4和G5之间感觉到持续振动，刺激高于阈值10 dB。基于实验结果和考虑与振动暴露有关的健康影响，音乐的振动触觉呈现的音符的合适范围被确定为从C1到G5。这比人类听觉更受限制，但人类声音的基频以及许多乐器演奏的音符都在其中。然而，动态范围可能需要压缩，以避免幅度对音高感知的负面影响。
Presentation of music as vibration to the skin has the potential to facilitate interaction between musicians with hearing impairments and other musicians during group performance. Vibrotactile thresholds have been determined to assess the potential for vibrotactile presentation of music to the glabrous skin of the fingertip, forefoot and heel. No significant differences were found between the thresholds for sinusoids representing notes between C1 and C6 when presented to the fingertip of participants with normal hearing and with a severe or profound hearing loss. For participants with normal hearing, thresholds for notes between C1 and C6 showed the characteristic U-shape curve for the fingertip, but not for the forefoot and heel. Compared to the fingertip, the forefoot had lower thresholds between C1 and C3, and the heel had lower thresholds between C1 and G2; this is attributed to spatial summation from the Pacinian receptors over the larger contactor area used for the forefoot and heel. Participants with normal hearing assessed the perception of high-frequency vibration using 1s sinusoids presented to the fingertip and were found to be more aware of transient vibration at the beginning and/or end of notes between G4 and C6 when stimuli were presented 10dB above threshold, rather than at threshold. An average of 94% of these participants reported feeling continuous vibration between G4 and G5 with stimuli presented 10dB above threshold. Based on the experimental findings and consideration of health effects relating to vibration exposure, a suitable range of notes for vibrotactile presentation of music is identified as being from C1 to G5. This is more limited than for human hearing but the fundamental frequencies of the human voice, and the notes played by many instruments, lie within it. However, the dynamic range might require compression to avoid the negative effects of amplitude on pitch perception.