Sensitivity to haptic sound-localisation cues.
Sensitivity to haptic sound-localisation cues.
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DOI：
10.1038/s41598-020-79150-z
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发表时间：
2021-01-11
影响因子：
4.6
通讯作者：
Perry SW
中科院分区：
文献类型：
--
作者：
Fletcher MD;Zgheib J;Perry SW
助听器和人工耳蜗 (CI) 用户常常难以定位和隔离声音。主要的声音定位线索是耳朵的时间和强度差异。最近的一项研究表明，当通过每个手腕上的触觉刺激提供这些提示时，CI 用户可以更好地定位声音。然而，手腕对这些线索的敏感性以及这种敏感性对衰老的鲁棒性尚不清楚。目前的研究表明，手腕上的时差敏感性比耳朵上的时差敏感性差得多，并且随着年龄的增长而下降。相比之下，人们发现对手腕间强度差异的高敏感性对衰老具有很强的抵抗力。在调幅和未调制正弦曲线的一系列刺激强度中观察到这种高灵敏度，并且对于正常听力个体来说，匹配的跨耳强度差灵敏度。此外，手腕上触觉刺激的可用动态范围比 CI 大约大四倍。这些发现表明高精度触觉声音定位是可以实现的，这可以帮助许多听力受损的听众。此外，高保真跨手腕强度信息可以传输的发现可以在人机界面中利用，以增强虚拟现实并改善军事、医疗或研究机器人的远程控制。
Hearing aid and cochlear implant (CI) users often struggle to locate and segregate sounds. The dominant sound-localisation cues are time and intensity differences across the ears. A recent study showed that CI users locate sounds substantially better when these cues are provided through haptic stimulation on each wrist. However, the sensitivity of the wrists to these cues and the robustness of this sensitivity to aging is unknown. The current study showed that time difference sensitivity is much poorer across the wrists than across the ears and declines with age. In contrast, high sensitivity to across-wrist intensity differences was found that was robust to aging. This high sensitivity was observed across a range of stimulation intensities for both amplitude modulated and unmodulated sinusoids and matched across-ear intensity difference sensitivity for normal-hearing individuals. Furthermore, the usable dynamic range for haptic stimulation on the wrists was found to be around four times larger than for CIs. These findings suggest that high-precision haptic sound-localisation can be achieved, which could aid many hearing-impaired listeners. Furthermore, the finding that high-fidelity across-wrist intensity information can be transferred could be exploited in human–machine interfaces to enhance virtual reality and improve remote control of military, medical, or research robots.
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影响因子：
4.6
作者：
Fletcher, Mark D.;Thini, Nour;Perry, Samuel W.
通讯作者：
Perry, Samuel W.
影响因子：
0.9
作者：
Gescheider, GA;Edwards, RR;Verrillo, RT
通讯作者：
Verrillo, RT
影响因子：
1.6
作者：
Dorman, Michael F.;Loiselle, Louise H.;Gifford, Rene H.
通讯作者：
Gifford, Rene H.
DOI：
10.1016/0013-4694(80)90007-3
发表时间：
1980-01-01
期刊：
ELECTROENCEPHALOGRAPHY AND CLINICAL NEUROPHYSIOLOGY
影响因子：
--
作者：
DESMEDT, JE;CHERON, G
通讯作者：
CHERON, G
DOI：
10.3758/bf03210362
发表时间：
1972-01-01
期刊：
PERCEPTION & PSYCHOPHYSICS
影响因子：
--
作者：
CRAIG, JC
通讯作者：
CRAIG, JC