Haptic sound-localisation for use in cochlear implant and hearing-aid users
Users of hearing-assistive devices often struggle to locate and segregate sounds, which can make listening in schools, cafes, and busy workplaces extremely challenging. A recent study in unilaterally implanted CI users showed that sound-localisation was improved when the audio received by behind-the...
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| Veröffentlicht in: | Scientific reports 2020-08, Vol.10 (1), p.14171-14171, Article 14171 |
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| description | Users of hearing-assistive devices often struggle to locate and segregate sounds, which can make listening in schools, cafes, and busy workplaces extremely challenging. A recent study in unilaterally implanted CI users showed that sound-localisation was improved when the audio received by behind-the-ear devices was converted to haptic stimulation on each wrist. We built on this work, using a new signal-processing approach to improve localisation accuracy and increase generalisability to a wide range of stimuli. We aimed to: (1) improve haptic sound-localisation accuracy using a varied stimulus set and (2) assess whether accuracy improved with prolonged training. Thirty-two adults with normal touch perception were randomly assigned to an experimental or control group. The experimental group completed a 5-h training regime and the control group were not trained. Without training, haptic sound-localisation was substantially better than in previous work on haptic sound-localisation. It was also markedly better than sound-localisation by either unilaterally or bilaterally implanted CI users. After training, accuracy improved, becoming better than for sound-localisation by bilateral hearing-aid users. These findings suggest that a wrist-worn haptic device could be effective for improving spatial hearing for a range of hearing-impaired listeners. |
| doi_str_mv | 10.1038/s41598-020-70379-2 |
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A recent study in unilaterally implanted CI users showed that sound-localisation was improved when the audio received by behind-the-ear devices was converted to haptic stimulation on each wrist. We built on this work, using a new signal-processing approach to improve localisation accuracy and increase generalisability to a wide range of stimuli. We aimed to: (1) improve haptic sound-localisation accuracy using a varied stimulus set and (2) assess whether accuracy improved with prolonged training. Thirty-two adults with normal touch perception were randomly assigned to an experimental or control group. The experimental group completed a 5-h training regime and the control group were not trained. Without training, haptic sound-localisation was substantially better than in previous work on haptic sound-localisation. It was also markedly better than sound-localisation by either unilaterally or bilaterally implanted CI users. After training, accuracy improved, becoming better than for sound-localisation by bilateral hearing-aid users. These findings suggest that a wrist-worn haptic device could be effective for improving spatial hearing for a range of hearing-impaired listeners.</description><identifier>ISSN: 2045-2322</identifier><identifier>EISSN: 2045-2322</identifier><identifier>DOI: 10.1038/s41598-020-70379-2</identifier><identifier>PMID: 32843659</identifier><language>eng</language><publisher>London: Nature Publishing Group UK</publisher><subject>631/378/2619 ; 631/378/2620 ; 631/477/2811 ; 639/166/985 ; 692/308/575 ; Accuracy ; Adult ; Cochlea ; Cochlear Implants ; Correction of Hearing Impairment - instrumentation ; Equipment Design ; Female ; Hearing ; Hearing Aids ; Hearing Loss, Bilateral - physiopathology ; Hearing Loss, Bilateral - rehabilitation ; Humanities and Social Sciences ; Humans ; Male ; multidisciplinary ; Patient Education as Topic ; Persons With Hearing Impairments - psychology ; Schools ; Science ; Science (multidisciplinary) ; Sensory Aids ; Signal processing ; Signal Processing, Computer-Assisted ; Sound ; Sound Localization - physiology ; Speech Perception ; Touch - physiology ; Training ; Wearable Electronic Devices ; Wrist ; Young Adult</subject><ispartof>Scientific reports, 2020-08, Vol.10 (1), p.14171-14171, Article 14171</ispartof><rights>The Author(s) 2020</rights><rights>The Author(s) 2020. 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A recent study in unilaterally implanted CI users showed that sound-localisation was improved when the audio received by behind-the-ear devices was converted to haptic stimulation on each wrist. We built on this work, using a new signal-processing approach to improve localisation accuracy and increase generalisability to a wide range of stimuli. We aimed to: (1) improve haptic sound-localisation accuracy using a varied stimulus set and (2) assess whether accuracy improved with prolonged training. Thirty-two adults with normal touch perception were randomly assigned to an experimental or control group. The experimental group completed a 5-h training regime and the control group were not trained. Without training, haptic sound-localisation was substantially better than in previous work on haptic sound-localisation. It was also markedly better than sound-localisation by either unilaterally or bilaterally implanted CI users. 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After training, accuracy improved, becoming better than for sound-localisation by bilateral hearing-aid users. These findings suggest that a wrist-worn haptic device could be effective for improving spatial hearing for a range of hearing-impaired listeners.</abstract><cop>London</cop><pub>Nature Publishing Group UK</pub><pmid>32843659</pmid><doi>10.1038/s41598-020-70379-2</doi><tpages>1</tpages><orcidid>https://orcid.org/0000-0002-8638-8522</orcidid><oa>free_for_read</oa></addata></record> |
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| subjects | 631/378/2619 631/378/2620 631/477/2811 639/166/985 692/308/575 Accuracy Adult Cochlea Cochlear Implants Correction of Hearing Impairment - instrumentation Equipment Design Female Hearing Hearing Aids Hearing Loss, Bilateral - physiopathology Hearing Loss, Bilateral - rehabilitation Humanities and Social Sciences Humans Male multidisciplinary Patient Education as Topic Persons With Hearing Impairments - psychology Schools Science Science (multidisciplinary) Sensory Aids Signal processing Signal Processing, Computer-Assisted Sound Sound Localization - physiology Speech Perception Touch - physiology Training Wearable Electronic Devices Wrist Young Adult |
| title | Haptic sound-localisation for use in cochlear implant and hearing-aid users |
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