Purpose: It was intended to measure the sound intensity of children's sound books and to compare them with the standards of Korea and the International Standards Organization (ISO).Methods: The loudness of 15 children’s sound books was measured at a distance of 25 cm (child’s arm length), and 2.5 cm length of external auditory canal. Measurements taken three times with each book were performed, and the overall sound intensity of the sound books and the sound intensity of each button were measured and compared.Results: Compared with the Korean standard, all the buttons of all books exceeded the standard for the sound volume of the children’s book measured at a distance of 2.5 cm. When comparing the maximum sound intensity measured at a distance of 25 cm with 85 LAmax, a total of 168 buttons of these, 25 (14.88%) were recorded as exceeding the maximum loudness. According to the standards of the ISO, all buttons in all books were below the standard 85 LAeq.Conclusion: Several children’s books are loud enough to cause noise-induced hearing loss, especially when they are placed close to the ear. Strict standards for sound children’s books are required, and it is important to put a warning on the cover of the book. It is expected that the sound intensity of the children’s sound book presented in this study can be referenced when referring to the loudness during hearing rehabilitation in children.
{"title":"The Noise Level Measurements of Children’s Sound Books","authors":"S. Joo, E. Shin","doi":"10.21848/asr.210031","DOIUrl":"https://doi.org/10.21848/asr.210031","url":null,"abstract":"Purpose: It was intended to measure the sound intensity of children's sound books and to compare them with the standards of Korea and the International Standards Organization (ISO).Methods: The loudness of 15 children’s sound books was measured at a distance of 25 cm (child’s arm length), and 2.5 cm length of external auditory canal. Measurements taken three times with each book were performed, and the overall sound intensity of the sound books and the sound intensity of each button were measured and compared.Results: Compared with the Korean standard, all the buttons of all books exceeded the standard for the sound volume of the children’s book measured at a distance of 2.5 cm. When comparing the maximum sound intensity measured at a distance of 25 cm with 85 LAmax, a total of 168 buttons of these, 25 (14.88%) were recorded as exceeding the maximum loudness. According to the standards of the ISO, all buttons in all books were below the standard 85 LAeq.Conclusion: Several children’s books are loud enough to cause noise-induced hearing loss, especially when they are placed close to the ear. Strict standards for sound children’s books are required, and it is important to put a warning on the cover of the book. It is expected that the sound intensity of the children’s sound book presented in this study can be referenced when referring to the loudness during hearing rehabilitation in children.","PeriodicalId":36841,"journal":{"name":"Audiology and Speech Research","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2021-10-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83014478","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Purpose: This study aimed to measure the test-retest reliability of the Korean Matrix sentence-in-noise test in a sound-field testing condition.Methods: Fifty-five listeners with normal hearing participated. The sound-field speech-in-noise test was administered with a front loudspeaker by presenting noise at a fixed level (65 dB SPL) while adaptively adjusting the sentence level based on the listener’s response. The speech reception thresholds (SRTs) corresponding to 50% sentence-in-noise intelligibility were obtained using speech-shaped noise (SSN), International Collegium of Rehabilitative Audiology (ICRA) noise, and International Speech Test Signal (ISTS) noise. For the test-retest reliability, each subject was tested twice in a 2-week interval. The test-retest reliabilities were judged by the intraclass correlation coefficient (ICC), the minimal detectable change (MDC) values, and Bland-Altman plots.Results: The test-retest reliabilities of the Korean Matrix sentence test were good (ICC, 0.84~0.86) across SSN, ICRA, ISTS noises. The MDC was 0.92 dB SNR for SSN and 2.83 and 2.98 dB SNR for ICRA and ISTS, indicating the random measurement error varied across the types of noise.Conclusion: The Korean Matrix sentence-in-noise test can be used as a reliable tool to assess speech-in-noise intelligibility in sound-field testing condition. Further study across various sessions would strengthen the present finding.
目的:在声场测试条件下，考察朝鲜语矩阵噪声句子测试的重测信度。方法:55名听力正常的听者参与。声场噪声中的语音测试采用前置扬声器，以固定水平(65 dB SPL)呈现噪声，同时根据听者的反应自适应调整句子水平。采用语音形状噪声(SSN)、国际康复听力学学会(ICRA)噪声和国际语音测试信号(ISTS)噪声获得了50%句子可理解度对应的语音接收阈值(srt)。对于重测信度，每个被试以2周为间隔进行两次测试。通过类内相关系数(ICC)、最小可检测变化(MDC)值和Bland-Altman图判断重测信度。结果:朝鲜语矩阵句检验在SSN、ICRA、ISTS噪声下的重测信度为0.84~0.86。SSN的最小信噪比为0.92 dB, ICRA和ist的最小信噪比分别为2.83和2.98 dB，表明随机测量误差随噪声类型的不同而变化。结论:在声场测试条件下，朝鲜语矩阵噪声句子测试可作为评价噪声语音可理解性的可靠工具。在各届会议期间的进一步研究将加强目前的结论。
{"title":"Test-retest Reliability of the Korean Matrix Sentence-in-noise Recognition in Sound-field Testing Condition","authors":"Yukyeong Jung, J. Han, Seok-Ju Choi, J. Lee","doi":"10.21848/asr.210037","DOIUrl":"https://doi.org/10.21848/asr.210037","url":null,"abstract":"Purpose: This study aimed to measure the test-retest reliability of the Korean Matrix sentence-in-noise test in a sound-field testing condition.Methods: Fifty-five listeners with normal hearing participated. The sound-field speech-in-noise test was administered with a front loudspeaker by presenting noise at a fixed level (65 dB SPL) while adaptively adjusting the sentence level based on the listener’s response. The speech reception thresholds (SRTs) corresponding to 50% sentence-in-noise intelligibility were obtained using speech-shaped noise (SSN), International Collegium of Rehabilitative Audiology (ICRA) noise, and International Speech Test Signal (ISTS) noise. For the test-retest reliability, each subject was tested twice in a 2-week interval. The test-retest reliabilities were judged by the intraclass correlation coefficient (ICC), the minimal detectable change (MDC) values, and Bland-Altman plots.Results: The test-retest reliabilities of the Korean Matrix sentence test were good (ICC, 0.84~0.86) across SSN, ICRA, ISTS noises. The MDC was 0.92 dB SNR for SSN and 2.83 and 2.98 dB SNR for ICRA and ISTS, indicating the random measurement error varied across the types of noise.Conclusion: The Korean Matrix sentence-in-noise test can be used as a reliable tool to assess speech-in-noise intelligibility in sound-field testing condition. Further study across various sessions would strengthen the present finding.","PeriodicalId":36841,"journal":{"name":"Audiology and Speech Research","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2021-10-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75416610","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Purpose: The “oldest-old” is the heterogeneous population compared with the younger-old in several cognitive-communication aspects. Accordingly, it is necessary to intervene in them discriminately. This study aimed to suggest the performance profiles by cognitive-communication tasks for intervention in oldest-old.Methods: Sixty-four oldest-old subjects aged 80 or older years performed 16 subtasks for the five cognitive-communication domains. And the performance profiles of group I (84.00 ± 2.62 years) and II (93.38 ± 1.61 years) were analyzed.Results: The main findings were as follows. Firstly, two groups had significant differences in performances of most tasks including working memory, reasoning, word fluency, and subjective communication. Secondly, five communication tasks were significantly correlated with all cognitive tasks and were predicted by the reasoning tasks like similarity in group I. Thirdly, word fluency and pragmatic expression tasks were significantly correlated with all cognitive tasks. Tasks including verbal problem solving were found to be the best predictors of confrontation naming in group II.Conclusion: Current study provides evidence-based information to support cognitive-communication intervention for the oldest-old. These results also can contribute to increase the efficacy of the cognitive-communicative intervention.
{"title":"The Profile of Task Performances for Cognitive-communicative Intervention in the Oldest-Old","authors":"M. S. Lee","doi":"10.21848/asr.210023","DOIUrl":"https://doi.org/10.21848/asr.210023","url":null,"abstract":"Purpose: The “oldest-old” is the heterogeneous population compared with the younger-old in several cognitive-communication aspects. Accordingly, it is necessary to intervene in them discriminately. This study aimed to suggest the performance profiles by cognitive-communication tasks for intervention in oldest-old.Methods: Sixty-four oldest-old subjects aged 80 or older years performed 16 subtasks for the five cognitive-communication domains. And the performance profiles of group I (84.00 ± 2.62 years) and II (93.38 ± 1.61 years) were analyzed.Results: The main findings were as follows. Firstly, two groups had significant differences in performances of most tasks including working memory, reasoning, word fluency, and subjective communication. Secondly, five communication tasks were significantly correlated with all cognitive tasks and were predicted by the reasoning tasks like similarity in group I. Thirdly, word fluency and pragmatic expression tasks were significantly correlated with all cognitive tasks. Tasks including verbal problem solving were found to be the best predictors of confrontation naming in group II.Conclusion: Current study provides evidence-based information to support cognitive-communication intervention for the oldest-old. These results also can contribute to increase the efficacy of the cognitive-communicative intervention.","PeriodicalId":36841,"journal":{"name":"Audiology and Speech Research","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2021-10-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"72435296","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Yerim Shin, Jiyeo Yun, J. Kyong, S. Jo, Jinsook Kim
Purpose: Enhancement of musical perception has a positive impact on the emotional stability, quality of life, and aural rehabilitation in individuals with hearing loss. In Korea, however, there are a few test batteries available for properly assessing their abilities to perceive music. The purpose of this study was to develop a evaluation material for the music perception ability, Assessment of Music Perception (AMP) considering the Korean culture and emotion.Methods: A total of 15 normal hearing adults (33.1 ± 11.4 years) were recruited. They performed the AMP which includes eight sub-tests: pitch, melody, rhythm, timbre, and harmony perception test, emotional reaction test, Music listening Attitudes and Satisfaction Questionnaire (MASQ), and Mismatch negativity (MMN).Results: The average percentage of correct answer was 94.0% ± 6.1% in pitch perception test, 94.0% ± 7.1% in melody perception test, 99.3% ± 1.8% in rhythm perception test, 78.9% ± 41.8% in timbre perception test, 96.7% ± 10.4% in emotional reaction test, 85.7% ± 14.1% in harmony perception test. The area of the negative waveform for MMN was 275.27 ± 225.65 μV·ms with the intensity of 70 dBnHL.Conclusion: Considering high scores of a instrument, a developed AMP could be applied for evaluating the music perception ability. However, a little bit of correction for each factor of materials is recommended for comprehensive AMP material. In the future, the music perception ability of the hearing impaired should be evaluated utilizing AMP.
{"title":"Development of Assessment of Music Perception for the Hearing-impaired","authors":"Yerim Shin, Jiyeo Yun, J. Kyong, S. Jo, Jinsook Kim","doi":"10.21848/asr.210036","DOIUrl":"https://doi.org/10.21848/asr.210036","url":null,"abstract":"Purpose: Enhancement of musical perception has a positive impact on the emotional stability, quality of life, and aural rehabilitation in individuals with hearing loss. In Korea, however, there are a few test batteries available for properly assessing their abilities to perceive music. The purpose of this study was to develop a evaluation material for the music perception ability, Assessment of Music Perception (AMP) considering the Korean culture and emotion.Methods: A total of 15 normal hearing adults (33.1 ± 11.4 years) were recruited. They performed the AMP which includes eight sub-tests: pitch, melody, rhythm, timbre, and harmony perception test, emotional reaction test, Music listening Attitudes and Satisfaction Questionnaire (MASQ), and Mismatch negativity (MMN).Results: The average percentage of correct answer was 94.0% ± 6.1% in pitch perception test, 94.0% ± 7.1% in melody perception test, 99.3% ± 1.8% in rhythm perception test, 78.9% ± 41.8% in timbre perception test, 96.7% ± 10.4% in emotional reaction test, 85.7% ± 14.1% in harmony perception test. The area of the negative waveform for MMN was 275.27 ± 225.65 μV·ms with the intensity of 70 dBnHL.Conclusion: Considering high scores of a instrument, a developed AMP could be applied for evaluating the music perception ability. However, a little bit of correction for each factor of materials is recommended for comprehensive AMP material. In the future, the music perception ability of the hearing impaired should be evaluated utilizing AMP.","PeriodicalId":36841,"journal":{"name":"Audiology and Speech Research","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2021-10-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89828784","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Purpose: The coronavirus disease 2019 (COVID-19) pandemic has severely affected public health and people’s lifestyle. The purpose of this survey study is to investigate audiology services during COVID-19 pandemic to understand the current audiology service situations in Korea and to improve audiology services.Methods: A total of 120 participants (60 audiologists and 60 clients visiting audiologists) were surveyed in this study using online or face-to-face methods. The participants answered 24~25 questions including current status of audiology service, communication difficulties with wearing masks, and the provision of tele-audiology services during COVID-19.Results: The results showed that both audiologists and clients with hearing loss still preferred face-to-face audiology services in COVID-19 situation in spite of 56% of visiting schedule delay and cancellation. The primary audiology services they considered in COVID-19 were hearing aid fitting and maintenance & repair services. Wearing masks has led communication difficulties in both audiologists and clients with hearing loss due to speech level reduction, frequency filtering of sounds, and insufficient visual cues during the conversation. Only 30% of audiologists have provided tele-audiology services, and 4.4% of clients received tele-audiology services during COVID-19.Conclusion: The impacts of COVID-19 in audiology services in South Korea are still progressing. The technical and administrative systems and educational support to improve audiology services in South Korea are necessary.
{"title":"A Survey Study of Audiology Services during the Coronavirus Disease 2019 Pandemic in South Korea","authors":"InOn Kim, S. Oh","doi":"10.21848/asr.210039","DOIUrl":"https://doi.org/10.21848/asr.210039","url":null,"abstract":"Purpose: The coronavirus disease 2019 (COVID-19) pandemic has severely affected public health and people’s lifestyle. The purpose of this survey study is to investigate audiology services during COVID-19 pandemic to understand the current audiology service situations in Korea and to improve audiology services.Methods: A total of 120 participants (60 audiologists and 60 clients visiting audiologists) were surveyed in this study using online or face-to-face methods. The participants answered 24~25 questions including current status of audiology service, communication difficulties with wearing masks, and the provision of tele-audiology services during COVID-19.Results: The results showed that both audiologists and clients with hearing loss still preferred face-to-face audiology services in COVID-19 situation in spite of 56% of visiting schedule delay and cancellation. The primary audiology services they considered in COVID-19 were hearing aid fitting and maintenance & repair services. Wearing masks has led communication difficulties in both audiologists and clients with hearing loss due to speech level reduction, frequency filtering of sounds, and insufficient visual cues during the conversation. Only 30% of audiologists have provided tele-audiology services, and 4.4% of clients received tele-audiology services during COVID-19.Conclusion: The impacts of COVID-19 in audiology services in South Korea are still progressing. The technical and administrative systems and educational support to improve audiology services in South Korea are necessary.","PeriodicalId":36841,"journal":{"name":"Audiology and Speech Research","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2021-10-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77114204","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Purpose: This study evaluates the relationship between tinnitus magnitude and depression and statetrait anxiety.Methods: A total of 65 subjects suffering from tinnitus participated. None reported any hearing problems. The participants filled in the Tinnitus Magnitude Index (TMI), the Korean version of the Beck depression inventory, and the Korean version of state-trait anxiety questionnaires with 61 out of 65 subjects completing all the questionnaires.Results: No significant relationships between tinnitus magnitude and depression or state-trait anxiety were found. However, items for the TMI were found to be significantly related (p < 0.05), and depression and state-strait anxiety also had a significant relationship (p < 0.05).Conclusion: We concluded that the TMI was not sensitive when used for assessing depression and anxiety in individuals who are suffering from tinnitus, which implying that the TMI questionnaire is useful for a quick assessment tool of the severity of tinnitus in individuals.
{"title":"Can the Tinnitus Magnitude Index Reflect the Depression and Anxiety of Tinnitus Sufferers?","authors":"Ha Ryun Kim, Junghwa Bahng","doi":"10.21848/asr.210027","DOIUrl":"https://doi.org/10.21848/asr.210027","url":null,"abstract":"Purpose: This study evaluates the relationship between tinnitus magnitude and depression and statetrait anxiety.Methods: A total of 65 subjects suffering from tinnitus participated. None reported any hearing problems. The participants filled in the Tinnitus Magnitude Index (TMI), the Korean version of the Beck depression inventory, and the Korean version of state-trait anxiety questionnaires with 61 out of 65 subjects completing all the questionnaires.Results: No significant relationships between tinnitus magnitude and depression or state-trait anxiety were found. However, items for the TMI were found to be significantly related (p < 0.05), and depression and state-strait anxiety also had a significant relationship (p < 0.05).Conclusion: We concluded that the TMI was not sensitive when used for assessing depression and anxiety in individuals who are suffering from tinnitus, which implying that the TMI questionnaire is useful for a quick assessment tool of the severity of tinnitus in individuals.","PeriodicalId":36841,"journal":{"name":"Audiology and Speech Research","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2021-10-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90841734","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Purpose: For comparison of a semantic knowledge processing of the elderly, particularly the normal individuals and individuals with subjective memory impairment, this study aims to clarify what factors of semantic knowledge task could sensitively discriminate between the two groups by conducting various types of tasks and analyzing the aspects.Methods: High/low frequency category fluency test, concrete/abstract noun word defining test, and semantic association task were performed by 30 normal subjects and 30 subjective memory impaired subjects over 65 years old. Total and each subcategory scores were assessed for the category fluency test and word defining test, and correct response and reaction time were measured for the semantic association task.Results: It was found that there were significant differences between the two groups in the total score of the category fluency task (p < 0.001), low-frequency category score, abstract noun word defining task score (p < 0.05), and reaction time of semantic association task (p < 0.01).Conclusion: The result showed that in case of a target word with lower contact frequency and more abstract concept, the elderly with subjective memory impairment have difficulties in neural-networking activation of semantic knowledge and control of interruption stimulation when approaching a target word, with increased reaction time. This findings demonstrate that a semantic and lexical task has a clinical significance in discriminating a subjective memory impairment group.
{"title":"Characteristics of Performance according to Type of Semantic Lexical Task in Normal Elderly and Individuals with Subjective Memory Impairment","authors":"S. Park, JungWan Kim","doi":"10.21848/asr.210005","DOIUrl":"https://doi.org/10.21848/asr.210005","url":null,"abstract":"Purpose: For comparison of a semantic knowledge processing of the elderly, particularly the normal individuals and individuals with subjective memory impairment, this study aims to clarify what factors of semantic knowledge task could sensitively discriminate between the two groups by conducting various types of tasks and analyzing the aspects.Methods: High/low frequency category fluency test, concrete/abstract noun word defining test, and semantic association task were performed by 30 normal subjects and 30 subjective memory impaired subjects over 65 years old. Total and each subcategory scores were assessed for the category fluency test and word defining test, and correct response and reaction time were measured for the semantic association task.Results: It was found that there were significant differences between the two groups in the total score of the category fluency task (p < 0.001), low-frequency category score, abstract noun word defining task score (p < 0.05), and reaction time of semantic association task (p < 0.01).Conclusion: The result showed that in case of a target word with lower contact frequency and more abstract concept, the elderly with subjective memory impairment have difficulties in neural-networking activation of semantic knowledge and control of interruption stimulation when approaching a target word, with increased reaction time. This findings demonstrate that a semantic and lexical task has a clinical significance in discriminating a subjective memory impairment group.","PeriodicalId":36841,"journal":{"name":"Audiology and Speech Research","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2021-07-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81439207","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Audiologists are experts in providing specialized treatment for evaluating and managing hearing loss through hearing technology. The purpose of this study is to review the education status of major foreign countries regarding the training of audiologists, their certification management systems, and the audiology education regulations according to international standards; this study compares these with the domestic (i.e., Republic of Korea) education status, certification management system, and audiology education regulations. The regulations, reports, and official documents related to domestic and overseas regarding audiology systems were reviewed and compared. The domestic audiologist education and qualification system is in fair conformity with foreign countries and international standards, but there are areas that need to be improved. If the domestic audiologist qualification system is improved to comply with advanced foreign national audiologist qualification systems and international standards, it will be possible to cultivate a more professional domestic audiologist workforce.
{"title":"Comparison of Domestic and Foreign Audiologist Education Status and Qualification System","authors":"In-Ki Jin, S. Oh","doi":"10.21848/asr.210028","DOIUrl":"https://doi.org/10.21848/asr.210028","url":null,"abstract":"Audiologists are experts in providing specialized treatment for evaluating and managing hearing loss through hearing technology. The purpose of this study is to review the education status of major foreign countries regarding the training of audiologists, their certification management systems, and the audiology education regulations according to international standards; this study compares these with the domestic (i.e., Republic of Korea) education status, certification management system, and audiology education regulations. The regulations, reports, and official documents related to domestic and overseas regarding audiology systems were reviewed and compared. The domestic audiologist education and qualification system is in fair conformity with foreign countries and international standards, but there are areas that need to be improved. If the domestic audiologist qualification system is improved to comply with advanced foreign national audiologist qualification systems and international standards, it will be possible to cultivate a more professional domestic audiologist workforce.","PeriodicalId":36841,"journal":{"name":"Audiology and Speech Research","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2021-07-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80147270","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Despite the significant contribution of hearing assistive devices, medications, and surgery to restoring auditory periphery, a large number of people with hearing loss still struggle with understanding speech. This leads many studies on speech perception to move towards the central auditory functions by looking at associated brain activities using macroscopic recording tools such as electroencephalography (EEG). Up until a few years ago, however, limitation has been given to the brain scientists who attempted to investigate speech perception mechanisms using the EEG. In particular, short duration of speech segments has inevitably been used to elicit auditory evoked potential, even though they were too brief to be considered as speech. Today, however, advance in neural engineering and better understanding of neural mechanism have better facilitated brain scientists to perform studies with running stream of continuous speech and expand the scope of EEG studies to include comprehension of more realistic speech envelope. The purpose of this study is to review literatures on neural tracking to speech envelope to discuss it in Audiology perspective. This review article consists of seven subjects including introduction, neural tracking theories, neural tracking measure, signal processing & analysis, literature review on neural tracking associated with hearing loss, application of neural tracking to audiology, and conclusion. We noted that neural tracking has potential to be used in clinical sets to objectively evaluate speech comprehension for people with hearing loss in the future.
{"title":"A Literature Review of Neural Tracking to Speech Envelope from the View of Audiology","authors":"Sungmin Lee","doi":"10.21848/asr.210004","DOIUrl":"https://doi.org/10.21848/asr.210004","url":null,"abstract":"Despite the significant contribution of hearing assistive devices, medications, and surgery to restoring auditory periphery, a large number of people with hearing loss still struggle with understanding speech. This leads many studies on speech perception to move towards the central auditory functions by looking at associated brain activities using macroscopic recording tools such as electroencephalography (EEG). Up until a few years ago, however, limitation has been given to the brain scientists who attempted to investigate speech perception mechanisms using the EEG. In particular, short duration of speech segments has inevitably been used to elicit auditory evoked potential, even though they were too brief to be considered as speech. Today, however, advance in neural engineering and better understanding of neural mechanism have better facilitated brain scientists to perform studies with running stream of continuous speech and expand the scope of EEG studies to include comprehension of more realistic speech envelope. The purpose of this study is to review literatures on neural tracking to speech envelope to discuss it in Audiology perspective. This review article consists of seven subjects including introduction, neural tracking theories, neural tracking measure, signal processing & analysis, literature review on neural tracking associated with hearing loss, application of neural tracking to audiology, and conclusion. We noted that neural tracking has potential to be used in clinical sets to objectively evaluate speech comprehension for people with hearing loss in the future.","PeriodicalId":36841,"journal":{"name":"Audiology and Speech Research","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2021-07-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81515147","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Purpose: The aim of this study was to compose the test for music perception and analyze the characteristic of cochlear implant users’ music perception.Methods: The test was made up with the pitch, melody, and timbre factors, using three low and high frequencies, six music genres, and four types of musical instruments correspondingly. The tests were conducted to 10 normal-hearing (NH) young adults and 10 young cochlear-implant (CI) users.Results: All the music perception tests showed significant differences between NH and CI group [F(1, 4) = 0.018, p = 0.019]. In the pitch test, CI group showed significantly lower correction rate(51.3%) than NH group (82.7%) did with higher correction rates in low frequencies. In the melody test, CI group showed significantly lower correction rate (29.7%) than NH group (95.8%) did with the highest performance in folk songs (51.7%). In the timbre test, CI group showed significantly reduced performance (22.5%) than NH group (65.8%) did. For both CI and NH groups, the pitched percussion showed the highest scores (45% and 100%) while the woodwind showed the lowest scores (13.3% and 48.3%).Conclusion: Out of three tests, CI group showed better performance in pitch perception than melody and timber perception. CI group showed better performances in low pitch sounds, melodies of familiar genre, and sound of pitched percussion instruments’ timber showing complicated music perception ability. To enhance the music perception ability for CI users by aural rehabilitation, more specified and systematic music perception test material should be developed.
目的:编制人工耳蜗使用者音乐感知测试，分析其音乐感知特征。方法:测试由音高、旋律、音色三个因素组成，分别使用三个低、高频、六种音乐类型、四种乐器。对10名听力正常(NH)的年轻人和10名年轻的人工耳蜗使用者进行了测试。结果:NH组与CI组的所有乐感测试均有显著差异[F(1,4) = 0.018, p = 0.019]。在音高测试中，CI组的校正率(51.3%)明显低于NH组(82.7%)，但低频校正率较高。在旋律测试中，CI组的正确率(29.7%)显著低于NH组(95.8%)，在民谣中表现最高(51.7%)。在音色测试中，CI组的表现(22.5%)明显低于NH组(65.8%)。在CI组和NH组中，有调打击乐器的得分最高(45%和100%)，木管乐器的得分最低(13.3%和48.3%)。结论:在三个测试中，CI组在音高感知上的表现优于旋律感知和木材感知。CI组在低音、熟悉类型的旋律、高音调打击乐器的音色上表现较好，表现出复杂的音乐感知能力。为了通过听觉康复提高CI使用者的音乐感知能力，需要开发更具体、更系统的音乐感知测试材料。
{"title":"A Study for Composition and Comparison of the Music Perception Tests for Normal Hearing and Cochlear Implant Users","authors":"Eunsung Lee, Yerim Shin, S. Jo, Jinsook Kim","doi":"10.21848/asr.210016","DOIUrl":"https://doi.org/10.21848/asr.210016","url":null,"abstract":"Purpose: The aim of this study was to compose the test for music perception and analyze the characteristic of cochlear implant users’ music perception.Methods: The test was made up with the pitch, melody, and timbre factors, using three low and high frequencies, six music genres, and four types of musical instruments correspondingly. The tests were conducted to 10 normal-hearing (NH) young adults and 10 young cochlear-implant (CI) users.Results: All the music perception tests showed significant differences between NH and CI group [F(1, 4) = 0.018, p = 0.019]. In the pitch test, CI group showed significantly lower correction rate(51.3%) than NH group (82.7%) did with higher correction rates in low frequencies. In the melody test, CI group showed significantly lower correction rate (29.7%) than NH group (95.8%) did with the highest performance in folk songs (51.7%). In the timbre test, CI group showed significantly reduced performance (22.5%) than NH group (65.8%) did. For both CI and NH groups, the pitched percussion showed the highest scores (45% and 100%) while the woodwind showed the lowest scores (13.3% and 48.3%).Conclusion: Out of three tests, CI group showed better performance in pitch perception than melody and timber perception. CI group showed better performances in low pitch sounds, melodies of familiar genre, and sound of pitched percussion instruments’ timber showing complicated music perception ability. To enhance the music perception ability for CI users by aural rehabilitation, more specified and systematic music perception test material should be developed.","PeriodicalId":36841,"journal":{"name":"Audiology and Speech Research","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2021-07-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74742419","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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