AudiologyPub Date : 2011-06-30DOI: 10.21848/AUDIOL.2011.7.1.10
So-Hyun Cho
{"title":"A Review on the Theoretical Background andIts Application of Event-Related Brain Potentials","authors":"So-Hyun Cho","doi":"10.21848/AUDIOL.2011.7.1.10","DOIUrl":"https://doi.org/10.21848/AUDIOL.2011.7.1.10","url":null,"abstract":"A Review on the Theoretical Background and Its Application of Event-Related Brain Potentials","PeriodicalId":30299,"journal":{"name":"Audiology","volume":"7 1","pages":"10-18"},"PeriodicalIF":0.0,"publicationDate":"2011-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"68458573","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}
AudiologyPub Date : 2011-06-30DOI: 10.21848/AUDIOL.2011.7.1.51
Chul-Hee Choi
{"title":"Therapeutic effect of combined antioxidant drugs (4-OHPBN plus NAC) onacute acoustic trauma in terms of distortion product otoacoustic emission","authors":"Chul-Hee Choi","doi":"10.21848/AUDIOL.2011.7.1.51","DOIUrl":"https://doi.org/10.21848/AUDIOL.2011.7.1.51","url":null,"abstract":"Therapeutic effect of combined antioxidant drugs (4-OHPBN plus NAC) on acute acoustic trauma in terms of distortion product otoacoustic emission Chul-Hee Choi Department of Audiology and Speech-Language Pathology, College of Medical Sciences, Catholic University of Daegu, Kyung-Buk, Korea Research Institute of Biomimetic Sensory Control, Catholic University of Daegu, Kyung-Buk, Korea Acute acoustic trauma (AAT) induces hearing loss through the primary hair cell death pathway called apoptosis. The hair cell death occurs by over-production of reactive oxygen species, reactive nitrogen species, and other free radicals, which result from oxidative stress destroying the antioxidant defense mechanisms in the cochlea. Pharmacological approaches have been developed to prevent or treat cochlear damage induced by AAT. The objective of this study is to investigate the therapeutic effect of the combined antioxidant drugs (4-OHPBN plus NAC) in treating hearing loss induced by AAT when these drugs are orally administered. Thirty female chinchillas (six for each group) were exposed to a 105 dB SPL octave-band noise centered at 4 kHz for 6 hours. A combination of 4-hydroxy phenyl-N-tert-butylnitrone (4-OHPBN) plus N-acetyl-L-cystein (NAC) were orally administered to all experimental groups giving a first injection 4 hour after noise exposure and continually injecting twice daily for the next two days. Cubic distortion product otoacoustic emissions (DPOAE) before noise exposure and 21 days after noise exposure were obtained and statistically analyzed. The cubic DPOAE amplitudes were significantly different among different groups at different frequencies. The oral administration of 4-OHPBN plus NAC significantly increased permanent DPOAE amplitude. The increase was partially correlated with the dose of 4-OHPBN plus NAC. These results demonstrate that the combination of 4-OHPBN plus NAC can treat acute acoustic trauma although these drugs are orally administered. At the high dose of 4-OHPBN (75 mg/kg) plus NAC (200 mg/kg), the cubic DPOAE amplitude was reduced compared to those of 4-OHPBN (50 mg/kg) plus NAC (100 mg/kg). This reduction indicates that the only highest dose of 4-OHPBN may be ototoxic.","PeriodicalId":30299,"journal":{"name":"Audiology","volume":"7 1","pages":"51-59"},"PeriodicalIF":0.0,"publicationDate":"2011-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"68458779","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}
AudiologyPub Date : 2011-06-30DOI: 10.21848/AUDIOL.2011.7.1.84
Misook Lee, Soojin Cho
{"title":"The Changes of Auditory Performance After Cochlear Implantation inChild with KID syndrome","authors":"Misook Lee, Soojin Cho","doi":"10.21848/AUDIOL.2011.7.1.84","DOIUrl":"https://doi.org/10.21848/AUDIOL.2011.7.1.84","url":null,"abstract":"The Changes of Auditory Performance After Cochlear Implantation in Child with KID syndrome Misook Lee and Soojin Cho Jeeum Auditory Rehabilitation Center, Daegu, Korea Department of Speech Pathology & Audiology, Daebul University, Yeongam, Korea Keratitis-ichthyosis-deafness (KID) syndrome is a rare congenital ectodermal disorder, caused by heterozygous missense mutation in GJB2, encoding the gap junction protein connexin 26. This case review focused on the auditory performance after cochlear implantation for a child with KID syndrome. The average score of auditory performance improved steadily after the use of cochlear implant and continued over for 12 months. Moreover, Six months after cochlear implantation, the subject showed a significant improvement in auditory performance. In particular the score of Monosyllabic-Trochee-Polysyllabic word (MTP) was improved from 8.3% to 100% for 12 months. The results of this case suggested that auditory rehabilitation and cochlear implantation for a child with KID syndrome would be effective and important.","PeriodicalId":30299,"journal":{"name":"Audiology","volume":"7 1","pages":"84-88"},"PeriodicalIF":0.0,"publicationDate":"2011-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"68458796","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}
AudiologyPub Date : 2011-02-03DOI: 10.1080/00206098709081549
R. Margolis, J. Heller
{"title":"Screening Tympanometry: Criteria for Medical Referral: Original Papers","authors":"R. Margolis, J. Heller","doi":"10.1080/00206098709081549","DOIUrl":"https://doi.org/10.1080/00206098709081549","url":null,"abstract":"Tympanograms were obtained from normal preschool and adult subjects with a prototype hand-held tympanometer to obtain normative values for four tympanometric variables: static admittance, equivalent ear canal volume, tympanometric peak pressure, and gradient. Effects of age group, sex, and pump speed (200 or 400 daPa/s) were determined. The results were incorporated into a four-part screening protocol (history, visual inspection, audiometry, and tympanometry) designed to reduce the excessive error rates associated with screening strategies that rely exclusively on tympanometry.","PeriodicalId":30299,"journal":{"name":"Audiology","volume":"26 1","pages":"197-208"},"PeriodicalIF":0.0,"publicationDate":"2011-02-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1080/00206098709081549","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"58780894","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}
AudiologyPub Date : 2010-06-01DOI: 10.21848/AUDIOL.2010.6.1.60
Misook Lee, Hyunsook Jang
{"title":"A Preliminary Study on the Development of Auditory BehaviorChecklist for Infant-Toddler","authors":"Misook Lee, Hyunsook Jang","doi":"10.21848/AUDIOL.2010.6.1.60","DOIUrl":"https://doi.org/10.21848/AUDIOL.2010.6.1.60","url":null,"abstract":"The purpose of this study aimed to develop an auditory behavior checklist in order to investigate the auditory development of children \u0000with cochlear implants and compare that of peers with normal hearing. The auditory behavior checklist developed for this study \u0000was a parent questionnaire which included a total of 80 questions consisting of 5 questions for each 3-month developmental stages \u0000between the chronological age of 0-48 months. The items of the auditory behavior checklist were selected from the literature related \u0000to children’s auditory behavior development of early childhood education, special education, and language development. The validity \u0000and reliability for items were conducted by attempting a content validity analysis, a factor analysis, and an internal consistency reliability \u0000analysis. Receptive-listening scores were obtained from 350 normal hearing infants and toddlers in ages 0 to 48 months. The \u0000results of this study were summarized as follows; First, reliabilities of the items of auditory behavior checklist showed 0.821 in receptive \u0000listening and 0.834 in expressive listening significantly. Also, the correlation coefficient about receptive-listening was significantly \u0000high ranging from 0.805 to 0.940. Second, the means and standard deviations for receptive-listening scores obtained from 350 \u0000normal hearing infants and toddlers revealed 17.43±1.91 (16.72-18.06) respectively. The difference in scores was less than 1, indicating \u0000a negligible difference. Significant gender differences were not found among normal hearing groups. In conclusion, cochlear \u0000implantation in children at the youngest age possible allows the best opportunity for them to develop listening behaviors that approximate \u0000those of their peers with normal hearing. \u0000KEY WORDS:Auditory behavior checklist·Auditory development·Reliability·Validity.","PeriodicalId":30299,"journal":{"name":"Audiology","volume":"6 1","pages":"60-75"},"PeriodicalIF":0.0,"publicationDate":"2010-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"68458511","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}
AudiologyPub Date : 2009-12-31DOI: 10.21848/audiol.2009.5.1.36
Yeonmee Joo, Hyunsook Jang
{"title":"Effects of Frequency Range and Degree of Hearing Loss on WordRecognition in Elderly Listeners","authors":"Yeonmee Joo, Hyunsook Jang","doi":"10.21848/audiol.2009.5.1.36","DOIUrl":"https://doi.org/10.21848/audiol.2009.5.1.36","url":null,"abstract":"Effects of Frequency Range and Degree of Hearing Loss on Word Recognition in Elderly Listeners Yeonmee Joo and Hyunsook Jang Purn ORL Clinic, Seoul, Korea Division of Speech Pathology and Audiology, College of Natural Science, Hallym University, Chuncheon, Korea The purpose of this study was to identify the word recognition difficulties in the hearing-impaired elderly according to frequency range and degree of hearing loss Word recognition scores were measured at the most comfortable level (MCL) and at a conversational level of 55 dB HL. This study included 10 normal-hearing and 90 impaired-hearing elderly subjects. The 90 hearing-impaired subjects were divided into 9 groups according to the combination of three frequency ranges of hearing loss (1,000-6,000 Hz, 2,000-6,000 Hz, & 3,000-6,000 Hz) and three degrees of hearing loss (26-35 dB, 36-45 dB, & 46-55 dB). At the most comfortable level, recognition scores revealed a range of 86-96% for all elderly groups. There was no significant recognition difference among three frequency ranges of hearing loss. Recognition performance decreased as degree of hearing loss increased. At a conversational level, recognition scores revealed a range of 68-96% for all elderly groups. Recognition performance was significantly deteriorated with increasing degree of hearing loss and increasing frequency ranges of hearing loss. When frequency range of hearing loss was wider than 2,000-6,000 Hz and when degree of hearing loss became greater than 36 dB, recognition performance was significantly poorer at a conversational level than at the most comfortable level. The results of this study show that frequency range and degree of hearing loss effects on word recognition in the elderly are significant if word is presented at a conversational level. These findings suggest that word recognition measured at a conversational level provides better prediction for communication difficulties in elderly listeners with impaired hearing. Moreover, it can be usefully applied for counseling and rehabilitation for the elderly with impaired hearing.","PeriodicalId":30299,"journal":{"name":"Audiology","volume":"5 1","pages":"36-41"},"PeriodicalIF":0.0,"publicationDate":"2009-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"68458939","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}
AudiologyPub Date : 2009-07-07DOI: 10.4135/9781483346489.n285
H. Ewertsen, H. Birk-Nielsen
{"title":"Social Hearing Handicap Index","authors":"H. Ewertsen, H. Birk-Nielsen","doi":"10.4135/9781483346489.n285","DOIUrl":"https://doi.org/10.4135/9781483346489.n285","url":null,"abstract":"As a supplement to the acoustic examination at the hearing centre, a questionnaire has devised to reflect patients’ hearing handicaps in daily life. It consists of 21 questions, with which a patient's bias to answer in scored. The principles on which the test was prepared are discussed in general and can therefore be applied to other languages. 25 normally-hearing individuals were examined, together with 198 patients with all kinds of hearing disorders; a rather high correlation (90%) was found between the social hearing handicap index (SHI), and the degree of hearing handicap (SRT). It has, however, been proved that other factor, such as lip-reading capacity, influence the social handicap. The SHI, before and after audiological treatment at the hearing centre, serves as a useful standard to control the effectiveness of our measures, since they are experienced by the patient himself.","PeriodicalId":30299,"journal":{"name":"Audiology","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2009-07-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70625644","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}