Background and Aim: Speech is known as the most important auditory signal that humans deal with it. Noise can mask speech and prevent spoken information from reaching us. Researchers have been trying to develop indexes to assess speech intelligibility. Speech Intelligibility Index (SII) is one of these indicators and we intend to introduce its nature and applications. Recent Findings: SII is a method that numerically demonstrates the ability to hear speech in difficult listening situations. The number 1.0 indicates that all spoken information is available, while 0.0 indicates that the person does not have access to any information. Hearing loss changes a person’s scores on this index, so we need to use corrective factors to more accurately estimate speech intelligibility. In children, the SII score is different from adults. This indicator can be used in the improvement of hearing aid fitting and more accurate adjustment of cochlear implants. The frequency importance function used to calculate SII has a unique shape in each language. Therefore, SII will also differ in different languages, depending on the nature of each language. Conclusion: SII has emerged as a practical indicator among objective assessments of speech intelligibility. Many have tried to extend and prepare it for use in different groups. Therefore, care should be taken about the use of this index in hearing-impaired people, children, with hearing aids or cochlear implant patients, etc. Evaluation of this index in other languages can help to better adjust the hearing aid based on the characteristics of each language. Keywords: Speech intelligibility index; hearing loss; children; hearing aid; cochlear implant; language
{"title":"Speech Intelligibility Index: A Literature Review","authors":"S. M. Taghavi, G. Mohammadkhani, Hamid Jalilvand","doi":"10.18502/avr.v31i3.9861","DOIUrl":"https://doi.org/10.18502/avr.v31i3.9861","url":null,"abstract":"Background and Aim: Speech is known as the most important auditory signal that humans deal with it. Noise can mask speech and prevent spoken information from reaching us. Researchers have been trying to develop indexes to assess speech intelligibility. Speech Intelligibility Index (SII) is one of these indicators and we intend to introduce its nature and applications. \u0000Recent Findings: SII is a method that numerically demonstrates the ability to hear speech in difficult listening situations. The number 1.0 indicates that all spoken information is available, while 0.0 indicates that the person does not have access to any information. Hearing loss changes a person’s scores on this index, so we need to use corrective factors to more accurately estimate speech intelligibility. In children, the SII score is different from adults. This indicator can be used in the improvement of hearing aid fitting and more accurate adjustment of cochlear implants. The frequency importance function used to calculate SII has a unique shape in each language. Therefore, SII will also differ in different languages, depending on the nature of each language. \u0000Conclusion: SII has emerged as a practical indicator among objective assessments of speech intelligibility. Many have tried to extend and prepare it for use in different groups. Therefore, care should be taken about the use of this index in hearing-impaired people, children, with hearing aids or cochlear implant patients, etc. Evaluation of this index in other languages can help to better adjust the hearing aid based on the characteristics of each language. \u0000 \u0000Keywords: Speech intelligibility index; hearing loss; children; hearing aid; cochlear implant; language","PeriodicalId":34089,"journal":{"name":"Auditory and Vestibular Research","volume":" ","pages":""},"PeriodicalIF":0.5,"publicationDate":"2022-06-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48656110","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}
Mahsa Habibi, S. Farahani, N. Rouhbakhsh, Farzaneh Zamiri Abdollahi, Ehsan Negin, S. Jalaie
Background and Aim: Multiple sclerosis (MS) is neurological disease of the central nervous system. Central auditory nervous system can also be affected by MS. The present study aimed to evaluate monaural and binaural auditory processing in patients with MS. Methods: This cross-sectional study was conducted on 45 patients with MS and 45 normal peers as controls aged 25–45 years. They underwent a central auditory processing test battery including the Persian versions of Buffalo model questionnaire (BMQ), staggered spondee word (SSW) test, quick speech in noise test (QSIN), phonemic synthesis test (PST), and two- pair dichotic digit test (DDT). Results: The results of SSW test, QSIN test, PST, DDT and BMQ in the MS group were significantly different than in the control group (p≤0.001). The results showed the poor performance of patients compared to controls in some monaural and binaural auditory processing skills. Conclusion: Central auditory processing disorder is common among patients with MS. The BMQ is a suitable screening tool for identifying affected people. Dichotic listening skills, phonemic processing and speech perception in noise are impaired in MS patients which can have significant impacts on their quality of life. Keywords: Auditory processing; multiple sclerosis, central auditory nervous system; adults; speech perception
{"title":"Auditory Processing Skills in Patients with Multiple Sclerosis","authors":"Mahsa Habibi, S. Farahani, N. Rouhbakhsh, Farzaneh Zamiri Abdollahi, Ehsan Negin, S. Jalaie","doi":"10.18502/avr.v31i2.9116","DOIUrl":"https://doi.org/10.18502/avr.v31i2.9116","url":null,"abstract":"Background and Aim: Multiple sclerosis (MS) is neurological disease of the central nervous system. Central auditory nervous system can also be affected by MS. The present study aimed to evaluate monaural and binaural auditory processing in patients with MS. \u0000Methods: This cross-sectional study was conducted on 45 patients with MS and 45 normal peers as controls aged 25–45 years. They underwent a central auditory processing test battery including the Persian versions of Buffalo model questionnaire (BMQ), staggered spondee word (SSW) test, quick speech in noise test (QSIN), phonemic synthesis test (PST), and two- pair dichotic digit test (DDT). \u0000Results: The results of SSW test, QSIN test, PST, DDT and BMQ in the MS group were significantly different than in the control group (p≤0.001). The results showed the poor performance of patients compared to controls in some monaural and binaural auditory processing skills. \u0000Conclusion: Central auditory processing disorder is common among patients with MS. The BMQ is a suitable screening tool for identifying affected people. Dichotic listening skills, phonemic processing and speech perception in noise are impaired in MS patients which can have significant impacts on their quality of life. \u0000Keywords: Auditory processing; multiple sclerosis, central auditory nervous system; adults; speech perception","PeriodicalId":34089,"journal":{"name":"Auditory and Vestibular Research","volume":" ","pages":""},"PeriodicalIF":0.5,"publicationDate":"2022-04-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43389725","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}
Amir Majidpour, Mahshid Moheb Aleaba, Maryam Aghamolaei, A. Nazeri
Background and Aim: Dichotic listening (DL) test is a non-invasive method used to study hemispheric asymmetry, hemispheric dominance for language processing, or brain lateralization. In addition to the type, concurrence, and the intensity of stimuli presented to the ears, other factors exist that may have less effect on the DL test results. This review study aims to find these factors. Recent Findings: The factors that affects the DL included ear advantage, attention, working memory, gender, and top-down and bottom-up factors. These factors were reviewed and discussed in detail so that more precise test results can be obtained. Moreover, due to the significant effects of each factor on the test results, manipulation of these factors was also reviewed. Conclusion: According to the results of previous studies, ear advantage, attention, working memory, gender, and top-down and bottom-up factors play an important role in the interpretation of DL results; their negligence during the test can affect the outcomes and provide incorrect brain lateralization results. Keywords: Dichotic listening; ear advantage; top-down; bottom-up; working memory; attention
{"title":"Review of the Factors Affecting Dichotic Listening","authors":"Amir Majidpour, Mahshid Moheb Aleaba, Maryam Aghamolaei, A. Nazeri","doi":"10.18502/avr.v31i2.9111","DOIUrl":"https://doi.org/10.18502/avr.v31i2.9111","url":null,"abstract":"Background and Aim: Dichotic listening (DL) test is a non-invasive method used to study hemispheric asymmetry, hemispheric dominance for language processing, or brain lateralization. In addition to the type, concurrence, and the intensity of stimuli presented to the ears, other factors exist that may have less effect on the DL test results. This review study aims to find these factors. \u0000Recent Findings: The factors that affects the DL included ear advantage, attention, working memory, gender, and top-down and bottom-up factors. These factors were reviewed and discussed in detail so that more precise test results can be obtained. Moreover, due to the significant effects of each factor on the test results, manipulation of these factors was also reviewed. \u0000Conclusion: According to the results of previous studies, ear advantage, attention, working memory, gender, and top-down and bottom-up factors play an important role in the interpretation of DL results; their negligence during the test can affect the outcomes and provide incorrect brain lateralization results. \u0000Keywords: Dichotic listening; ear advantage; top-down; bottom-up; working memory; attention","PeriodicalId":34089,"journal":{"name":"Auditory and Vestibular Research","volume":" ","pages":""},"PeriodicalIF":0.5,"publicationDate":"2022-04-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43661869","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}
Background and Aim: Hearing loss is considered a main cause of speech-language delay and academic performance retardation. This study aimed to detect the prevalence of hearing loss diagnosed for the first time in primary school children. Methods: A cross-sectional study has involved 624, randomly chosen, primary school children. The children have undergone hearing screening using tympanometry, and pure tone audiometry screening in order to detect the children with undiagnosed hearing loss. Results: Six hundred and twenty-four children underwent tympanometry which showed that 481 children have type A Tympanogram, 39 have type C, 16 have type A in one ear and type C in the other, 78 have type B, and 10 of them have type B in one ear and type C in the other. Then all children underwent pure tone audiometry screening and this showed that 565 children have responded to 20 dB for all frequencies, 42 have not responded to 20 dB at any frequency, 27 of them are from those children with type B Tympanogram, 10 children have not responded to 20 dB for frequencies >2000 Hz, 7 of them have not responded to 20 dB at any frequency in one ear with normal responses in the other. Conclusion: School age hearing screening is an important procedure to detect hearing loss in children in order to manage hearing loss as early as possible and avoid its consequences. Keywords: Hearing loss; sensorineural hearing loss; otitis media with effusion; pure tone audiometry; tympanometry; screening
{"title":"Prevalence of Hearing Loss Diagnosed for the First Time in Primary School Children in Damascus, Syria","authors":"Rodaina Nawaf Mehrez","doi":"10.18502/avr.v31i2.9119","DOIUrl":"https://doi.org/10.18502/avr.v31i2.9119","url":null,"abstract":"Background and Aim: Hearing loss is considered a main cause of speech-language delay and academic performance retardation. This study aimed to detect the prevalence of hearing loss diagnosed for the first time in primary school children. \u0000Methods: A cross-sectional study has involved 624, randomly chosen, primary school children. The children have undergone hearing screening using tympanometry, and pure tone audiometry screening in order to detect the children with undiagnosed hearing loss. \u0000Results: Six hundred and twenty-four children underwent tympanometry which showed that 481 children have type A Tympanogram, 39 have type C, 16 have type A in one ear and type C in the other, 78 have type B, and 10 of them have type B in one ear and type C in the other. Then all children underwent pure tone audiometry screening and this showed that 565 children have responded to 20 dB for all frequencies, 42 have not responded to 20 dB at any frequency, 27 of them are from those children with type B Tympanogram, 10 children have not responded to 20 dB for frequencies >2000 Hz, 7 of them have not responded to 20 dB at any frequency in one ear with normal responses in the other. \u0000Conclusion: School age hearing screening is an important procedure to detect hearing loss in children in order to manage hearing loss as early as possible and avoid its consequences. \u0000Keywords: Hearing loss; sensorineural hearing loss; otitis media with effusion; pure tone audiometry; tympanometry; screening","PeriodicalId":34089,"journal":{"name":"Auditory and Vestibular Research","volume":" ","pages":""},"PeriodicalIF":0.5,"publicationDate":"2022-04-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45210008","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}
Background and Aim: This article seeks to examine rights of deaf and unable to hear individuals in international documents as well as domestic Iranian law. In this review, supports in the mentioned documents are discussed and the weaknesses, strengths, objections, and challenges in the laws are analyzed and examined. Lack of access to community facilities lead to marginalization of deaf people. Access to community facilities is an important factor that creates equal opportunities and realizes rights of deaf people. Recent Findings: Iran’s accession to the Treaty on the Rights of disabled people, the Global treaty on Cultural, Public, Economic as well as Children’s title, is one of salient points of these protection laws. By implementing Iran’s national and global commitments regarding titles of the deaf, it is concluded that Comprehensive Law and its executive regulations have been adopted several years before accession to the Contract on the Disability, but they cover most of concepts of the Contract on Education. Conclusion: Given the Senate and the convention, no significant legal action was taken and the program did not address deaf directly. The lack of an effective mechanism for laws protecting the disabled people right is an institutional as well as structural obstacle for realization of disabled people, especially deaf. Keywords: Disability; hard of hearing; human rights; international law; low hearing loss
{"title":"Legal Protect of the Deaf in International Documents and the Iranian Legal System","authors":"Afsaneh Ataee, Valiollah Noori, Zeinab Pourkhaghan","doi":"10.18502/avr.v31i2.9112","DOIUrl":"https://doi.org/10.18502/avr.v31i2.9112","url":null,"abstract":"Background and Aim: This article seeks to examine rights of deaf and unable to hear individuals in international documents as well as domestic Iranian law. In this review, supports in the mentioned documents are discussed and the weaknesses, strengths, objections, and challenges in the laws are analyzed and examined. Lack of access to community facilities lead to marginalization of deaf people. Access to community facilities is an important factor that creates equal opportunities and realizes rights of deaf people. \u0000Recent Findings: Iran’s accession to the Treaty on the Rights of disabled people, the Global treaty on Cultural, Public, Economic as well as Children’s title, is one of salient points of these protection laws. By implementing Iran’s national and global commitments regarding titles of the deaf, it is concluded that Comprehensive Law and its executive regulations have been adopted several years before accession to the Contract on the Disability, but they cover most of concepts of the Contract on Education. \u0000Conclusion: Given the Senate and the convention, no significant legal action was taken and the program did not address deaf directly. The lack of an effective mechanism for laws protecting the disabled people right is an institutional as well as structural obstacle for realization of disabled people, especially deaf. \u0000Keywords: Disability; hard of hearing; human rights; international law; low hearing loss","PeriodicalId":34089,"journal":{"name":"Auditory and Vestibular Research","volume":" ","pages":""},"PeriodicalIF":0.5,"publicationDate":"2022-04-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45016664","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}
Atefeh Abolhasani Zeraatkar, Farzaneh Fatahi, S. Farahani, S. Jalaie
Background and Aim: In a noisy environment, children struggle more than adults to understand speech. Various tests at different levels of cognition are available to evaluate children’s speech perception abilities in a noisy environment. The present study aimed at determining the reliability and equivalency of the Persian version of the quick speech-in-noise (P-Q-SIN) test in 7-12 years old school-aged children. Methods: A total of 120 (60 girls) students with normal hearing were chosen from primary schools in district 2 of Kerman City, Iran. They were in five age groups ranging from 7 to 12 years (24 children per age group). Pure tone audiometry test was performed on the samples, then nine lists of P-Q-SIN of previous studies (Khalili et al. and Shayanmehr et al.) were administered on these participants. To obtain the test-retest reliability, three weeks later, the re-test was performed. Results: In the test-retest reliability, lists 1 and 4 of Khalili et al. and list 2 of Shayanmehr et al. were highly correlated (p<0.05). There were no significant differences between the scores of girls and boys (p>0.05). The participant’s performance improves as the age increases. Conclusion: None of the lists of Shayanmehr et al. was reliable and equivalent. List 1 and 4 of Khalili et al. were reliable and equivalent; therefore, they can be used in clinical application for children in the age range of 7 to 12 years by considering the norm of signal-to-noise ratio loss. Keywords: Children; equivalency; normal hearing; quick speech-in-noise test; reliability; signal to noise ratio loss
{"title":"The Reliability and Equivalency of the Persian Version of Quick Speech-in-Noise Test in 7-12-Year-Old","authors":"Atefeh Abolhasani Zeraatkar, Farzaneh Fatahi, S. Farahani, S. Jalaie","doi":"10.18502/avr.v31i2.9115","DOIUrl":"https://doi.org/10.18502/avr.v31i2.9115","url":null,"abstract":"Background and Aim: In a noisy environment, children struggle more than adults to understand speech. Various tests at different levels of cognition are available to evaluate children’s speech perception abilities in a noisy environment. The present study aimed at determining the reliability and equivalency of the Persian version of the quick speech-in-noise (P-Q-SIN) test in 7-12 years old school-aged children. \u0000Methods: A total of 120 (60 girls) students with normal hearing were chosen from primary schools in district 2 of Kerman City, Iran. They were in five age groups ranging from 7 to 12 years (24 children per age group). Pure tone audiometry test was performed on the samples, then nine lists of P-Q-SIN of previous studies (Khalili et al. and Shayanmehr et al.) were administered on these participants. To obtain the test-retest reliability, three weeks later, the re-test was performed. \u0000Results: In the test-retest reliability, lists 1 and 4 of Khalili et al. and list 2 of Shayanmehr et al. were highly correlated (p<0.05). There were no significant differences between the scores of girls and boys (p>0.05). The participant’s performance improves as the age increases. \u0000Conclusion: None of the lists of Shayanmehr et al. was reliable and equivalent. List 1 and 4 of Khalili et al. were reliable and equivalent; therefore, they can be used in clinical application for children in the age range of 7 to 12 years by considering the norm of signal-to-noise ratio loss. \u0000Keywords: Children; equivalency; normal hearing; quick speech-in-noise test; reliability; signal to noise ratio loss","PeriodicalId":34089,"journal":{"name":"Auditory and Vestibular Research","volume":" 8","pages":""},"PeriodicalIF":0.5,"publicationDate":"2022-04-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41253146","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}
M. Emadi, M. Akbari, A. Moossavi, S. Jalaie, Reyhane Toufan
Background and Aim: The deficit in cognitive functions and central executive function is one of the popular hypotheses on the underlying cause of tinnitus. These factors are not only the complications of tinnitus but are also involved in the generation of it. In this study, bifrontal transcranial Direct Current Stimulation (tDCS) and conflict processing will be used in the form of auditory Stroop training to improve cognitive performance and inhibition control for tinnitus management. Methods: This study will be carried out on 34 chronic tinnitus patients. The initial evaluations include the tinnitus psychoacoustic evaluations, determination of the tinnitus handicap through tinnitus handicap inventory, and examining the annoyance and loudness of tinnitus through the visual analog scale after which the participants will be investigated in two groups. The first group will receive sessions of tDCS followed by six sessions of conflict processing training. The second group will first receive tDCS in the form of sham, to be followed by six sessions of auditory Stroop. The evaluations will be repeated after each intervention. Discussion: Studies have shown that successive sessions of conflict processing training can enhance cognitive plasticity and inhibition function. As conflict processing training has not been addressed as rehabilitation training in the people suffering from tinnitus, these processes will be designed in four tasks as rehabilitation exercises in Farsi language and applied along with tDCS to the people with chronic tinnitus to decrease and control tinnitus by improving cognitive and inhibition control. Trial registration: Iranian Registry of Clinical Trials (IRCT20120215009014N366) on Sep 17th, 2020. Keywords: Tinnitus; conflict processing; Stroop training; inhibition
{"title":"Impact of Combined Bifrontal Transcranial Direct- Current Stimulation and Conflict Processing Training on Tinnitus: a Protocol for Single-Blind Randomized Controlled Trial","authors":"M. Emadi, M. Akbari, A. Moossavi, S. Jalaie, Reyhane Toufan","doi":"10.18502/avr.v31i2.9120","DOIUrl":"https://doi.org/10.18502/avr.v31i2.9120","url":null,"abstract":"Background and Aim: The deficit in cognitive functions and central executive function is one of the popular hypotheses on the underlying cause of tinnitus. These factors are not only the complications of tinnitus but are also involved in the generation of it. In this study, bifrontal transcranial Direct Current Stimulation (tDCS) and conflict processing will be used in the form of auditory Stroop training to improve cognitive performance and inhibition control for tinnitus management. \u0000Methods: This study will be carried out on 34 chronic tinnitus patients. The initial evaluations include the tinnitus psychoacoustic evaluations, determination of the tinnitus handicap through tinnitus handicap inventory, and examining the annoyance and loudness of tinnitus through the visual analog scale after which the participants will be investigated in two groups. The first group will receive sessions of tDCS followed by six sessions of conflict processing training. The second group will first receive tDCS in the form of sham, to be followed by six sessions of auditory Stroop. The evaluations will be repeated after each intervention. \u0000Discussion: Studies have shown that successive sessions of conflict processing training can enhance cognitive plasticity and inhibition function. As conflict processing training has not been addressed as rehabilitation training in the people suffering from tinnitus, these processes will be designed in four tasks as rehabilitation exercises in Farsi language and applied along with tDCS to the people with chronic tinnitus to decrease and control tinnitus by improving cognitive and inhibition control. \u0000Trial registration: Iranian Registry of Clinical Trials (IRCT20120215009014N366) on Sep 17th, 2020. \u0000Keywords: Tinnitus; conflict processing; Stroop training; inhibition","PeriodicalId":34089,"journal":{"name":"Auditory and Vestibular Research","volume":" ","pages":""},"PeriodicalIF":0.5,"publicationDate":"2022-04-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43247492","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}
S. M. Taghavi, Ahmad Geshani, N. Rouhbakhsh, A. Pourbakht, H. Seraji
Background and Aim: Caffeine intake enhances concentration through affecting brain functions. It also improves attention to the signal which is believed to be associated with increased noise tolerance and improved speech perception. This study aimed to evaluate the long-term effects of caffeine intake on simultaneous speech and sound perception in people with normal hearing. Methods: This double-blind study was conducted on 90 people aged 18-34 years (45 males and 45 females), randomly assigned to two intervention groups (receiving 3 and 5 mg/kg caffeine) and a control group (receiving placebo). The acceptable noise level (ANL) test was conducted before and five hours after intervention. Results: Comparison of ANL scores before and after intervention showed a significant difference in the 3 mg/kg caffeine group (p=0.002), but not in the placebo (p=0.497) and 5 mg/kg caffeine (p=0.146) groups. Between-group analysis showed a significant difference between the placebo and 3 mg/kg caffeine groups in the ANL five hours after (p=0.005), while the difference was not significant between the placebo and the 5 mg/kg caffeine groups (p=0.139). Moreover, there was no significant difference in the ANL between the 3 and 5 mg/ kg caffeine groups (p=0.148). Conclusion: Caffeine intake affects noise tolerance, depending on the dose of caffeine. The ANL and speech tolerance improve five hours after consuming 3 mg/kg of caffeine. Keywords: Caffeine; noise perception; normal hearing; acceptable noise level test
{"title":"Long-Term Effect of Caffeine Intake on Speech and Sound Perception in People with Normal Hearing","authors":"S. M. Taghavi, Ahmad Geshani, N. Rouhbakhsh, A. Pourbakht, H. Seraji","doi":"10.18502/avr.v31i2.9118","DOIUrl":"https://doi.org/10.18502/avr.v31i2.9118","url":null,"abstract":"Background and Aim: Caffeine intake enhances concentration through affecting brain functions. It also improves attention to the signal which is believed to be associated with increased noise tolerance and improved speech perception. This study aimed to evaluate the long-term effects of caffeine intake on simultaneous speech and sound perception in people with normal hearing. \u0000Methods: This double-blind study was conducted on 90 people aged 18-34 years (45 males and 45 females), randomly assigned to two intervention groups (receiving 3 and 5 mg/kg caffeine) and a control group (receiving placebo). The acceptable noise level (ANL) test was conducted before and five hours after intervention. \u0000Results: Comparison of ANL scores before and after intervention showed a significant difference in the 3 mg/kg caffeine group (p=0.002), but not in the placebo (p=0.497) and 5 mg/kg caffeine (p=0.146) groups. Between-group analysis showed a significant difference between the placebo and 3 mg/kg caffeine groups in the ANL five hours after (p=0.005), while the difference was not significant between the placebo and the 5 mg/kg caffeine groups (p=0.139). Moreover, there was no significant difference in the ANL between the 3 and 5 mg/ kg caffeine groups (p=0.148). \u0000Conclusion: Caffeine intake affects noise tolerance, depending on the dose of caffeine. The ANL and speech tolerance improve five hours after consuming 3 mg/kg of caffeine. \u0000Keywords: Caffeine; noise perception; normal hearing; acceptable noise level test","PeriodicalId":34089,"journal":{"name":"Auditory and Vestibular Research","volume":" ","pages":""},"PeriodicalIF":0.5,"publicationDate":"2022-04-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49004519","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}
Background and Aim: Adolescents with hearing loss face many communication problems and challenges due to their hearing impairment. This study aimed to investigate the effect of psychodrama on communication skills of adolescents with hearing loss. Methods: This is a quasi-experimental study with a pretest/posttest design using a control group. The study population consists of all adolescents with hearing loss aged 12–15 years studying at Naghme School for the Deaf in Yazd, Iran. A total of 24 adolescents were selected using a purposive sampling technique and were randomly assigned into groups of control (n=12) and intervention (n=12). The intervention group received psychodrama at nine sessions of 90 minutes, while the control group received no treatment. The Queendom Communication Skills Test (QCST) was used to collect data. Data were analyzed using descriptive and inferential statistics. Results: Psychodrama can improve communication skills of adolescents with hearing loss, which is verbal communication. Conclusion: The mean and standard deviation of the pretest QCST score was 78.75±9.4 for the intervention group. After the treatment, the QCST scores was 105.08±6.28 for the intervention group. The results of ANCOVA showed an improvement in Queendom Communication Skills Test scores of adolescents after intervention (p<0.001). Keywords: Hearing loss; communication skills; psychodrama
背景与目的:听力损失青少年由于听力障碍而面临许多沟通问题和挑战。本研究旨在探讨心理剧对失聪青少年沟通技巧的影响。方法:本研究为准实验研究，采用前测/后测设计，采用对照组。研究人群包括在伊朗亚兹德Naghme聋人学校学习的所有12-15岁的听力损失青少年。采用有目的抽样方法，选取24名青少年，随机分为对照组(n=12)和干预组(n=12)。干预组接受九次心理剧治疗，每次90分钟，而对照组不接受任何治疗。使用女王沟通技巧测试(QCST)收集数据。数据分析采用描述性和推断性统计。结果:心理剧能提高青少年听力损失患者的沟通能力，主要表现在言语沟通方面。结论:干预组前测QCST评分的均值和标准差为78.75±9.4。干预组治疗后QCST评分为105.08±6.28分。ANCOVA结果显示，干预后青少年的queen Communication Skills Test成绩有改善(p<0.001)。关键词:听力损失;沟通技巧;心理剧
{"title":"Effect of Psychodrama on Communication Skills of Adolescents with Hearing Loss","authors":"Ali Nemati, F. Demehri, Mohsen Saeidmanesh","doi":"10.18502/avr.v31i2.9113","DOIUrl":"https://doi.org/10.18502/avr.v31i2.9113","url":null,"abstract":"Background and Aim: Adolescents with hearing loss face many communication problems and challenges due to their hearing impairment. This study aimed to investigate the effect of psychodrama on communication skills of adolescents with hearing loss. \u0000Methods: This is a quasi-experimental study with a pretest/posttest design using a control group. The study population consists of all adolescents with hearing loss aged 12–15 years studying at Naghme School for the Deaf in Yazd, Iran. A total of 24 adolescents were selected using a purposive sampling technique and were randomly assigned into groups of control (n=12) and intervention (n=12). The intervention group received psychodrama at nine sessions of 90 minutes, while the control group received no treatment. The Queendom Communication Skills Test (QCST) was used to collect data. Data were analyzed using descriptive and inferential statistics. \u0000Results: Psychodrama can improve communication skills of adolescents with hearing loss, which is verbal communication. \u0000Conclusion: The mean and standard deviation of the pretest QCST score was 78.75±9.4 for the intervention group. After the treatment, the QCST scores was 105.08±6.28 for the intervention group. The results of ANCOVA showed an improvement in Queendom Communication Skills Test scores of adolescents after intervention (p<0.001). \u0000Keywords: Hearing loss; communication skills; psychodrama","PeriodicalId":34089,"journal":{"name":"Auditory and Vestibular Research","volume":" ","pages":""},"PeriodicalIF":0.5,"publicationDate":"2022-04-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43573873","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}
Background and Aim: Background noise as a serious challenge mainly affects the speech perception in people with hearing loss. One of the methods used to control noise is digital noise reduction (DNR) technique. The present study aimed to investigate the effect of DNR program (activated and deactivated) on the frequency gain of basic and advanced behind-the-ear (BTE) Oticon hearing aids, using different DNR strategies to reduce background noise. Methods: Two behind-the-ear Oticon hearing aids (Opn1 S105 and GetP) were used in this study. The Affinity 2.0 test box was first used to measure their DNR (off/on) gains using the national acoustic laboratories-non linear2 (NAL-NL2) and desired sensation level multi-stage [input/output] (DSLm[I/O]) formulas at sound pressure levels of 45, 65 and 85 dB SPL at a frequency range of 250-8000 Hz for three hearing loss (HL) patterns using the international speech test signal and broad band noise. Results: There was a significant difference in DNR performance between the Opn1 S105 and GetP models for all three HL patterns at 45 and 65 dB SPL and most frequencies. Conclusion: The DNR performance of advanced and basic hearing aids is different for different HLs at 45 and 65 dB SPL and most frequencies. The performance of advanced hearing aids is significant using the DSLm[I/O] formula at most frequencies. Keywords: Digital noise reduction; international speech test signal; frequency response; broad band noise
背景与目的:背景噪声作为一种严重的挑战，主要影响听力损失人群的语言感知。数字降噪(DNR)技术是控制噪声的一种方法。本研究旨在探讨DNR程序(激活和停用)对基本和高级耳后助听器(BTE)频率增益的影响，采用不同的DNR策略来降低背景噪声。方法:使用两种耳后助听器Opn1 S105和GetP。首先使用Affinity 2.0测试箱，使用国家声学实验室-非线性(NAL-NL2)和期望感觉级多级[输入/输出](DSLm[I/O])公式，在45、65和85 dB SPL的声压级下，使用国际语音测试信号和宽带噪声，测量三种听力损失(HL)模式的DNR(关/开)增益。频率范围为250-8000 Hz。结果:Opn1 S105和GetP模型在45和65 dB SPL和大多数频率下对所有三种HL模式的DNR性能都有显著差异。结论:高级助听器和基础助听器在45和65 dB声压级及大多数频率的不同声压级下的DNR性能不同。在大多数频率下使用DSLm[I/O]公式，高级助听器的性能是显著的。关键词:数字降噪;国际语音测试信号;频率响应;宽带噪声
{"title":"Comparing the Effect of Digital Noise Reduction Technique on Frequency Gain of Behind-the-Ear Digital Hearing Aids","authors":"M. Shiroei, N. Rahbar, S. Sameni","doi":"10.18502/avr.v31i2.9117","DOIUrl":"https://doi.org/10.18502/avr.v31i2.9117","url":null,"abstract":"Background and Aim: Background noise as a serious challenge mainly affects the speech perception in people with hearing loss. One of the methods used to control noise is digital noise reduction (DNR) technique. The present study aimed to investigate the effect of DNR program (activated and deactivated) on the frequency gain of basic and advanced behind-the-ear (BTE) Oticon hearing aids, using different DNR strategies to reduce background noise. \u0000Methods: Two behind-the-ear Oticon hearing aids (Opn1 S105 and GetP) were used in this study. The Affinity 2.0 test box was first used to measure their DNR (off/on) gains using the national acoustic laboratories-non linear2 (NAL-NL2) and desired sensation level multi-stage [input/output] (DSLm[I/O]) formulas at sound pressure levels of 45, 65 and 85 dB SPL at a frequency range of 250-8000 Hz for three hearing loss (HL) patterns using the international speech test signal and broad band noise. \u0000Results: There was a significant difference in DNR performance between the Opn1 S105 and GetP models for all three HL patterns at 45 and 65 dB SPL and most frequencies. \u0000Conclusion: The DNR performance of advanced and basic hearing aids is different for different HLs at 45 and 65 dB SPL and most frequencies. The performance of advanced hearing aids is significant using the DSLm[I/O] formula at most frequencies. \u0000Keywords: Digital noise reduction; international speech test signal; frequency response; broad band noise","PeriodicalId":34089,"journal":{"name":"Auditory and Vestibular Research","volume":" ","pages":""},"PeriodicalIF":0.5,"publicationDate":"2022-04-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43985817","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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