{"title":"Evaluation of Difference in Performance of Young Adults in Dichotic Digit Test in Tamil and Dichotic Consonant Vowel Test","authors":"Ramya Sudersonam, Ramya Vaidyanath","doi":"10.18502/avr.v32i2.12184","DOIUrl":null,"url":null,"abstract":"Background and Aim: Dichotic listening has been defined as the simultaneous stimulation of both ears and has been used to evaluate a listener’s binaural integration/separation ability. Dichotic tests are available in various languages and use varied stimuli. The study aimed to evaluate the differential performance of Tamil-speaking young adults in two tests of dichotic perception namely Dichotic Consonant Vowel (DCV) test and Dichotic Digit Test in Tamil (DDT T). \nMethods: Sixty adults with normal hearing aged 18 to 35 years were the participants of the study. All the young adults were native speakers of the Tamil language without significant auditory history. DCV and DDT-T were administered in randomized order at 50 dB SL (re: SRT) in free recall condition. The participants were instructed to respond orally and the responses were noted. \nResults: Better performance was observed in dichotic digit compared to DCV test for all participants. This was attributed to the higher number of cues available in DDT-T. Further, error analyses of participants’ responses revealed that voicing errors were higher with the highest errors in the identification of unvoiced consonant /ta/ in both ears. The reason for this could be the lack of contextual cues in DCV test for Tamil-speaking individuals to interpret the voicing feature of a consonant. \nConclusion: It can be concluded that DDT-T was more useful in assessing binaural integration ability of native Tamil speakers compared to DCV. It is recommended to be used in the behavioral test battery for evaluating auditory processing disorder in native Tamil speakers. \nKeywords: Dichotic digit; dichotic consonant vowel; free recall","PeriodicalId":34089,"journal":{"name":"Auditory and Vestibular Research","volume":null,"pages":null},"PeriodicalIF":0.4000,"publicationDate":"2023-03-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"1","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Auditory and Vestibular Research","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.18502/avr.v32i2.12184","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q4","JCRName":"AUDIOLOGY & SPEECH-LANGUAGE PATHOLOGY","Score":null,"Total":0}
引用次数: 1
Abstract
Background and Aim: Dichotic listening has been defined as the simultaneous stimulation of both ears and has been used to evaluate a listener’s binaural integration/separation ability. Dichotic tests are available in various languages and use varied stimuli. The study aimed to evaluate the differential performance of Tamil-speaking young adults in two tests of dichotic perception namely Dichotic Consonant Vowel (DCV) test and Dichotic Digit Test in Tamil (DDT T).
Methods: Sixty adults with normal hearing aged 18 to 35 years were the participants of the study. All the young adults were native speakers of the Tamil language without significant auditory history. DCV and DDT-T were administered in randomized order at 50 dB SL (re: SRT) in free recall condition. The participants were instructed to respond orally and the responses were noted.
Results: Better performance was observed in dichotic digit compared to DCV test for all participants. This was attributed to the higher number of cues available in DDT-T. Further, error analyses of participants’ responses revealed that voicing errors were higher with the highest errors in the identification of unvoiced consonant /ta/ in both ears. The reason for this could be the lack of contextual cues in DCV test for Tamil-speaking individuals to interpret the voicing feature of a consonant.
Conclusion: It can be concluded that DDT-T was more useful in assessing binaural integration ability of native Tamil speakers compared to DCV. It is recommended to be used in the behavioral test battery for evaluating auditory processing disorder in native Tamil speakers.
Keywords: Dichotic digit; dichotic consonant vowel; free recall
背景和目的:双耳听被定义为同时刺激两只耳朵,并被用于评估听众的双耳整合/分离能力。二分法测试有多种语言,使用不同的刺激。本研究旨在评估讲泰米尔语的年轻人在两项二分感知测试中的差异表现,即二分辅音元音(DCV)测试和泰米尔语二分数字测试(DDT T)。方法:60名18至35岁听力正常的成年人作为研究对象。所有的年轻人都以泰米尔语为母语,没有明显的听觉病史。DCV和DDT-T在自由回忆条件下以50 dB SL(re:SRT)的随机顺序给药。参与者被要求口头回答,并注意回答。结果:与DCV测试相比,所有参与者的二分位数表现更好。这归因于DDT-T中可用的线索数量更高。此外,对参与者回答的错误分析显示,发音错误更高,在识别双耳的清音辅音/ta/时错误最高。这可能是因为在DCV测试中,讲泰米尔语的人缺乏上下文线索来解释辅音的发音特征。结论:与DCV相比,DDT-T在评估母语为泰米尔语的人的双耳整合能力方面更有用。建议将其用于行为测试组,以评估母语为泰米尔语的人的听觉处理障碍。关键词:二分位数;二分辅音元音;免费召回