• 음성과학
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• 제12권3호
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• pp.7-17
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• 2005

This study aimed at investigating the validity and reliability of the Daegu Diagnostic Aphasia Examination (DDAE). The DDAE has been developed to assess aphasics' receptive and expressive language ability. One hundred and forty eight aphasics (96 males and 52 females) diagnosed as aphasics participated in this study. Reliability coefficients showed that the DDAE was highly consistent and accurate (Cronbach's a = .76$\sim$.82). For its' content-validity, a 5-point scale was administered. Four speech and language pathologists served as evaluator. The receptive language mean score was 4.29, the expressive language mean score was 4.09, and the right-hemisphere function mean score was 4.00. For construct validity, the correlation total scores were calculated. The results showed a significant correlation.

• 대한구순구개열학회지
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• 제11권1호
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• pp.1-12
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• 2008

In cleft palate patient, characteristic of speech disorder is the resonance disorder result from velopharyngeal incompetence. Clinically VPI caused by congenital factor as congenital palatal incompetence, submucosal cleft palate, and caused by acquired factor as CNS damage, tumor, palatal palsy. The clinicians more concerned about the speech disorders after cleft palate surgery rather than language pathologist. The resonance disorder devided for hypernasality, hyponasality and nasal emission, but as a rule, hypernasality is typical phenomenon of the resonance disorder. Traditionally clinicians and language pathologists evaluated four-stage or five-stage of hypernasality by subjective assessment. Although language pathologist is well-trained, results of the language level should be different. In late 1980s, Kay Elemetrics Corp. developed nasometer that objective nasalance identified with well-trained language pathologist and originate from nasometer Tonar I and II were developed by Fletcher. Therefore objective nasalance test was possible, the nasometer used in hospital, collage and speech clinic both and home and abroad. Standardization of the cleft palate speech assessment must be settled without delay because of different character result in different language and different assessment results by dialect in same language. In our study, we provide the data base for the standardization of cleft palate speech assessment which through report of objective assessment method, speech therapy effects and problems result in interdisciplinary teamwork by nasometer use in treatment of cleft palate patient.

• 말소리와 음성과학
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• 제7권1호
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• pp.47-55
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• 2015

This study examined whether speech acceptability was changed under various conditions of prosodic manipulations. Both speech rate and voice loudness reportedly are associated with acceptability and intelligibility. Speech samples by twelve speakers with mild dysarthria were recorded. Speech rate and loudness changes were made by digitally manipulating habitual sentences. 3 different loudness levels (70, 75, & 80dB) and 4 different speech rates (normal, 20% rapidly, 20% slowly, & 40% slowly) were presented to 12 SLPs (speech language pathologists). SLPs evaluated sentence acceptability by 7-point Likert scale. Repeated ANOVA were conducted to determine if the prosodic type of resynthesized cue resulted in a significant change in speech acceptability. A faster speech rate (20% rapidly) rather than habitual and slower rates (20%, 40% slowly) resulted in significant improvement in acceptability ratings (p <.001). An increased vocal loudness (up to 80dB) resulted in significant improvement in acceptability ratings (p <.05). Speech rate and loudness changes in the prosodic properties of speech may contribute to improved acceptability.

• 말소리와 음성과학
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• 제3권4호
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• pp.117-124
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• 2011

This study investigated the effects of the types of noise and signal to noise ratios (SNRs) on speech intelligibility of an adult with dysartrhia. Speech intelligibility was judged by 48 naive listeners using a word transcription task. Repeated measures design was used with the types of noise (multi-talker babble/environmental noise) and SNRs (0, +10 dB, +20 dB) as within-subject factors. The dependent measure was the percentage of correctly transcribed words. Results revealed that two main effects were statistically significant. Listeners performed significantly worse in the multi-talker babble condition than the environmental noise condition, and they performed significantly better at higher levels of SNRs. The current results suggested that the multi-talker babble and lower level of SNRs decreased the speech intelligibility of adults with dysarthria, and speech-language pathologists should consider environmental factors such as the types of noise and SNRs in evaluating speech intelligibility of adults with dysarthria.

• 대한후두음성언어의학회지
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• 제27권1호
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• pp.11-13
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• 2016

Dysphagia incidence can be up to 90% of patients after CVA disease and most of the patients demonstrate speech problems as well as dysphagia. The term of swallowing includes the entire process of deglutition from the placement of food in the mouth until the food enters to the esophagus through the oral and pharyngeal cavities. Swallowing functions share common anatomic structures and characteristics of physiology with speech in many aspects. Therefore, speech-language pathologists can help people with swallowing disorders. Herein the approaches and rationales for improving speech and swallowing functions in patients with stroke need to be discussed depending on the lesion sites of the brain.

• 말소리와 음성과학
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• 제10권3호
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• pp.41-48
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• 2018

This study examined the acoustic characteristics of Korean alveolar fricatives of normal children. Developing children aged 3 and 7, typically produced 2 types of nonsense syllables containing alveolar fricative /sV/ and /VsV/ sequences where V was any one of three corner vowels (/i, a, and u/). Stimuli containing the speech materials used in a production experiment were presented randomly to 12 speech language pathologists (SLPs) for a perception test. The SLPs responded by selecting one of seven alternative sounds. Acoustic measures such as duration of frication noise, normalized intensity, skewness, and center of gravity were examined. There was significant difference in acoustic measures when comparing vowels. Comparison of syllable structures indicated statistically significant differences in duration of frication noise and normalized intensity. Acoustic parameters could account for the perceptual data. Relating the acoustic and perception data by means of logistic regression suggests that duration of frication noise and normalized intensity are the primary cues to perceiving Korean fricatives.

• 대한후두음성언어의학회지
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• 제28권2호
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• pp.79-83
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• 2017

Neurodegenerative diseases such as Parkinson's disease and amyotrophic lateral sclerosis may induce impairment of speech motor system. This review discusses the characteristics of dysarthria and symptom management for these conditions. Given the progressive nature of the neurodegenerative diseases, speech-language pathologists must be aware of appropriate augmentative and alternative communication equipment at the early stage of the disease course. Patients with neurodegenerative diseases can maintain functional communication with augmentative and alternative communication supports.

• 대한후두음성언어의학회지
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• 제32권3호
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• pp.109-117
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• 2021

The auditory-perceptual evaluation of speech-language pathologists (SLP) in patients with voice disorders is often regarded as a touchstone in the multi-dimensional voice evaluation procedures and provides important information not available in other assessment modalities. Therefore, it is necessary for the SLPs to conduct a comprehensive and in-depth evaluation of not only voice but also the overall speech production mechanism, and they often encounter various difficulties in the evaluation process. In addition, SLPs should strive to avoid bias during the evaluation process and to maintain a wide and constant spectrum of severity for each parameter of voice quality. Lastly, it is very important for the SLPs to perform a team approach by documenting and delivering important information pertaining to auditory-perceptual characteristics in an appropriate and efficient way through close communication with the laryngologists.

• 한국콘텐츠학회논문지
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• 제11권3호
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• pp.327-338
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• 2011

본 연구는 자폐 장애로 진단받은 아동의 주양육자 총 52명을 대상으로 현재 받고 있는 언어치료 교육서비스에 대한 만족도와 욕구를 조사하기 위해 실시되었다. 연구방법은 설문조사 방식을 사용하였고, 설문 내용은 치료 교육 기관의 환경(7문항)과 치료사가 제공하는 프로그램(7문항), 그리고 치료 교육 만족도 및 서비스 욕구(7문항)를 포함한 세 가지 측면으로 구분하여 작성하였다. 연구 결과, 치료 교육 기관의 환경면에서, 치료비 등을 이유로 복지관 이용자의 만족도가 가장 높았으며, 사설 치료실, 종합병원 순으로 낮게 나타났다. 치료사가 제공하는 교육 프로그램 면에서, 실시하는 프로그램의 적절성 및 상담 내용 등을 이유로 종합병원 이용자의 만족도가 가장 높았으며, 사설치료실, 복지관 순으로 낮게 나타났다. 치료 교육 만족도 및 서비스 욕구 면에서, 언어치료 및 전체 치료 교육 서비스에 대한 만족도는 다소 만족하는 수준인 것으로 나타났다. 자녀가 언어치료를 받게 되고 난 후, 좋아진 점으로 일상적인 생활 기술의 향상과 심리적 안정이 높게 나타났으며, 추후 받고 싶은 치료 교육과 관련하여 개별, 집단 언어치료 교육 서비스에 대한 욕구가 매우 높게 나타났다. 이상의 결과를 통해, 치료 교육 기관에서 제공하는 서비스의 문제점을 파악하고, 자폐 아동의 치료 교육 만족도를 높이기 위해 언어치료사 및 관련 영역 전문가들이 노력해야 할 여러 가지 함의를 얻을 수 있었다.

• 말소리와 음성과학
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• 제14권3호
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• pp.87-101
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• 2022

대전·충남지역 20-30대 여성 언어재활사 50명을 대상으로 주관적 음성 피로도 설문과 더불어 하루 4회기를 기준으로 언어치료 전/후 음성 샘플 수집을 하였다. 연구 결과, Korean Vocal Fatigue Index의 음성 피로로 인한 음성 사용회피 항목과 음성 사용으로 인한 신체 피로 항목에서 피로 집단과 피로 없는 집단 간 유의한 차이가 있었다. 두 집단의 음향음성학적 특성과 관련하여, 두 집단 모두 치료 후 저주파 대역 에너지가 상대적으로 낮아지고 고주파 대역 에너지가 상승하는 패턴을 보였다. 이러한 특징이 분산분석 결과, 주 효과로 나타난 low to high-ratio[t1(time.1)>t2(time.2)], slope_ltas(t2>t1), 3rd formant's energy(t1>t2), high energy(t2>t1) 등에 잘 반영되어 있다. 집단 간 차이는 음향변수들 중 치료 전 모음 연장발성 스펙트럼 저주파 대역의 에너지인 low energy에서만 관찰되었고 피로 없는 집단의 값이 더 컸다(no.fatigue>fatigue in t1). 음향변수에서의 이러한 특징과 더불어 치료 세션 후 피로 없는 집단의 연결발화에서의 왜도 증가는 장시간의 목소리 노동으로 인한 성대 과긴장(higher muscle tonus)과 목소리 남용 때문으로 해석할 수 있다. 섭동변수 shimmer_local은 피로 없는 집단이 언어치료 후 낮아졌고(t1>t2), 켑스트럼 변수인 RNR(rhamonics to noise ratio)은 언어치료 후 값이 높아졌다(t2>t1). NHR(noise to harmonic ratio)은 두 집단 모두 치료 후 낮아졌다. NHR의 감소와 shimmer_local의 하강은 치료 세션을 진행하면서 발성 과정이 안정화되었거나 혹은 전문 지식이 있는 언어재활사(특히 피로 없는 집단)들의 효율적 목소리 사용이 기여했다고 결론지을 수 있다. 피로 없는 집단의 경우는 치료 후에 RNR값이 유의하게 커졌으므로 치료 후 오히려 조화음(harmonic) 구조가 더 안정되었다고도 말할 수 있을 것이다.