언어심리학을 기반으로 한 명칭성 실어증 평가도구 개발

정재범(Jae-bum Jung),편성범(Sung-bom Pyun),손효정(Hyo-jung Sohn),지성우(Sung-woo Gee),조성호(Sung-ho Cho),남기춘(Ki-chun Nam) 한국정보기술학회 2008 한국정보기술학회논문지 Vol.6 No.4

Anomia, word finding difficulty, is one of the most common feature in aphasia. Previous studies support that the process of picture naming consists of three stages, in the order of the object recognition, semantic, and phonological output stages. Anomic patients have many symptoms and it means that anomia can be sub-divided into several symptom groups. Our anomia assessment battery consists of several parts; (1) picture naming set, (2) picture-word matching task, (3) lexical decision task for mental lexicon damage, (4) naming task for phonological lexicon damage, and (5) semantic decision task. Pictures and words were selected on the basis of usage frequency, semantic category, and word length. We administered this anomia evaluation battery to many anomic aphasics and we subdivided patients into several groups. We hope that our anomia evaluation set is useful and helpful for evaluation anomic aphasics.

Characteristics of Acquired Phonological Dyslexia in Korean

Hyesuk Cho(조혜숙),Sung-Bom Pyun(편성범) 한국언어청각임상학회 2015 Communication Sciences and Disorders Vol.20 No.4

본 연구에서는 뇌손상 환자를 대상으로 한국어 후천성 음운성 실독증의 특성을 파악하고 뇌손상 영역과의 관계성을 알아보았다. 방법: 정상인 30명, 뇌손상 환자 6명이 연구에 참가하였다. 읽기의 언어심리학적 모델에 기반하여 단어 읽기의 구성 요소인 철자, 음운, 의미 처리 중 어느 요소에서 수행이 저하되는지를 체계적으로 평가하였다. 또한 단어/비단어 소리내어 읽기를 실시하여 음운성 실독증의 핵심 특성인 비단어 읽기 손상이 나타나는지를 알아보았다. 철자처리는 연구 참가자들이 철자와 단어의 시각적 형태를 인지할 수 있는지 알아보기 위하여 실시되었다. 음운처리과제는 말소리의 분석 및 조작 능력, 의미처리과제는 의미지식이 얼마나 보존되어 있는지를 알아보기 위하여 실시되었다. 결과: 정상집단과 환자집단 간에 철자, 의미처리, 단어/비단어 소리내어 읽기에서 모두 유의미한 집단 간 차이가 있었다. 환자집단은 음운처리 과제는 거의 수행하지 못한 반면 철자와 의미처리는 상대적으로 좋은 결과를 보였다. 환자집단 내에서 단어와 비단어의 읽기 수행이 유의미한 차이를 보여 음운성 실독증의 특성을 확인하였다. 논의 및 결론: 본 연구에서는 페리실비안 영역에 손상이 있는 환자를 대상으로 철자, 음운, 의미 평가과제를 실시한 결과 음운처리능력의 저하, 단어에 비해 손상된 비단어 읽기의 패턴이 관찰되었다. 이는 후천성 음운성 실독증 선행연구와 일치하는 결과로서 한국어 실독증에서도 음운성 실독증의 패턴이 나타나며 이와 실비안열 주변 언어영역과의 관련성을 확인하였다. The purpose of the current study was to identify characteristics of acquired phonological dyslexia in Korean patients with brain damage and relationship between those characteristics and brain lesions. Methods: Thirty normal controls and six brain-damaged patients participated in the study. Assessment tasks of orthographic, phonological, and semantic processing were developed based on the cognitive model of single word reading and were administered to participants to evaluate reading ability. Orthographic processing assessment was performed to evaluate whether participants recognized letters and visual word forms. Phonological tasks assessed the ability to segment and manipulate sounds in words. A semantic task was performed in order to examine if semantic knowledge was preserved. Reading aloud task of words/nonwords was also performed with the intention of identifying characteristics of phonological dyslexia. Results: There was a significant difference in orthographic, semantic, and reading aloud performance between the normal control group and patient group. The patient group showed relatively preserved orthographic and semantic processing although most of them were not able to perform the phonological tasks. Significant differences between word and nonword reading aloud in patients indicated features of phonological dyslexia. Conclusion: Orthographic, phonological, and semantic tasks were administered to participants with perisylvian lesion. Our results showed impaired phonological processing and nonword reading compared to relatively preserved performance on orthographic, semantic tasks and word reading. These results are consistent with previous studies on phonological dyslexia, and characteristics of acquired phonological dyslexia in the Korean language were associated with perisylvian language areas.

한국판 프렌차이 실어증 선별검사 (Korean version of Frenchay Aphasia Screening Test: K-FAST)의 신뢰도와 타당도

하지완(Ji-Wan Ha),편성범(Sung-Bom Pyun),이호영(Ho Young Lee),황유미(Yu-mi Hwang),남기춘(Kichun Nam) 한국언어청각임상학회 2009 Communication Sciences and Disorders Vol.14 No.1

배경 및 목적: 본 연구에서는 뇌손상 환자에서 한국판 프렌차이 실어증 선별검사(Korean version of Frenchay Aphasia Screening Test: K-FAST, 이하 K-FAST)의 신뢰도와 타당도를 검정하였다. 방법: 신뢰도와 타당도 분석을 위하여 50명의 실어증 환자와 42명의 비실어증뇌손상 환자의 자료를 이용하였다. Chronbach’s ɑ를 통해 문항내적일관성 신뢰도를 측정하였고, Kendall’s coefficient of concordance를 산출하여 검사자간 신뢰도 및 재검사 신뢰도를검정하였다. 총 검사와 하위 검사 간 상관관계를 분석하여 구인타당도를 측정하였고, P․K-WAB과의 상관관계를 통하여 공인타당도를 검정하였다. ROC 곡선을 분석하고 정상인 평균의 -1 표준편차 값을 적용한 절단점을 이용하여 민감도와 특이도를 구하였다. 결과: 문항내적일관성 신뢰도(총 검사 .88, 간략형 검사 .81), 검사자간 신뢰도(총 검사 .92, 간략형 검사.94), 재검사 신뢰도(총 검사 .979~ .990, 간략형 검사 .979~ .998)에서 높거나 매우 높은 신뢰도가 입증되었다. 구인타당도(총 검사와 하위 검사 간 .820~ .973, 간략형 검사와 하위 검사간 .737~ .910)와 공인타당도(총 검사와 실어증지수 간 .904, 간략형 검사와 실어증지수 간.910) 검정 결과 우수한 타당도가 입증되었다. ROC 곡선 분석 결과에서는 진단유용성을 입증하지 못 하였지만, 절단점을 적용한 민감도와 특이도 산출 결과 특이도는 낮지만 민감도는높은 검사로 평가되었다(총 검사의 민감도 90.0%, 특이도 31.0%, 간략형 검사의 민감도 88.0%,특이도 28.6%). 논의 및 결론: K-FAST는 신뢰도, 타당도, 민감도가 높은 검사도구라고 할수 있다. 그러나 뇌손상 환자들의 특성은 검사의 특이도에 부정적인 영향을 줄 수 있으므로,실어증 뿐 아니라 기타 인지 의사소통장애 여부를 선별해주는 도구로 K-FAST를 활용할 것을 제안한다. Background & Objectives: Early identification, diagnosis, and treatment of aphasia are important steps in maximizing rehabilitation gains. A routine screening test is an invaluable tool in the identification and appropriate referral of patients with potential communication problems. Nevertheless, there is nostandardized aphasia screening test available in Korea. The purpose of this study was to test the reliability and validity of the Korean version of the Frenchay Aphasia Screening Test (K-FAST). Methods: We used test data from 50 aphasic patients and 42 non-aphasic, brain-damaged patients. An internal consistency and intra-/inter-rater reliabilities of the K-FAST were analyzed by the Cronbach’s ? value and Kendall's coefficient of concordance, respectively. A constructive validity through correlations between the total and subtest scores and a concurrent validity through correlations between the scores of the K-FAST and K-WAB were measured. The diagnostic accuracy of the K-FAST in brain-damaged patients was measured by the area under the ROC curve, while the sensitivity and specificity were evaluated using the cut-off value of the normal data. Results: Results obtained in the present study were as follows: indices of the internal consistency and intra-/inter-rater reliabilities of the K-FAST showed good reliabilities. There were significantly strong correlations between the total and subtest scores of the K-FAST, and between the scores of K-WAB and K-FAST. For detecting aphasia among brain-damaged patients, the sensitivity was high while the specificity was low. Discussion & Conclusion: Our results show that K-FAST could be a reliable and valid tool for screening Korean Aphasics. However, the specificity of the K-FAST appeared to be adversely affected by the characteristics of the brain-damaged patients.

유창성 실어증 환자의 구어와 문어 문장산출 능력 비교

하지완(Ha, Ji-Wan),편성범(Pyun, Sung-Bom),황유미(Hwang, Yu Mi),이호영(Yi, Hoyoung),심현섭(Sim, Hyun Sub) 한국음성학회 2013 말소리와 음성과학 Vol.5 No.3

Traditionally it has been assumed that written abilities are completely dependent on phonology. Therefore spoken and written language skills in aphasic patients have been known to exhibit similar types of impairment. However, a number of latest studies have reported the findings that support the orthographic autonomy hypothesis. The purpose of this study was to examine whether fluent aphasic patients have discrepancy between speaking and writing skills, thereby identifying whether the two skills are realized through independent processes. To this end, this study compared the K-FAST speaking and writing tasks of 30 aphasia patients. In addition, 16 aphasia patients, who were capable of producing sentences not only in speaking but also in writing, were compared in their performances at each phase of the sentence production process. As a result, the subjects exhibited different performances between speaking and writing, along with statistically significant differences between the two language skills at positional and phonological encoding phases of the sentence production process. Therefore, the study"s results suggest that written language is more likely to be produced via independent routes without the mediation of the process of spoken language production, beginning from a certain phase of the sentence production process.

태플릿애플리케이션을 활용한 의미자질중재가 단순언어장애아동의 이름대기와 의미표상에 미치는 효과

유혜진(Hye Jin Ryu),하지완(Ji-Wan Ha),황유미(Yun Mi Hwang),편성범(Sung-Bom Pyun) 한국언어치료학회 2016 한국언어치료학회 학술발표대회 논문집 Vol.2016 No.12

Purpose: ‘LRP (Language Rehabilitation Program)’ is a tablet application to improve linguistic ability of patients with aphasia. In this study, we applied the app to children with Specific Language Impairment (SLI) and examined the effect on naming and explaining definition (semantic representation). Methods: The participants were three 6 year-old children with SLI. Intervention program was semantic feature treatment using LRP app, and it was conducted in total 18 sessions. We evaluated the children"s naming and semantic representation ability on 40 intervention vocabulary and 20 non-intervention vocabulary from 4 categories using a pretest-posttest design. Results: Semantic feature treatment using LRP app had positive influence on naming of intervention, non-intervention vocabulary and semantic representation ability of children with SLI. In addition, children with SLI were able to learn the strategy systemizing various definitions based on semantic feature analysis. The study result suggested that semantic feature treatment using tablet app, LRP can be applied effectively as a solution of major problems of children with SLI.

다차원 구어 단기기억에 따른 전도 실어증 환자의 언어수행력 분석

하지완(Ji-Wan Ha),황유미(Yu Mi Hwang),편성범(Sung-Bom Pyun) 한국인지과학회 2012 인지과학 Vol.23 No.4

시각적 유사성과 음운적 유사성이 한글 단어 재인에 미치는 영향

김동휘(Dung hye Kim),김가영(Kay oung Kim),편성범(Sung bom Pyun),이홍재(Hongjae Lee),남기춘(Kichun Nam) 한국언어청각임상학회 2000 Communication Sciences and Disorders Vol.5 No.1

본 연구는 명칭실어증(anomic aphasia) 환자가 시각적으로 제시된 단어 자극에 대해 어휘 접근하는 동안 어떤 종류의 정보처리가 진행되는가를 알아보기 위해 실시되었다. 실험 1에서는 가짜 동음이의어(pseudo- homophone) 조건, 앞 음절 동일 비단어 조건, 뒤 음절 동일 비단어 조건, 무관련 비단어 조건 등의 점화 유형과 SOA (Stimulus Onset Asynchony)에 따른 점화 효과를 조사하였다. 명칭실어증 환자도 정상인처럼 점화 문자열과 목표 단어간의 형태적 유사성이 촉진적 형태 점화 효과(facilitatory form priming effect)를 일으켰다. 실험 2는 형태 점화 효과의 원인이 시각적 유사성에 의한 것인지 아니면 음운적 유사성에 의한 것인지를 조사하기 위해 실시되었는데, 명칭실어증 환자는 시각적 유사성보다는 음운적 유사성에 의한 형태적 점화 효과를 더 크게 나타냈다. 실험 3에서는 하위 어휘 단위로의 분석이 일어나고 있는 것을 입증하는 형태 점화 효과가 어휘 접근 시에 발생하는가 아니면 어휘 접근 이전 단계에서 발생하는가를 알아보고자 점화 문자열로 비단어 대신에 단어를 사용하였다. 실험 3의 결과는 명칭실어증 환자의 경우에 비단어 형태 점화 조건에서처럼 여전히 촉진적 점화 효과가 나타나서, 관련 없는 어휘를 효과적으로 억제시키지 못하였다. The purpose of the present research was to gain a better under standing of the processes involved in the lexical access for the orthographic stimulus in an anomic aphasic. Experiment 1 was designed to evaluate the priming effect along the pattern of the prime and the stimulus onset asynchrony (SOA). T he Experiment 1 revealed facilitatory form priming effect on the orthographically similar words in both the control subject and the anomic aphasic. Experiment 2 was performed to investigate whether the facilitatory form priming effect was cau sed by the orthographic or the phonological similarity between the prime and target words. Experiment 2 showed that the facilitatory form priming effect s showed no difference between the orthographic and the phonological similarities in the normal control group, but the facilitatory form priming effect s by the phonological prime was stronger than by the orthographic prime in the anomic aphasic. These finding s were quite supportive of the phonological proces sing for lexical acces s in the anomic aphasic. In Experiment 3, we attempted to evaluate whether the form priming effect was activated in the lexical access or in the pre- lexical stage. In the control subject , the inhibitory form priming effect was obtained. But the facilitatory form priming effect was shown in the anomic aphasic. Experiment 3 revealed that the anomic aphasic did not effectively inhibit the activated priming words in the lexical access. T he result s of Experiment s 1, 2, 3 suggest that the anomic aphasic recognize Hangul words via the phonological recoding route in the pre- lexical processing and the anomic aphasic has a problem in inhibiting the competing lexical candidates in the mental lexicon.

Retrieving Semantic Information and Names of Proper and Common Nouns in People with and without Aphasia

신재민(Jae-Min Shin),하지완(Ji-Wan Ha),황유미(Yu Mi Hwang),편성범(Sung-Bom Pyun) 한국언어청각임상학회 2020 Communication Sciences and Disorders Vol.25 No.1

배경 및 목적: 본 연구에서는 좌반구 손상 실어증 환자와 정상 성인들을 대상으로 의미연결 과제와 이름대기 과제에서 고유명사와 보통명사에 따라 수행력에 차이가 있는지를 알아보았다. 방법: 좌반구 손상 실어증 환자와 정상 성인 각 20명을 대상으로, 고유명사 의미연결, 보통명사 의미연결, 고유명사 이름대기, 보통명사 이름대기 과제를 실시하여 정반응 점수를 비교하였고, 실어증 집단에서 각 과제의 수행력 간 상관관계가 어떠한지 분석하였다. 결과: 집단 간 차이 및 과제유형에 따른 차이는 통계적으로 유의하였으나, 명사종류에 따른 차이는 유의하지 않았다. 또한 명사종류와 집단 간 상호작용효과는 통계적으로 유의하지 않았으나, 과제유형과 집단 간, 명사종류와 과제유형 간, 그리고 명사종류, 과제유형과 집단 간 상호작용 효과가 모두 유의하였다. 실어증 집단에서 모든 과제 수행력 간 유의한 상관이 있었고, 그 중 고유명사 의미연결 과제와 보통명사 의미연결 과제의 상관계수가 매우 높은 것으로 나타났다. 논의 및 결론: 실어증 집단에서 의미연결 과제 수행 시 고유명사의 점수가 보통명사보다 유의하게 좋다는 것을 확인하였다. 본 연구는 고유명사의 경우 우반구의 기능, 즉 시각정보의 활성화가 의미처리에 관여할 가능성, 그로 인해 좌반구가 손상된 실어증 환자가 손상되지 않은 우반구를 활용하여 고유명사 의미처리에 도움을 받았을 가능성을 제시하고 있다. Objectives: The aim of this study was to determine whether performance differs between proper nouns and common nouns in semantic and naming tasks between patients with aphasia and normal adults. Methods: 20 patients with aphasia and 20 normal adults performed a proper noun semantic task, common noun semantic task, proper noun naming task, and common noun naming task. Following this, we compared the scores and analyzed the correlation among the four tasks. Results: The differences among the groups and the types of tasks were statistically significant, but not according to the noun types. Also, noun type and group interaction effect were not statistically significant; but task type and group, noun type and task type, and noun type, task type and group interaction effect were significant. In the aphasia group, there was a significant correlation between the performance of all tasks, and the correlation coefficient between the proper noun semantic task and the common noun semantic task was very high. Conclusion: In the aphasia group, we confirmed that the proper noun score was significantly better than the common noun when performing semantic tasks. This study suggests that in the case of proper nouns, the function of the right hemisphere; that is, the activation of visual information, may be involved in semantic processing. As a result, it suggests that aphasia patients with damaged left hemispheres were assisted in the process of proper noun semantics by using the uninjured right hemisphere.

한국어 발달성 난독 아동과 일반 아동의 어휘처리시 관찰되는 뇌 활성화

조혜숙(Hye Suk Cho),배소영(So Yeong Pae),신가영(Ga Young Shin),편성범(Sung Bom Pyun) 한국언어치료학회 2018 言語治療硏究 Vol.27 No.3

The Effects of Working Memory Load on Word Frequency

이창환(Lee, Chang-Hoan),오지향(Oh, Ji-Hyang),편성범(Pyun, Sung-Bom),임희석(Lim, Heui-Seok) 한국산학기술학회 2009 한국산학기술학회논문지 Vol.10 No.3

본 연구는 단어 재인에서 작업 기억의 역할을 규명하기 위하여 진행되었다. 단어 재인에서의 작업 기억 역할 규명을 위하여 단어 빈도와 직업 기억 부담을 조절한 명명 과제 실험을 실시하였다. 실험 결과 단어 빈도는 작업 기억 부담에 영향을 받는 것으로 분석되었다. 작업 기억의 부담은 고빈도 단어 재인에서보다 저빈도 단어 재인에서 더 높은 영향을 미쳤다. 이러한 결과는 작업 기억이 저빈도 단어 재인에서 더 많은 영향을 갖음을 시사하는 것이다. This study was conducted in order to investigate the role of working memory in word recognition. As a preliminary step in tackling this topic, word frequency and working memory load were manipulated in a naming task. The results showed that word frequency is significantly involved with the working memory load. The effects of working memory load were greater in low-frequency word processing than in high-frequency word processing. These results indicat that working memory is involved more in the processing of low-frequency words. The implications for the teaching of children at the early reading acquisition stage are discussed in this paper.