구어산출 메커니즘 협응을 이용한 말더듬 치료 전·후 전두엽 피질 영역의 활성화 양상 비교

안종복(Jong Bok Ahn) 한국언어치료학회 2017 言語治療硏究 Vol.26 No.2

Purpose: Current studies have looked at brain activation patterns of subjects with stuttering using functional infrared imaging (fNIR) as a new brain imaging instrument. The aim of this study was to recognize the fluency improvement of pre- and post-treatment using speech production mechanism coordination and how to alter the activation pattern of the frontal lobe cortex using fNIR (functional near-infrared spectroscopy). Methods: This study used a pre- and post-treatment on one male high school senior and one male high school junior. In other words, comparing fluency improvement aspects by using the pre- and post-treatment in spoken language, and simultaneously comparing the frontal lobe cortex activation using fNIR. To recognize fluency improvement through stuttering frequency, speech rates, changing of stuttering, and oxy and deoxy hemoglobin measurements in the frontal lobe cortex were taken. Results: First, in terms of fluency improvement, after using the speech production mechanism coordination in this treatment, both subjects decreased stuttering frequency, increased speech rates, and the main form of stuttering appeared as a whole repetition of words. Secondly, in terms of aspects of frontal lobe cortex activation, after using the speech production mechanism coordination treatment, subjects increased oxy and deoxy hemoglobin measurements. Conclusions: Using the speech production mechanism coordination treatment is not only effective in improving fluency, but also changing the activation pattern of the frontal lobe. These changes were verified objectively through fNIR.

통합교육 환경의 말더듬 학생에 대한 초등학교 교사의 인식 연구

안종복 ( Jong Bok Ahn ) 한국특수아동학회 2013 특수아동교육연구 Vol.15 No.1

구어산출 메커니즘 협응을 이용한 소그룹 활동 프로그램이 학령기 말더듬 아동의 유창성 전이에 미치는 효과

안종복(Jong Bok Ahn) 한국언어치료학회 2012 言語治療硏究 Vol.21 No.2

This study was intended to apply a small group activity program to three school-aged children with stuttering who have established their fluency in a clinic setting after going through a fixing program utilizing speech production mechanism coordination, with a view to understanding the effects of transfer to a school setting.The three male subjects consisting of two elementary school fourth graders and one elementary school second grader participated in the study. The therapeutic program was applied to the children 20 times and the effects of the program were evaluated before, during, and after the therapy. The following are the results of the study. First, a small group activity program using speech production mechanism coordination was applied to the three subjects. It was found that their stuttering frequency was reduced during classroom activities or reading and presentation. Second, it was also found that the program increased the speech rates of the children during their classroom activities. Third, it was furthermore found that the program changed their stuttering type during their classroom activities. Comprehensively considering the above results, it may be concluded that such a small group activity program using speech production mechanism coordination had an effect on the fluency transfer of the participants of this study.

압전소자를 이용한 유량센서 신호처리기술에 관한 연구

안종복(Jong-Bok Ahn) 산업기술교육훈련학회 2011 산업기술연구논문지 (JITR) Vol.16 No.3

The flow meter detects the vortex made by the bluff body which is inside of the pipe that has flowing fluids and calculate the velocity of the fluid. The sensor was manufactured using sensor body and piezo ceramics as the result of the creative design in engineering. The preexistence was analyzed and considered manufacture process and experiment. The sensor body was made after modifying sensor housing and transmitter. Using an elastic tape, copper foil and electric wire, first experiment was conducted. After holding with a vise, impulse was given to the transmitter and signal was captured. Scale is the 100㎳/dev for horizontal direction, 100㎷/dev for vertical direction. And the signal of the preexistence and proto-type was similar with its amplitude and period. Also, through frequency analysis, piezo ceramics’ thickness was selected and it can reduce the cost and error from development step. The experiments include impulse and periodic impulse test.

우반구 손상인의 우리말 속담 표현 특성

안종복(Jong Bok Ahn) 한국언어치료학회 2011 言語治療硏究 Vol.20 No.1

This research investigates the ability of individuals with right hemisphere damage to express Korean proverbs, which are widely used as semantic and pragmatic expressions of language. Investigations were made into if subjects could express Korean proverbs appropriately based on the syntax and meaning of the proverbs and not on the dichotomous division of right versus wrong. After showing 20 proverbs and related pictures to 20 people with right hemisphere damage, whose average age was 54.8 years and who were treated as inpatients or outpatients in hospitals in Busan City and South Gyeongsang Province, and to 20 healthy people whose average age was 51.1 years and giving both of them relevant explanations, they were asked to recall corresponding proverbs. The results suggested that there was a significant difference in the scores of individuals with right hemisphere damage and healthy people to express Korean proverbs; that there was a significant difference in the scores of the two groups to express the syntax of Korean proverbs; that the abnormal people could express two or three syntactic phrases of proverbs that they already understood; that there was a significant difference in the scores of the two groups to express the meanings of Korean proverbs; and that the individuals with right hemisphere damage could express 60% or 70% of the meanings of the proverbs they already understood. It can be concluded that people with right hemisphere damage have a poorer ability to express Korean proverbs than healthy people but still they can express, to some extent, the syntax and meanings of the proverbs they understand.

인공 신경망에 의한 GIS 변전소의 고장점 표정

안종복(Jong-Bok Ahn),박철원(Chul-Won Park) 한국조명·전기설비학회 2018 조명·전기설비학회논문지 Vol.32 No.6

This paper deals with fault location of GIS substation using artificial neural network. First, the configuration analysis of the target GIS substation and the operation status of the circuit breaker and the IED are examined. Using Weka software, we construct and learn an artificial neural network to determine the fault location of GIS substation, and check the result of fault location. The results of this study can be used for fault restoration and substation reconstruction in future.

컴솔 멀티피직스를 이용한 양극형 1회선 HVDC의 전계 해석

안종복(Jong-Bok Ahn),박철원(Chul-Won Park) 한국조명·전기설비학회 2018 조명·전기설비학회논문지 Vol.32 No.9

Recently, there has been an increasing interest in HVDC(High Voltage Direct Current) transmission as a core technology required for a Super grid. Compared with HVAC(High Voltage Alternating Current) transmission, HVDC transmission has no loss due to skin effect and reactance components, so long-distance power transmission is possible, and asynchronous power system can be interconnected. Also, in case of a DC electric field, there is no induction phenomenon. However, the human body may cause irritation such as electrostatic discharge and discomfort, therefore electric field analysis through simulation is absolutely necessary. In this paper, electric field simulation was performed using COMSOL Multiphysics, a multi-physics analysis program, for a Bipolar single line DC ±400kV, DC ±500kV, DC ±800kV model. In order to verify the validity of the simulation, comparative analysis with the related literature was conducted.

정상적인 쉼(pause)의 길이와 빈도에 대한 규준 확립을 위한 예비 연구

안종복(Jong-Bok Ahn),남현욱(Hyun-Wook Nam),신명선(Myung-Sun Shin),권도하(Do-Ha Kwon) 한국언어치료학회 2005 言語治療硏究 Vol.14 No.3

A goal of this study is to investigate length and frequency of normal pauses in fluent speech so that the results of this study can be used in analyzing the speech of people having fluency disorders. In this study, 24 adults listened to two speakers' fluent speech and made judgements of their speech regarding length and frequency of pauses.The results of this study showed that the means of pause found in two speakers' speech sample was judged to be .94 sec and frequency was judged to be 22.94 times by adult group.

구어산출 메커니즘 협응 프로그램을 통한 말더듬 치료 사례 연구

안종복(Jong Bok Ahn) 한국언어치료학회 2010 言語治療硏究 Vol.19 No.3

This study aimed to apply a speech production mechanism coordination program to two stuttering schoolboys, with a view to knowing the effects of the program on their stuttering frequency, speech rates, and stuttering types. Both of the children are fourth graders in elementary school and they have no problem with their articulation, intelligence, voice, and audition. Their teacher recognizes that their school records are excellent. The following are the findings of this study. First, the speech production mechanism coordination program reduced the stuttering frequency of the subjects. Second, the speech production mechanism coordination program increased the speech rates of the subjects. Finally, the speech production mechanism coordination program changed the stuttering types of the subjects. Being cured, both of the children have turned into a slightly stuttering type. Considering all of the above results, it may be concluded that a speech production mechanism coordination program is effective to cure stuttering of school children.

학령기 이전 말더듬 아동에 대한 유치원 교사의 인식 연구

안종복(Jong Bok Ahn) 한국언어치료학회 2013 言語治療硏究 Vol.22 No.1

This study was intended to determine whether there are significant differences in kindergarten teachers’ understanding and knowledge of preschool-age children who stutter depending on individual variables (i.e., age, teaching experience, presence of special education training, and assigned class). With this intention, a questionnaire was conducted on 143 kindergarten teachers responsible for classes composed of 5- to 7-year-old children. The questionnaire was based on the Teacher Attitudes Toward Stuttering Inventory (Crowe & Waltonm, 1981) and a study by Ahn Jong Bok (2013, in press), and was modified twice and supplemented so that it could be adapted for the objectives of this study. The results of this study are summarized below. First, it was found that there was no statistically significant difference in all four subfactors between a group of teachers aged <30 years and the other group of teachers in their thirties or older, in terms of age. Second, there was a statistically significant difference in their understanding and knowledge of the roles of teachers between a group of kindergarten teachers with less than five years of teaching experience and the other group of those with at least five years of teaching experience, in terms of the years of teaching experience. Third, a statistically significant difference was seen in their understanding and knowledge of stuttering nature and supportive systems between a group of kindergarten teachers who have received special education training and another group of those who have not received such training. Finally, a statistically significant difference was shown in teachers' understanding and knowledge of stuttering nature, stuttering children, and the roles of teachers among a group of 5-year class teachers, a group of 6-year class teachers, and a group of 7-year class teachers, as grouped depending on assigned class. Overall, based upon the results mentioned above, it is concluded that kindergarten teachers’ understanding and knowledge of stuttering children may depend on their own individual variables, however they agree among themselves that supportive systems for students who stutter are necessary.