브로카 실어증 환자의 자음변별과 조음 특성

• 영문명: Characteristics of Consonant Discrimination and Articulation in Patients with Broca’s Aphasia
• 발행기관: 한국청각언어재활학회
• 저자명: 이현진(Hyun Jin Lee) 최성희(Seong Hee Choi) 최철희(Chul-Hee Choi)
• 간행물 정보: 『Audiology and Speech Research』Audiology and Speech Research 제14권 제2호, 108~118쪽, 전체 11쪽
• 주제분류: 사회과학 > 교육학
• 파일형태: PDF
• 발행일자: 2018.04.01

영문 초록

Purpose: Generally, Broca s aphasia, also known as motor aphasia is characterized by non-fluent speech and poor articulation. The current study compared consonant discrimination, phonetic representation and voice onset time (VOT) between patients with Broca s aphasia and normal people to investigate speech motor control and articulatory characteristics in patients with Broca s aphasia. Methods: Twenty patients with Broca s aphasia and age and gender matched twenty normal speakers participated in the present study. Naming task in Korean Western Aphasia Battery-Revised, repetition task, and nonsyllabic phoneme discrimination tasks were used to explore phonetic representation ability and auditory phoneme discrimination in patients with Broca s aphasia. In addition, a total of nine-vowelconsonant- vowel syllable stimuli [3 (phonation type) x 3 (place of articulation)] were used to test VOT. The consonant discrimination and production test were analyzed by manner of articulation (stop, fricative, affricate), place of articulation (bilabial, alveolar, palatal, velar), and phonatory type (lenis, fortis, aspirated). Results: For consonant discrimination, no significant difference between normal and Broca’s aphasia group was found. Significant articulatory breakdown, however, was observed in Broca s aphasia compared to normal control in nonsyllable repetition task as well as naming task in all place and manner of articulation and phonatory type. This study demonstrated significant differences between normal and Broca s aphasia groups in VOT according to phonatory type, indicating significant longer VOT in fortis than that of control whereas no significant difference in VOT regarding place of articulation between two groups. Conclusion: Although consonant discrimination ability was preserved, individuals with Broca s aphasia demonstrated poor speech motor control and articulation performance.

목차

INTRODUCTION

MATERIALS AND METHODS

RESULTS

DISCUSSIONS

REFERENCES

APPENDICES

키워드

브로카 실어증 말 통제조절능력 자음 변별 음소표상 조음 Broca’s aphasia Speech motor control Consonant discrimination Phonetic representation Articulation