Evaluation of Vocal Fold Motion During Blocks in Adults Who Stutter
|概要||Background: Stuttering is a speech disorder; the primary symptom in adults who stutter (AWS) is blocks, which halt both speech and breathing. This study aimed to evaluate vocal fold motion during bloc...ks in AWS, in order to better understand this condition.
Methods: We used data obtained through flexible fiberoptic endoscopy and measurements of airflow and voice obtained from speech phonogram waveforms for 58 blocks in 12 AWS who were asked to read a set text for measurements. We compared the number of blocks with glottal closure and glottal opening during stuttering.
Results: In most AWS, blocks were accompanied by both glottal closure and glottal opening. The proportions of blocks with glottal closure and glottal opening were 46.6% and 53.4%, respectively. Thus, vocal fold positions during stuttering blocks varied among individuals.
Conclusion: Our study shows that stuttering with cessation of voice can occur both when vocal fold is open and when it is closed.続きを見る