• 대한후두음성언어의학회지
• /
• 제7권1호
• /
• pp.32-38
• /
• 1996

The preservation of the voice-producing mechanism is an important feature in the management of laryngeal cancer by radiotherapy. But, radiation therapy has certain side effects such as mucositis, tissue edema, necrosis and fibrosis which could effect on normal voice production. Several subjective studies that used questionnaires and auditory perceptual judgements of voice have been interpreted to mean that radiation results in a normal or near-normal voice. Objective evidence of the status of vocal function after radiation treatment, however, is still lacking. We analyzed the changes that occur in voice parameters in a group of patients undergoing radiation therapy, in order to determine the effect of radiation on voice quality. In this study acoustic, aerodynamic measures of vocal function were used to determine the characteristics of voice production. We found that voice parameters in early glottic cancer changed meaningfully comparing to normal larynx with or without radiation and radiation therapy has an little effect on normal larynx.

• 한국조리학회지
• /
• 제13권2호
• /
• pp.12-21
• /
• 2007

The purpose of this study was to examine the effect of subjective norms on customers' intention to engage in voice of dissatisfaction responses, the effect of subjective norms on attitude, and the mediating effect of attitude on the relationships between subjective norms and customers' intention to engage in voice of dissatisfaction responses. The simple regression analysis is used in order to estimate the effects of subjective norms on customers' intention to engage in voice of dissatisfaction responses and attitude. The mediated regression analysis is used in order to estimate the mediating role of attitude of the effect of subjective norms on customers' intention to engage in voice of dissatisfaction responses. Results of the study demonstrated that the inclusion of perceived behavioral control did significantly improve the predictability of the voice of dissatisfaction response intentions. Furthermore, the mediating analysis indicated that the influence of subjective norms was mediated by mediator. In the contests of voice behavior, the effect of subjective norms on intention was mediated by attitude.

• 대한후두음성언어의학회지
• /
• 제16권1호
• /
• pp.68-75
• /
• 2005

The treatment of sulcus vocalis and vocal bowing has been commonly used Thyroplasty Type surgery or injection within vocal folds such as Teflon, silicone, collagen. However, and treatment has not been acquired satisfactory treatment effect. This study was conducted to demonstrate voice therapy effect using singer's vocal technique and respiratory training. 4 patients (1 male, 3 females) with sulcus vocalis or bowing, with or without scar were selected for this study and we compared with acoustic, aerodynamic measures and stroboscopy observation before and after voice therapy. The results showed that 1) case 1 (48yr, male) with sulcus vocalis decreased F0 (Fundamental Frequency), increase CQ(Close Quotient) and high degree of satisfaction but not improved voice quality after voice therapy. 2) case 2(19yrs, femal) with mild sulcus vocalis improved as normal voice quality after voice therapy. 3) case 3(38yrs, female) with functional bowing showed abnormalvocal contact before therapy whereas CQ was increased after voice therapy. 4) case 4(27yrs, female) with vocal atrophy and vocal bowing changed normal range of Fo and increased CQ after voice therapy. Even though contact area of both vocal folds was increased and lowered F0 after voice therapy, current outcomes revealed that normal voice quality was not regained. These results might signify that it was difficult that vocal folds couldn't be recovery of symmetry and viscoelastic property of mucosal wave through voice therapy. However, it was difficult for this study to maintain voice therapy so that evaluate effect of voice therapy for long-term. Further study will be needed to long-term follow-up for voice therapy with these patients.

• Educational Technology International
• /
• 제19권1호
• /
• pp.61-91
• /
• 2018

The animated pedagogical agent has been implemented to promote learning outcomes and motivation in multimedia learning. It has been claimed that one of the advantages of using pedagogical agent is persona effect - the personalization or social presence of pedagogical agent can enhance learning engagement and motivation. However, prior research is inconclusive as to whether and how the features of the pedagogical agent have effects on the persona effect. This study investigated whether the similarity between a pedagogical agent and the real instructor in terms of the voice and outlook would improve students' perception of the agent's persona. The study also examined the effect by the size of pedagogical agent on the persona perception. Two experiments were conducted with a total of 115 college students. Experiment 1 indicated a significant main effect of voice on the persona perception. Experiment 2 was conducted to examine whether the size of pedagogical agent would affect the voice effect on the persona perception. The results showed that the instructor-like voice yielded higher persona perception regardless of the pedagogical agent's size. Overall, the study findings indicated that the similarity in voice positively fostered the agent's persona.

• 디지털융복합연구
• /
• 제20권4호
• /
• pp.235-245
• /
• 2022

본 연구는 조직 내에서 구성원들이 느끼는 상사의 언행일치가 구성원들의 발언행동에 미치는 영향을 확인하고, 언행일치와 발언행동 간의 관계에서 상사신뢰가 매개효과가 있는지, 상사의 언행일치를 통한 상사신뢰와 구성원의 발언행동 간에 구성원의 심리적 안전감의 조절효과를 검증하였다. 표본은 서비스 관련 업종으로 보험, 증권, 은행, 컨설팅, 신용카드사의 구성원들을 대상으로 설문조사하여 424부를 분석에 이용하였다. 연구결과 첫째, 상사의 언행일치가 상사신뢰와 구성원의 발언행동에 유의한 정(+)의 영향을 확인하였다. 둘째, 상사신뢰는 상사의 언행일치와 구성원의 발언행동 간의 매개효과가 있음을 확인하였다. 셋째, 구성원들의 심리적 안전감은 상사신뢰와 구성원의 발언행동 간에 조절효과가 있으며, 심리적 안전감이 평균에서 높을 때 언행일치가 상사신뢰를 매개로 발언행동에 미치는 영향에서 심리적 안전감의 조절된 매개효과가 있는 것으로 나타났다.

• 융합정보논문지
• /
• 제10권1호
• /
• pp.99-108
• /
• 2020

본 연구는 고객의 기대에 미치는 못하는 서비스실패상황에서 서비스제공자가 고객에게 보이는 진정성이 고객의 건설적 발언을 증가시키고 파괴적 발언을 감소시키며, 또한 건설적 발언은 관계유지의도를 증가시키지만 파괴적 발언은 관계유지의도를 감소시킨다는 것을 제시하고자 한다. 일반소비자를 대상으로 실패경험을 환기시켜 설문조사를 실시하였고 216부가 최종적 분석에 사용되었다. 탐색적 요인분석, 확인적 요인분석을 이용하였으며 구조방정식 모형을 통해 가설을 검증하였다. 연구결과, 실패상황에서 서비스제공자의 진정성은 고객의 건설적 발언에 유의한 정(+)영향을 미치는 것으로 나타났고, 파괴적 발언에 유의한 부(-)의 영향을 미치는 것으로 나타났다. 또한 발언과 관계유지의도의 관계에서 건설적 발언은 관계유지의도에 유의한 정(+)의 영향을 미치는 것으로 나타났고, 파괴적 발언은 관계유지의도에 유의한 영향을 미치지 않는 것으로 나타났다. 본 연구는 실패상황에서 고객의 긍정적 발언을 높이기 위한 요소뿐만이 아니라 고객발언의 중요성을 제시하고 있으며 이를 통해 고객발언에 관심을 가질 수 있는 계기를 제공하고 있다.

• 대한후두음성언어의학회지
• /
• 제32권2호
• /
• pp.75-80
• /
• 2021

Background and Objectives Functional aphonia refers to in which by presenting whispering voice and almost producing very high-pitched tensed voices are produced. Voice therapy is the most effective treatment, but there is a lack of consensus for application of voice therapy. The purpose of this study was to examine the vocal characteristics of functional aphonia and the effect of voice therapy applied accordingly. Materials and Method From October 2019 to December 2020, 11 patients with functional aphonia were treated using voice therapy which was processing three stages such as vocal hygiene, trial therapy, and behavioral therapy. Of these, 7 patients who completed the voice evaluation before and after voice therapy was enrolled in this study. By retrospective chart review, clinical information such as sex, age, symptoms, duration, social and medical history, process of voice therapy, subjective and objective findings were analyzed. Voice parameters before and after voice therapy were compared. Results In GRBAS study, grade, rough, and asthenic, and in Consensus Auditory-Perceptual Evaluation of Voice, overall severity, roughness, pitch, and loudness were significantly improved after voice therapy. In Voice handicap index, all of the scores of total and sub-categories were significantly decreased. In objective voice analysis, jitter, cepstral peak prominence, and maximum phonation time were significantly improved. Conclusion The voice therapy was effective for the treatment of functional aphonia by restoring patient's vocalization and improving voice quality, pitch and loudness.

• 음성과학
• /
• 제14권2호
• /
• pp.43-53
• /
• 2007

The purpose of this study was to observe the effect of eating a raw egg by professional or nonprofessional voice users on their voice quality and the duration of the effect. 20 professional voice users and 20 nonprofessional voice users participated in the experiment and they had gone through stroboscopy to have no vocal or laryngeal diseases. The voice exam was performed three times: before eating a raw egg (1st period), right after eating it (2nd period), and 10 minutes later (3rd period). By using Multi-dimensional Voice Program which is a software of Computerized Speech Lab 4500 as a voice analysis instrument, the authors checked the F0, Jitter, Shimmer, Noise to harmonic ratio (NHR), and Voice Range Profile (VRP). Results showed as follows: Firstly, vocal hygiene was good in 57.5% of the total subjects and was poor in 42.5%. 40% of professional voice users and 75% of nonprofessional voice users hand good quality. 77.5% of the total subjects had the vocal fatigue while 22.5% of the subjects did not. 95% of the professional voice users and 60% of nonprofessional voice users complained the vocal fatigue. 60% of the total subjects reported a subjective vocal symptom. 65.0% professional voice users and 70.0% of nonprofessional voice users reported a voice symptom. From the results above, we suggest that eating a raw egg may lead to imporve voice quality of the professional voice users.

• 대한후두음성언어의학회지
• /
• 제31권1호
• /
• pp.13-18
• /
• 2020

Background and Objective The purpose of this study is to report the effect of voice therapy using the voice reinforcement method (VRM) in patients with vocal nodules. It is one of the holistic voice therapy methods for improving vocal mechanisms. VRM includes not only direct and indirect voice therapy, but also trial therapy and self-practice. Composed of four stages: vocal hygiene education, relaxation, reinforcement, and generalization. Materials and Methods The subjects were 13 patients who were diagnosed with vocal nodules. Acoustic analysis, auditory perceptual assessment, K-VHI-10 and nodules size were compared before and after voice therapy. Voice therapy was conducted by speech-language pathologist and the mean number was 4.2. Results In acoustic analysis, Jitter, vF₀, vAm, Shimmer, NHR, and VTI were significantly decreased. F₀ was increased after voice therapy for women. 'Grade', 'Rough,' and 'Breathy' were significantly decreased in the GRBAS scale after voice therapy. In addition, K-VHI-10 and nodules size were significantly decreased. Conclusion VRM seems to be an effective voice therapy method in vocal nodules treatment. In VRM, especially, trial therapy is given motivation for vocal nodules treatments and self-practice has a continuous therapeutic effect in everyday life. VRM can be also applied to the voice therapy for other hyper-functional dysphonia.

• 말소리와 음성과학
• /
• 제3권1호
• /
• pp.111-116
• /
• 2011

The purpose of this study was to analyze the association between self-reported voice problems and voice disorders in the Korean adult population. Data were collected from the 4th Korea National Health and Nutritional Examination Survey (2008) from 3,135 subjects (1,310 men and 1,825 women) aged 19 years and older. Multi-nominal logistic regression analyses were used to examine the association between self-reported voice problems and voice disorders in the Korean adult population. Adjusting for covariates (age, sex, education level, job, smoking, alcohol drinking, thyroid disorders, pain and discomfort during the last 2 weeks), self-reported voice problems included independently associated functional voice disorders (OR=4.70, 95% CI: 3.14-7.03) and organic voice disorders (OR=3.89, 95% CI: 1.57-9.65). The results of the present study verified that self-reported voice problems are valuable indicators for voice disorders. Further research is needed to ascertain the effect of self-reported voice problems on voice disorder in adults.