A preliminary study of a quantitative analysis method for high speed laryngoscopic images

High speed laryngoscopic study provides new information on the vocal fold vibratory patterns which has not been made possible before. Qualitative analysis of high speed laryngoscopic images is commonly reported in the literature. However, quantitative studies are necessary to provide objective measures for research and clinical purposes. This study reports the development of the High Speed Video Processing Program in analysing high-speed laryngoscopic video images obtained from 15 non-dysphonic speakers. Nine glottal ratio indices that represented the full opened glottal area, glottal width and glottal length were computed using the processing program. Data from two dysphonic participants were included to illustrate the manifestation of these glottal measures in dysphonic voices. Some of these glottal ratio index measures showed high variability across participants. However, significant differences were found in a number of index measures among the creaky, modal and falsetto registers in the non-dysphonic participants. In addition, the glottal area ratio index was found to be specifically sensitive in detecting dysphonia in high speed glottal images. The proposed semi-automatic High Speed Video Processing Program showed value in the analysis of high speed laryngoscopic images. © 2010 The Speech Pathology Association of Australia Limited.postprin

嗓音科學使用方法: 教師及專用聲人士手冊 (第三版/電子版)

In English, Traditional Chinese and Simplified Chinese versionspublished_or_final_versio

Noise Levels In An Urban Asian School Environment

Background noise is known to adversely affect speech perception and speech recognition. High levels of background noise in school classrooms may affect student learning, especially for those pupils who are learning in a second language. The current study aimed to determine the noise level and teacher speech-to-noise ratio (SNR) in Hong Kong classrooms. Noise level was measured in 146 occupied classrooms in 37 schools, including kindergartens, primary schools, secondary schools and special schools, in Hong Kong. The mean noise levels in occupied kindergarten, primary school, secondary school and special school classrooms all exceeded recommended maximum noise levels, and noise reduction measures were seldom used in classrooms. The measured SNRs were not optimal and could have adverse implications for student learning and teachers’ vocal health. Schools in urban Asian environments are advised to consider noise reduction measures in classrooms to better comply with recommended maximum noise levels for classrooms.published_or_final_versio

Neuronavigated high-frequency repetitive transcranial magnetic stimulation for chronic post-stroke dysphagia: A randomized controlled study

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Prospective Study of Treatment of Voice Problems in Teachers: Preliminary Results

Speech-Language Pathology Session IBPurpose: To assess the value of a novel web-based voice hygiene education (VH) versus voice hygiene + voice production training (VH+VP) for the treatment of voice problems in teachers. Methods: N= 108 student and professional teachers in the US and Hong Kong, who self-identified as having a voice problem were enrolled in a prospective therapy program, and received either a personalized VH intervention; VH+VP interventions (similar to Lessac-Madsen Resonant Voice Therapy), or no intervention. The VH and VH+VP groups received one intervention face-to-face, during a single day, followed by a four-week internet monitoring period with personalized feedback. One year later, participants received a web-based booster of their assigned intervention, followed by an internet monitoring period. Follow-up measures were collected 1, 3, 12, and 24 months after their first intervention date. The VHI served as the primary outcome measure. Results: Considering the greatest change from baseline in VHI scores across all follow-up time-points, all groups showed some evidence of improvement over time. For the greatest change parameter, the VH+VP group showed the most improvement (M = -11, SE = 3), followed by the VH (M = -8, SE = 5) and the control group (M = -2, SE = 2), p < .05 for all comparisons. All three groups showed improvement in VHI at all follow-up time-points (1 mo, 3 mo, 12 mo, 24 mo). The VH+VP group saw the biggest improvement (largest VHI decreases) starting at 12 mo, and this trend continued through the 24 mo mark. Conclusions: Preliminary results indicate that a significant decrease in self-perceived voice handicap occurs following a personalized voice hygiene program combined with voice production training in teachers with voice problems. Results were consistent across institutions. Results indicate that a unique voice training program combining live and web-based interventions may be beneficial for teachers with voice problems.published_or_final_versio

Tele-Assessment Project-Voice Risk Calculator: Reducing the Risk of Developing Voice Problems in Teachers

Health and Rehabilitation Sciences Meeting - powerpoint presentationpreprin

A Vibrant Community of Readers, Authors and Reviewers: A Medical Editors' Necessity and a Challenge for Medical Education

info:eu-repo/semantics/publishedVersio

Anti-Inflammatory and Wound Healing Effect of Acupuncture in Treating Phonotraumatic Vocal Fold Pathologies

Speech-Language Pathology Session 2BConference Theme: Care of the Professional VoiceBackground: Acupuncture has been shown to be effective in bringing about improvements in benign vocal lesions and vocal function (Yiu et al., 2006). The underlying biological mechanism of acupuncture in the treatment of benign vocal pathologies is not fully understood yet. The improvement is, however, not a result of stress reduction that is often attributed to acupuncture (Kwong & Yiu, 2010). Objective: This study set out to investigate whether acupuncture would influence the anti-inflammatory process in vocal fold lesion healing ...published_or_final_versio

Management of swallowing problems in individuals with dementia

Session D: Imaging (MRI, PET, VFSS) & DementiaOrganised by: The University of Hong Kong Alzheimer's Disease Research Network (HKUADR Network) ; Research Centre of Heart, Brain, Hormone and Healthy Aging, The University of Hong Kon