Stable Voice Clusters Identified When Using the Maximum versus Minimum Intensity Curve in the Phonetogram.

Objective: To examine whether the minimum as well as the maximum voice intensity (i.e. sound pressure level, SPL) curves of a voice range profile (VRP) are required when discovering different voice groups based on a clustering analysis.

A lifetime of professional singing: Voice parameters and age in the Netherlands Radio Choir.

In professional choirs one would like to identify the incidence and severity of vocal problems due to ageing, and know how to influence them. The aim of the current study was to investigate to what extent easily obtainable voice parameters were age-related. From 47 singers of the Netherlands Radio Choir the Voice Range Profile parameters and the vibrato characteristics were measured.

The relation of vocal fold lesions and voice quality to voice handicap and psychosomatic well-being.

Background: Voice disorders have a multifactorial genesis and may be present in various ways. They can cause a significant communication handicap and impaired quality of life.

Objective: To assess the effect of vocal fold lesions and voice quality on voice handicap and psychosomatic well-being.

Laryngeal effects of nasal allergen provocation in singers with allergic rhinitis.

In spite of our recent insight into nasobronchial interaction mechanisms in allergic airway disease, the association between allergic rhinitis and voice complaints remains obscure. To evaluate the effects of nasal allergen provocation and seasonal grass pollen exposure on subjective and objective laryngeal parameters in singers with and without allergic rhinitis, an observational case control study was conducted. Prior to the pollen season, six grass pollen allergic and six non-allergic semiprofessional singers were exposed to nebulized sham solution and grass pollen extract (HAL°) in rising concentrations.

Voice quality in relation to voice complaints and vocal fold condition during the screening of female student teachers.

Objectives: The purpose of this study was to compare the perceptual examination of voice quality with the condition of the vocal folds and voice complaints during voice screening in female student teachers.

Methods: This research was a cross-sectional study in 214 starting student teachers using the four-point grade scale of the GRBAS and laryngostroboscopic assessment of the vocal folds. The voice quality was assessed by speech pathologists using the ordinal 4-point G-scale (overall dysphonia) of the GRBAS method in a running speech sample.

Biopsychosocial impact of the voice in relation to the psychological features in female student teachers.

Objective: The aim of the study was to assess biopsychosocial impact of the voice in relation to the psychological features in female student teachers.

Methods: This research was a cross-sectional study in 755 student teachers using general questionnaires, the Voice Handicap Inventory (VHI), Type D Scale-16, Symptom Check List (SCL-90), and Utrecht Coping List (UCL). Student teachers with a relative high score on the VHI (>75th percentile) and students with a relative low score (<25th percentile) were compared.

The background biopsychosocial status of teachers with voice problems.

Objective: The aim of the study was to explore the background biopsychosocial status of teachers with a relative voice handicap. The study also intended to investigate this biopsychosocial status in relation to behavior of not always reporting voice complaints.

Methods: This research was a cross-sectional survey, performed using questionnaires: a general voice questionnaire, the Voice Handicap Index (VHI), and the Symptom Checklist-90 (SCL-90).

The voice handicap of student-teachers and risk factors perceived to have a negative influence on the voice.

A cross-sectional questionnaire survey was performed. The objectives of the study were to assess the psychosocial impact of current voice complaints as perceived by student-teachers with voice complaints in comparison with student-teachers without voice complaints, and to observe the pattern of risk factors in relation to their voice handicap. Subjects in the general population without a voice-demanding profession were selected as a reference group for limited comparison with the total group of student-teachers (future professional voice users).

Prevalence of voice complaints, risk factors and impact of voice problems in female student teachers.

A cross-sectional questionnaire survey was done among 457 female student teachers and 144 females in the general population. The conclusions are based on the opinions of student teachers and the general population. The results of this study show that 39.

Consistency of the preoperative and intraoperative diagnosis of benign vocal fold lesions.

The purpose of this retrospective study was to compare the preoperative and intraoperative diagnosis of benign vocal fold lesions for consistency. The diagnosis was made in 221 consecutive patients with benign vocal fold lesions for which a microlaryngoscopy was carried out in a general ENT-clinic. The preoperative diagnosis was obtained by both white halogen and stroboscopic light.

Some objective measures indicative of perceived voice robustness in student teachers.

One of the problems confronted in the teaching profession is the maintenance of a healthy voice. This basic pedagogical tool is subjected to extensive use, and frequently suffers from overload, with some teachers having to give up their profession altogether. In some teacher training schools, it is the current practice to examine the student's voice, and to refer any perceived susceptibility to strain to voice specialists.