Brain and Voice Signatures in Teachers

Официальное название

Neurobiological and Psychobiological Signatures of Vocal Effort in Early Career Teachers

Обзор

Primary muscle tension dysphonia voice disorder with symptoms of vocal strain and vocal fatigue is common and can have a significant negative impact on quality of Life. Yet, primary muscle tension dysphonia's causes are unknown precluding precise diagnostic classification. Stress and personality are thought to play a role and thus, the project aims to determine the practical and clinical effect of stress on the control of voice and speech in the brain. Participants are female early career teachers and student teachers with symptoms of vocal fatigue, as well as control participants without vocal fatigue, who perform speech tasks on two different occasions. Neural (imaging of brain), psychobiological (saliva, personality), and voice and speech (muscle activity of voice muscles on the neck with surface sensors, audio recordings) data will compare reactivity patterns of teachers who are stressresponders with those who are nonresponders as well as control participants. The central hypothesis is that voice box stress responders have heightened emotion-motor activations involving the emotional voice production pathway, which correlate with changes in voice muscle activity in the anterior neck. The results will provide fundamentally missing data in our understanding of the role of stress in vocal complaints and will yield new insights about the neural underpinnings of primary muscle tension dysphonia. The study findings will have a significant impact on how clinicians identify so-called laryngoresponders to help them prevent voice disorders.

Вмешательства

• Поведенческое Stress induction
  Induction of anticipatory stress to compare voice and speech control and production with and without exposure to stress.

Первичные конечные точки

• Vocal fatigue [Срок оценки: through study completion, an average of 1 month]
• BOLD MRI area 4p [Срок оценки: through study completion, an average of 1 month]
• Salivary cortisol [Срок оценки: through study completion, an average of 1 month]
• Suprahyoid muscle activity [Срок оценки: through study completion, an average of 1 month]
• Infrahyoid muscle activity [Срок оценки: through study completion, an average of 1 month]
• Personality, Social Potency [Срок оценки: through study completion, an average of 1 month]
• Personality, Stress Reaction [Срок оценки: through study completion, an average of 1 month]
• Personality, social anxiety [Срок оценки: through study completion, an average of 1 month]

Вторичные конечные точки (12)

• Vocal fatigue [Срок оценки: through study completion, an average of 1 month]
• Voice quality of life [Срок оценки: through study completion, an average of 1 month]
• Vocal tract discomfort [Срок оценки: through study completion, an average of 1 month]
• Informal questionnaire on vocal health [Срок оценки: through study completion, an average of 1 month]
• BOLD MRI SMA [Срок оценки: through study completion, an average of 1 month]
• BOLD MRI ACC [Срок оценки: through study completion, an average of 1 month]
• BOLD MRI MCC [Срок оценки: through study completion, an average of 1 month]
• BOLD MRI Amygdala [Срок оценки: through study completion, an average of 1 month]
• BOLD MRI PAG [Срок оценки: through study completion, an average of 1 month]
• Personality, Wellbeing [Срок оценки: through study completion, an average of 1 month]
• Personality, Social Closeness [Срок оценки: through study completion, an average of 1 month]
• Personality, social anxiety [Срок оценки: through study completion, an average of 1 month]

Критерии участия

Критерии включения

Teachers (max. 10 years full-time) or student teachers in good health between 21 and 39 years with symptoms of vocal fatigue.

Control participants in good health between 21 and 39 years without symptoms of vocal fatigue.

Критерии исключения

• Lefthandedness
• Smoking (past 5 years)
• Known changes of the vocal folds (e.g., vocal fold nodules), vocal fold paralysis, surgeries on the larynx or thryoid or current organic or neurological changes of the vocal folds or vocal function per videoendoscopy and -stroboscopy of the larynx
• History of voice therapy
• Hoarseness
• Respiratory illness, allergies (respiratory, silver), reflux or asthma at time of participation
• Hearing disorder or hearing aids
• Psychological, neurological or endocrinological disorders
• Psychotropic or steorid medications
• Body mass index > 30
• Indications against MRI such as metail parts in or on the body (e.g., permanent dental prostheses or braces, screws, prostheses, piercings or large tattoos
• Nearsightedness > -5 diopters, if only glasses are worn
• Claustrophobia
• Pregnancy

Критерии приведены из реестра в оригинале (на английском). Окончательную оценку соответствия проводит исследовательский центр.

Здоровые добровольцы: Да

Дизайн исследования

Распределение

Нерандомизированное

Модель

Параллельные группы

Маскирование

Открытое

Основная цель

Фундаментальное исследование

Центры проведения

Германия · 1 центр

• University Hospital Bonn — Bonn

Идентификаторы

NCT: NCT06126627 · R01DC018026

Первоисточники (государственные реестры)

• ClinicalTrials.gov (NIH, США)

Открыть это исследование на ClinicalTrials.gov ↗