Degrees of supraglottic activity may be influenced by several independent variables that commonly change during regular voice production (e.g. level of loudness, pitch, and phonatory task).

​Previous studies have evaluated specific variables that may affect the degree of supraglottic tissue displacement in professional voice users.

​This course is designed to provide information about the variables that influence supraglottic activity in singing and why this activity should not be necessarily considered as a sign of vocal hyperfunction.

​About Dr Guzman

​Dr. Guzman is a voice pathologist with twenty years of clinical and academic experience. He received his Ph.D. in Vocology from the Tampere University, Finland. He also holds a certification in vocology from the University of Iowa and National Center for Voice and Speech (USA). Dr. Guzman joined the faculty at the Universidad de los Andes, Department of Communication Sciences and Disorders in 2018 following a 15-year academic career at the University of Chile. He also works as a clinician in the Department of Otolaryngology, Las Condes Clinic, Chile. Moreover, He joined the Tampere University (Finland) as Adjunct Professor in 2018.

​Dr. Guzman was recently invited to join the faculty at the Summer Vocology 2022 (University of Utah, USA). Additionally, Marco Guzman participates as guest lecturer at the Master of Clinical Vocology at the University of Bologna (Italy).

​Dr. Guzman is an active researcher and author of numerous scientific articles and book chapters related to the underling physiology of semi-occluded vocal tract exercises, physiologic voice therapy, and supraglottic constrictions during singing and speaking voice. Dr. Guzman is a frequent speaker and lecturer at national and international meetings on topics related to the assessment and management of voice disorders.

​He belongs to the editorial board of the Journal of Voice and to the Pan American Vocology association (PAVA) Advisory Board.