title: Influence of voice focus on tongue movement in speech.
abstract: The present study evaluated global aspects of lingual movement during sentence production with backward and forward voice focus. Nine female participants read a sentence with a variety of consonants in a normal condition and with backward and forward voice focus. Midsagittal tongue movement was recorded with ultrasound. Tongue height over time at an anterior, a central, and a posterior measurement angle was measured. The outcome measures were speech rate, cumulative distance travelled, and average movement speed of the tongue. There were no differences in speech rate between the different conditions. The cumulative distance travelled by the tongue and the average speed indicated that the posterior tongue travelled a smaller cumulative distance and at a slower speed in the forward focus condition. The central tongue moved a larger cumulative distance and at a higher speed in the backward focus condition. The study offers first insights on how tongue movement is affected by different voice focus settings and illustrates the plasticity of tongue movement in speech.
authors.affiliation: a Department of Speech-Language Pathology , University of Toronto , Toronto , ON , Canada.
authors.forename: Tim
authors.initials: T
authors.lastname: Bressmann
authors.affiliation: a Department of Speech-Language Pathology , University of Toronto , Toronto , ON , Canada.
authors.forename: Gillian
authors.initials: G
authors.lastname: de Boer
authors.affiliation: b Department of Fonoaudiologia , Universidade Estadual Paulista , Marilia , Brazil.
authors.forename: Viviane Cristina de Castro
authors.initials: VC
authors.lastname: Marino
authors.affiliation: b Department of Fonoaudiologia , Universidade Estadual Paulista , Marilia , Brazil.
authors.forename: Eliana Maria Gradim
authors.initials: EM
authors.lastname: Fabron
authors.affiliation: b Department of Fonoaudiologia , Universidade Estadual Paulista , Marilia , Brazil.
authors.forename: Larissa Cristina
authors.initials: LC
authors.lastname: Berti
mesh_terms: D005260:Female; D006801:Humans; D009068:Movement / Q000502:physiology*; D013060:Speech / Q000502:physiology; D013062:Speech Articulation Tests; D014059:Tongue / Q000000981:diagnostic imaging / Q000502:physiology*; D014463:Ultrasonography; D014831:Voice; D055815:Young Adult
keywords: Articulation; tongue movement; ultrasound; voice focus