Abstract

AbstractPurposeRepetitions, prolongations, and blocks, as canonical categories of stuttering disfluencies, have long been characterized on auditory-perceptual grounds, while the articulatory behaviors giving rise to them remain poorly understood. This study investigates the articulatory basis of these disfluencies, and assesses how the underlying articulatory patterns relate to perceptual disfluency types (i.e., repetitions, prolongations, blocks) and the phonological features of stuttered segments.MethodSpeech production of seven adults who stutter was recorded using real-time MRI. We extracted the time-varying constriction trajectories of the primary oral articulator for stuttered tokens of labial, alveolar, and velar consonants, as well as the constriction trajectories of the velum. K-medoids clustering with dynamic time warping distance was used to identify recurrent patterns.ResultsTwo constriction patterns of the …

Date

2026

Authors

Yijing Lu, Louis Goldstein, Christina Hagedorn, Shrikanth Narayanan

Journal

Journal of Fluency Disorders

Pages

106224

Publisher

Elsevier