PURPOSE: The study was aimed at characterizing age-related changes in speech motor performance on a nonword repetition task as a function of practice and nonword length and complexity. METHOD: Nonword repetition accuracy, lip aperture coordination, and nonword production durations were assessed on 2 consecutive days for 16 young and 16 elderly participants for the production of 6 novel nonwords increasing in length and complexity. RESULTS: The effect of age on the ability to accurately and rapidly repeat long, complex nonwords was significant. However, the authors found no differences between the speech motor coordinative patterns of young and elderly adults. Further, the authors demonstrated age- and nonword-specific within- and between-session gains in speech motor performance. CONCLUSIONS: The authors speculate that cognitive, sensory, and motor factors interact in complex ways in elderly individuals to produce individual differences in nonword repetition ability at the levels of both behavioral and speech motor performance.
PURPOSE: The study was aimed at characterizing age-related changes in speech motor performance on a nonword repetition task as a function of practice and nonword length and complexity. METHOD: Nonword repetition accuracy, lip aperture coordination, and nonword production durations were assessed on 2 consecutive days for 16 young and 16 elderly participants for the production of 6 novel nonwords increasing in length and complexity. RESULTS: The effect of age on the ability to accurately and rapidly repeat long, complex nonwords was significant. However, the authors found no differences between the speech motor coordinative patterns of young and elderly adults. Further, the authors demonstrated age- and nonword-specific within- and between-session gains in speech motor performance. CONCLUSIONS: The authors speculate that cognitive, sensory, and motor factors interact in complex ways in elderly individuals to produce individual differences in nonword repetition ability at the levels of both behavioral and speech motor performance.
Entities:
Keywords:
aging; kinematics; nonword repetition; practice; speech motor control; speech motor performance
Authors: Phil Weir-Mayta; Kristie A Spencer; Steven M Bierer; Ayoub Daliri; Peter Ondish; Ashley France; Erika Hutchison; Caitlin Sears Journal: Int J Aging Res Date: 2019
Authors: Kaila L Stipancic; Yi-Ling Kuo; Amanda Miller; Hayden M Ventresca; Dagmar Sternad; Teresa J Kimberley; Jordan R Green Journal: Exp Brain Res Date: 2021-09-15 Impact factor: 1.972