Abstract

Clinicians rely on perceptual analysis in the assessment and diagnosis of motor speech disorders. However, connecting perceptual measures to quantitative data has proved challenging. This study uses correlational analyses to explore the relationship between perceptual, acoustic, and kinematic measures. Twenty typical speakers provided speech samples of rapid syllable repetition and speech tasks, which were then rated by 12 listeners for precision and steadiness on a visual analog scale. Data was analyzed to identify significant correlations between the measures. We found evidence of a modest perceptual-acoustic relationship, with results suggesting that acoustic rate may be correlated with perceptual features. Our findings also suggest a significant perceptual-kinematic relationship, as several kinematic measures of displacement demonstrated significant correlations with precision and steadiness ratings. We found that speakers with more consistent speech movements received higher steadiness ratings, and speakers with faster articulatory movements were rated as more precise. This study supports the use of perceptual analysis in clinical practice and points towards establishing connections between perceptual, acoustic, and kinematic measures used in speech analysis.

Degree

College and Department

David O. McKay School of Education; Communication Disorders

Rights

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