Herbert A. Leeper
University of Western Ontario
27 Papers
196 Citations
Herbert A. Leeper is an academic researcher from University of Western Ontario. The author has contributed to research in topics: Intelligibility (communication) & Cognition. The author has an hindex of 16, co-authored 27 publications. Previous affiliations of Herbert A. Leeper include Mental Health Foundation.
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Papers
Cognition, Language, and Speech in Amyotrophic Lateral Sclerosis: A Review
TL;DR: The impact of speech and motor deficits are discussed in relation to the issues of assessment of cognition and language and direction for future research to investigate cognitive dysfunction in ALS is presented.
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•Journal Article
Dysarthric speech: a comparison of computerized speech recognition and listener intelligibility.
Philip C. Doyle,Herbert A. Leeper,Ava-Lee Kotler,Nancy Thomas-Stonell,O'Neill C,Dylke Mc,Rolls K +6 more
TL;DR: Data indicate that computerized recognition of both dysarthric and nonimpaired speech was characterized by initially steep increases in correct recognition with more gradual increases noted during the second through fifth sessions, andceptual recognition by non-hearing-IMpaired adults indicates generally stable intelligibility scores over time.
Laryngeal Airway Resistance of Older Men and Women as a Function of Vocal Sound Pressure Level
TL;DR: The present results suggest that separate norms need to be employed for males and females when determining RLAW values, and consideration should be given to examining the underlying airflow and pressure values when evaluating or monitoring changes in aerodynamic activity during voice production.
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A Description of Phonetic, Acoustic, and Physiological Changes Associated With Improved Intelligibility in a Speaker With Spastic Dysarthria
TL;DR: Spastic dysarthria is a motor speech disorder produced by bilateral damage to the direct and indirect activation pathways of the central nervous system.
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Consistency of laryngeal airway resistance in adult women
TL;DR: The Rlaw range and standard deviation figures decreased significantly from the uncontrolled condition during syllable productions to the midrange intensity (75 dB SPL), suggesting that control of intensity is an important variable to consider during clinical sampling.
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