Purpose Data on vowel formants have been derived primarily from static measures
representing an assumed steady state. This review summarizes data on formant frequencies …

Background Dysarthria is an acquired speech disorder following neurological injury that
reduces intelligibility of speech due to weak, imprecise, slow and/or unco‐ordinated muscle …

Purpose The perceptual consequences of rate reduction, increased vocal intensity, and
clear speech were studied in speakers with multiple sclerosis (MS), Parkinson's disease …

Purpose The impact of clear speech, increased vocal intensity, and rate reduction on
acoustic characteristics of vowels was compared in speakers with Parkinson's disease (PD) …

Background. Speech changes occur in the early stages of Parkinson's disease (PD) and
cause communication difficulties, leading to social isolation. Lee Silverman voice treatment …

A new era in speech-language pathology practice is pending, and one that impels us to
innovate and diversify as we move forward into the 21st century. The impetus for this …

This study examined the relationship (1) between acoustic vowel space and the
corresponding tongue kinematic vowel space and (2) between formant frequencies (F1 and …

Background Speaking louder/more intensely represents a longstanding technique
employed to manage voice and intelligibility changes in people with Parkinson's. This …

Phonetic research investigates how speakers and listeners use speech to convey
messages. The speech produced to encode a particular message can vary wildly …

The purpose of this study was to investigate the impact of the Lee Silverman Voice
Treatment (LSVT®) on vowel articulation and consonant–vowel (C–V) coarticulation in …