Assessment of Prosodic Communicative Efficiency in Parkinson's Disease As Judged by Professional Listeners

Table 1

Prosodic functions in Dutch: classification and perceptual correlates based upon Rietveld and van Heuven [23].

Name	Prosodic Function	Perceptual correlates; (for normal speech)	Name in current assessment
Lexical function	Discriminates between words	F0 change; (vowel) duration; intensity	Lexical Stress
Phrasing function	Segments the speech stream in information units	Preboundary lengthening; pauses; F0 change	Boundary Marking
Attentional marking	Highlights the most important elements in a unit	F0 change; (vowel) duration; intensity	Focus
Intentional marking	Nuances meaning	F0 change	—
Sentence typing	Discriminates between questions (Q) and declarations	Final F0 rise (Q); General F0 rise (Q); High initial F0 (Q)	Sentence Typing
Emotional prosody	Discriminates between different emotional states	General F0	Emotional Prosody
		F0 span
		speech rate

Perceptually most prominent correlates according to [23] are printed in bold.