Consonant and Vowel Duration in Parkinsonian French Speech

Danielle Duez (1)

1 LPL - Laboratoire Parole et Langage

The current study compared vowel and consonant duration in speech read by 10 French Parkinsonian speakers and 10 control speakers. The results show a different impact of Parkinson's disease (PD) on speech segments. Consonants were shortened in PD speech while vowels were significantly longer. This results from the concomitance of articulatory movements of reduced amplitude and orofacil bradykinesia. As a consequence syllabic productions are of the overall duration in PD speech as in normal speech. The durational contrast of consonants was maintained, although for vowels there was less agreement with the normal pattern of intrinsic durations, especially for high vowels.

Mots clés: Segmental duration; intrinsic duration; parkinsonian speech; consonant shortening; vowel lengthening

Domaines: Linguistique

Danielle Duez. Consonant and Vowel Duration in Parkinsonian French Speech. 2006, pp.101-105. ⟨hal-00136745⟩