Many research programs in spoken communication have studied the prosody from an acoustic, phonological, syntactic, semantic or psycholinguistic perspective. As far as we know, very few are the studies that have approached prosodic alterations in parkinsonian patients taking into consideration, at one and the same time, the three following levels of analysis: phonetic, phonological (intonation groups) and linguistic (functional levels).

The INTSINT approach has been applied to a number of languages and not just to normal speech but also pathological speech. The aim here is to study the relevance of this alphabet for the prosody of the dysarthric speech.