This paper presents results of an acoustic investigation of speech in progressive supranuclear palsy (PSP), multiple system atrophy (MSA) and idiopathic Parkinson's disease (IPD). The study had two aims: (a) to provide a first acoustic description of the speech of people with PSP and MSA, (b) to compare acoustic characteristics of the dysarthria associated with PSP and MSA with classic hypokinetic dysarthria. Four acoustic parameters (voice quality, pitch range, vowel space and alternating motion rate (AMR)) were investigated in 17 patients with PSP and 9 patients with MSA and compared with data from a large-scale study of IPD patients. Participants with PSP and MSA performed significantly worse than the PD group on AMR tasks. In addition, the pitch range of PSP participants was restricted. These results show potential for early differential diagnosis.
|Publication status||Published - 2007|
|Event||16th International Congress of Phonetic Science - Saarbrucken, Germany|
Duration: 6 Aug 2007 → 10 Aug 2007
|Conference||16th International Congress of Phonetic Science|
|Period||6/08/07 → 10/08/07|