A Speaking Task Analysis of the Dysarthria in Cerebellar Disease

Abstract

Cerebellar disease affects a number of skilled movements, including those in speech. Ataxic dysarthria, the speech disorder that typically accompanies cerebellar disease, was studied by acoustic methods. Control subjects and subjects with ataxic dysarthria were recorded while performing a number of speaking tasks, including sustained vowel phonation, syllable repetition, monosyllabic word production (intelligibility test), sentence recitation, and conversation. Acoustic data derived from the speech samples confirmed the hypothesis that temporal dysregulation is a primary component of the speech disorder. The data also show that the nature of the disorder varies with the speaking task. This result agrees with observations on other motor systems in subjects with cerebellar disease and may be evidence of a dissociation of impairments. Suggestions are offered on the selection of measures for a given task and on the role of the cerebellum in the regulation of speaking.

Rhythm in the speech of a person with right hemisphere damage: Applying the pairwise variability index

“…Using an early forerunner of the PVI, Ackerman and Hertrich (1994), and Kent, Kent, Rosenbek, Vorperian, and Weismer, (1997) found little evidence of syllable timing for this population. However, the metric used appears to be overly sensitive to the durations of individual syllables (Kent and Kim, 2003, see p 440).…”

Effet de l’accélération artificielle du signal de parole sur la perception des dysarthries cérébelleuses: à propos de deux cas

“…Sur le plan physiopathologique, la perte de coordination et de la précision des mouvements liée à l'atteinte est à l'origine d'une dysrégulation avant tout temporelle de l'articulation de la parole [1,2] . Pour Ackermann et al [3] , la limitation des gestes articulatoires ne peut pas compenser complètement l'exécution ralentie des mouvements dans les cas les plus marqués de bradykinésie.…”

“…La durée des phrases, des syllabes et des pauses est augmentée. La réduction de l'accentuation prosodique est soulignée en langue anglaise [1] et suédoise [10] .…”

Diadococinesia oral e laríngea em indivíduos a partir de cinqüenta anos de idade

“…O conhecimento proporcionado por esse estudo sobre os parâmetros de normalidade da DDC oral e laríngea de adultos a partir de 50 anos, falantes do português brasileiro, será útil para atuação junto a indivíduos com distúrbios da comunicação, já que essa avaliação é importante em diversas instâncias, como para auxiliar no diagnóstico e indicar a severidade das doenças (LANGMORE; LEHMAN, 1994, KENT et al, 1997, LUNDY et al, 2004BARSOTTINI;FERRAZ, 2002), avaliar procedimentos pré e pós-cirúrgicos, (GLASS; KNAPP; BLOOMER, 1977, HELLER;LEVY;SCIUBBA, 1991), avaliar o progresso da terapia e a eficácia do tratamento realizado (PRATHANEE, 1998, HARTELIUS;LILLVIK, 2003, TJADEN;WATLING, 2003, SWART;ENGELEN;MAASSEN, 2007). Além disso, as diferenças entre idade e gênero encontradas na DDC oral e laríngea neste grupo de adultos e idosos devem ser consideradas na avaliação da comunicação oral.…”

“…Pode ser utilizado o apoio visual da onda sonora (PTACEK et al, 1966, FLETCHER, 1972 ou programa computadorizado (BLUMBERGER; SULLIVAN; CLEMENT, 1995, ACKERMANN;KONCZAK;HERTRICH, 1997, KENT et al, 1997, OZAWA et al, 2001, LUNDY et al, 2004, MEURER et al, 2004, DEPRET, 2005 1992, RENOUT et al, 1995MIRECKA, 2001, OZAWA et al, 2001TSANG, 2002, ZIEGLER, 2002HARTELIUS;LILLVIK, 2003, PEREIRA et al, 2004, DEPRET, 2005NISHIO;NIIMI, 2006, ENGELEN;MAASSEN, 2007), assim como também em crianças ou adolescentes com problemas na comunicação (PRINS, 1962, DWORKIN, 1978HUGHES;FRESE, 1985, ROSIN et al, 1988. Entretanto, em indivíduos idosos saudáveis são poucos os estudos (PTACEK et al, 1966, SHANKS, 1970AMERMAN, 1987, MEURER et al, 2004.…”