UNIGE document Scientific Article
previous document  unige:43804  next document
add to browser collection
Title

Progressive apraxia of speech as a window into the study of speech planning processes

Authors
Croisier, Michèle
Published in Cortex. 2012, vol. 48, no. 8, p. 963-971
Abstract We present a 3-year follow-up study of a patient with progressive apraxia of speech (PAoS), aimed at investigating whether the theoretical organization of phonetic encoding is reflected in the progressive disruption of speech. As decreased speech rate was the most striking pattern of disruption during the first 2 years, durational analyses were carried out longitudinally on syllables excised from spontaneous, repetition and reading speech samples. The crucial result of the present study is the demonstration of an effect of syllable frequency on duration: the progressive disruption of articulation rate did not affect all syllables in the same way, but followed a gradient that was function of the frequency of use of syllable-sized motor programs. The combination of data from this case of PAoS with previous psycholinguistic and neurolinguistic data, points to a frequency organization of syllable-sized speech-motor plans. In this study we also illustrate how studying PAoS can be exploited in theoretical and clinical investigations of phonetic encoding as it represents a unique opportunity to investigate speech while it progressively disrupts.
Keywords Apraxias/physiopathologyFollow-Up StudiesHumansLinguisticsMalePhoneticsReadingSpeech/physiologySpeech Production Measurement
Identifiers
PMID: 21513930
Full text
Article (Published version) (502 Kb) - document accessible for UNIGE members only Limited access to UNIGE
Structures
Research groups Neuropsychologie et neurologie comportementale (951)
Perception et production de la parole
Citation
(ISO format)
LAGANARO, Marina et al. Progressive apraxia of speech as a window into the study of speech planning processes. In: Cortex, 2012, vol. 48, n° 8, p. 963-971. https://archive-ouverte.unige.ch/unige:43804

184 hits

2 downloads

Update

Deposited on : 2014-12-18

Export document
Format :
Citation style :