The Japanese journal of neuropsychology

Full Text of this Article
in Japanese PDF (506K)

ArticleTitle	Commonality and difference in apraxia of speech: Comparison between the patients following cerebrovascular disease and neurodegenerative disease
Language	J
AuthorList	Yuki Takakura¹⁾, Mika Otsuki²⁾, Yoshitsugu Nakagawa³⁾
Affiliation	¹⁾Hokkaido University, Department of Emergent Neurocognition, Faculty of Health Sciences ²⁾Faculty of Health Sciences, Hokkaido University ³⁾Department of Communication Disorders, School of Rehabilitation Science, Health Sciences University of Hokkaido
Publication	Japanese Journal of Neuropsychology: 36 (2), 61-68, 2020
Received
Accepted
Abstract	We discussed "what is common and what is different" between the patients with anarthrie/ apraxia of speech due to cerebrovascular and neurodegenerative diseases based on the previous report. The common point was the broad correspondence between localization of brain lesions and prominent speech characteristics. The different point was that patients with neurodegenerative diseases showed two speech characteristics distinguishable from patients with cerebrovascular diseases. First, they exhibited prominent distorted articulation and lengthened morae compared with the segmented morae. Second, they could not always complete the production of single words in one breath. We suspected that anarthrie/apraxia of speech due to neurodegenerative diseases had selective damage to the neural networks for speech including respiratory and phonatory coordination. We conclude that the different pathological mechanisms may be responsible for the difference in speech symptoms between cerebrovascular and neurodegenerative diseases.
Keywords	anarthrie, apraxia of speech, primary progressive apraxia of speech, cerebrovascular disease, neurodegenerative disease