J
2021
Articulatory network reorganization in Parkinson ? s disease as assessed by multimodal MRI and acoustic measures
KLOBUŠIAKOVÁ, Patrícia; J. MEKYSKA; Luboš BRABENEC; Z. GALAZ; V. ZVONCAK et al.
Basic information
Original name
Articulatory network reorganization in Parkinson ? s disease as assessed by multimodal MRI and acoustic measures
Authors
KLOBUŠIAKOVÁ, Patrícia; J. MEKYSKA; Luboš BRABENEC; Z. GALAZ; V. ZVONCAK; J. MUCHA; S.Z. RAPCSAK and Irena REKTOROVÁ
Edition
Parkinsonism and Related Disorders, Oxford, Elsevier, 2021, 1353-8020
Other information
Type of outcome
Article in a journal
Country of publisher
United Kingdom of Great Britain and Northern Ireland
Confidentiality degree
is not subject to a state or trade secret
Marked to be transferred to RIV
Yes
RIV identification code
RIV/00216224:14740/21:00120169
Organization
Středoevropský technologický institut – Repository – Repository
Keywords in English
Acoustic analysis; Hypokinetic dysarthria; fMRI; Parkinson?s disease; Voxel-based morphometry; Resting-state functional connectivity
Links
EF16_013/0001775, research and development project. NU20-04-00294, research and development project. 734718, interní kód Repo. Czech-BioImaging, large research infrastructures. Czech-BioImaging II, large research infrastructures.
In the original language
Introduction: Hypokinetic dysarthria (HD) is common in Parkinson?s disease (PD). Our objective was to evaluate articulatory networks and their reorganization due to PD pathology in individuals without overt speech impairment using a multimodal MRI protocol and acoustic analysis of speech. Methods: A total of 34 PD patients with no subjective HD complaints and 25 age-matched healthy controls (HC) underwent speech task recordings, structural MRI, and reading task-induced and resting-state fMRI. Grey matter probability maps, task-induced activations, and resting-state functional connectivity within the regions engaged in speech production (ROIs) were assessed and compared between groups. Correlation with acoustic parameters was also performed. Results: PD patients as compared Tto HC displayed temporal decreases in speech loudness which were related to BOLD signal increases in the right-sided regions of the dorsal language pathway/articulatory network. Among those regions, activation of the right anterior cingulate was increased in PD as compared to HC. We also found bilateral posterior superior temporal gyrus (STG) GM loss in PD as compared to HC that was strongly associated with diadochokinetic (DDK) irregularity in the PD group. Task-induced activations of the left STG were increased in PD as compared to HC and were related to the DDK rate control. Conclusions: The results provide insight into the neural correlates of speech production control and distinct articulatory network reorganization in PD apparent already in patients without subjective speech impairment.
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