Publication: Verbal adynamia in parkinsonian syndromes: behavioral correlates and neuroanatomical substrate
Issued Date
2018-07-04
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ISSN
14653656
13554794
13554794
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2-s2.0-85054534668
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Mahidol University
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SCOPUS
Bibliographic Citation
Neurocase. Vol.24, No.4 (2018), 204-212
Suggested Citation
Nadia K. Magdalinou, Hannah L. Golden, Jennifer M. Nicholas, Pirada Witoonpanich, Catherine J. Mummery, Huw R. Morris, Atbin Djamshidian, Tom T. Warner, Elizabeth K. Warrington, Andrew J. Lees, Jason D. Warren Verbal adynamia in parkinsonian syndromes: behavioral correlates and neuroanatomical substrate. Neurocase. Vol.24, No.4 (2018), 204-212. doi:10.1080/13554794.2018.1527368 Retrieved from: https://repository.li.mahidol.ac.th/handle/20.500.14594/44924
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Title
Verbal adynamia in parkinsonian syndromes: behavioral correlates and neuroanatomical substrate
Abstract
© 2018, © 2018 The Author(s). Published by Informa UK Limited, trading as Taylor & Francis Group. Verbal adynamia (impaired language generation, as during conversation) has not been assessed systematically in parkinsonian disorders. We addressed this in patients with Parkinson’s dementia, progressive supranuclear palsy and corticobasal degeneration. All disease groups showed impaired verbal fluency and sentence generation versus healthy age-matched controls, after adjusting for general linguistic and executive factors. Dopaminergic stimulation in the Parkinson’s group selectively improved verbal generation versus other cognitive functions. Voxel-based morphometry identified left inferior frontal and posterior superior temporal cortical correlates of verbal generation performance. Verbal adynamia warrants further evaluation as an index of language network dysfunction and dopaminergic state in parkinsonian disorders.