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Verbal monitoring in Parkinson’s disease: A comparison between internal and external monitoring

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  • Hanna S Gauvin
  • Jolien Mertens
  • Peter Mariën
  • Patrick Santens
  • Barbara A Pickut
  • Robert J Hartsuiker

Abstract

Patients with Parkinson’s disease (PD) display a variety of impairments in motor and non-motor language processes; speech is decreased on motor aspects such as amplitude, prosody and speed and on linguistic aspects including grammar and fluency. Here we investigated whether verbal monitoring is impaired and what the relative contributions of the internal and external monitoring route are on verbal monitoring in patients with PD relative to controls. Furthermore, the data were used to investigate whether internal monitoring performance could be predicted by internal speech perception tasks, as perception based monitoring theories assume. Performance of 18 patients with Parkinson’s disease was measured on two cognitive performance tasks and a battery of 11 linguistic tasks, including tasks that measured performance on internal and external monitoring. Results were compared with those of 16 age-matched healthy controls. PD patients and controls generally performed similarly on the linguistic and monitoring measures. However, we observed qualitative differences in the effects of noise masking on monitoring and disfluencies and in the extent to which the linguistic tasks predicted monitoring behavior. We suggest that the patients differ from healthy subjects in their recruitment of monitoring channels.

Suggested Citation

  • Hanna S Gauvin & Jolien Mertens & Peter Mariën & Patrick Santens & Barbara A Pickut & Robert J Hartsuiker, 2017. "Verbal monitoring in Parkinson’s disease: A comparison between internal and external monitoring," PLOS ONE, Public Library of Science, vol. 12(8), pages 1-28, August.
    • Handle: RePEc:plo:pone00:0182159
    DOI: 10.1371/journal.pone.0182159
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    1. Lisa Tabor Connor & Avron Spiro & Loraine K. Obler & Martin L. Albert, 2004. "Change in Object Naming Ability During Adulthood," The Journals of Gerontology: Series B, The Gerontological Society of America, vol. 59(5), pages 203-209.
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