Abstract
Behavioral studies on auditory deviance detection in patients with Parkinson’s disease (PD) have reported contradictory results. The primary aim of this study was to investigate auditory deviance detection of multiple auditory features in patients with PD by means of objective and reliable electroencephalographic (EEG) measurements. Twelve patients with early-stage PD and twelve age- and gender-matched healthy controls (HCs) were included in this study. Patients with PD participated without their regular dopaminergic medication. All subjects underwent an audiometric screening and performed a passive multi-feature mismatch negativity (MMN) paradigm. Repeated-measures analysis of variance (ANOVA) demonstrated no significant differences between patients with PD and HCs regarding MMN mean amplitude and latency for frequency, duration and gap deviants. Nevertheless, a trend towards increased MMN mean amplitude and latency was found in response to intensity deviants in patients with PD compared to HCs. Increased intensity MMN amplitude may indicate that more neural resources are allocated to the processing of intensity deviances in patients with PD compared to HCs. The interpretation of this intensity-specific MMN alteration is further discussed in the context of a compensatory mechanism for auditory intensity processing and involuntary attention switching in PD.
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This work was supported by the Special Research Fund (BOF) of Ghent University. The funding source was not involved in study design, the collection, analysis and interpretation of data, in the writing of the report, or the decision to submit the article for publication.
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This work was supported by the Special Research Fund (BOF) of Ghent University. The funding source was not involved in study design, the collection, analysis and interpretation of data, in the writing of the report, or the decision to submit the article for publication.
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De Groote, E., Bockstael, A., Botteldooren, D. et al. Evaluation of multi-feature auditory deviance detection in Parkinson’s disease: a mismatch negativity study. J Neural Transm 128, 645–657 (2021). https://doi.org/10.1007/s00702-021-02341-z
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DOI: https://doi.org/10.1007/s00702-021-02341-z