Processing of Local and Global Auditory Deviants in Parkinson Disease: Electrophysiological Evidence for Enhanced Attention Capture

5Citations
Citations of this article
39Readers
Mendeley users who have this article in their library.
Get full text

Abstract

Objective: To investigate automatic auditory-change detection in patients with Parkinson disease (pwPD). Background: Previous results regarding changes in preattentive processing in pwPD have been inconclusive. Methods: We employed a paradigm assessing the preattentive processing of sequences of auditory tones containing deviants at either the local or global level, or at both levels. Twenty pwPD and 20 age-matched healthy controls were exposed to the tone series while they performed a visual task and had their event-related potentials recorded by electroencephalogram. Results: Event-related potentials showed a mismatch negativity, which was largest for the double-deviant stimuli, of intermediate amplitude for the local deviant stimuli, and smallest for the global deviant stimuli. The mismatch negativity was of similar size in the patients and controls, with the exception of the double-deviant condition (larger in controls). By contrast, the subsequent positive component was more pronounced for the Parkinson disease group than controls, particularly for the double-deviant condition. Conclusions: The larger positivity suggests that pwPD are more prone to distraction than healthy controls, probably because dopaminergic medication shifts the stability-flexibility balance toward cognitive flexibility with increased distractibility.

Cite

CITATION STYLE

APA

Heldmann, M., Teichmann, S., Al-Khaled, M., Brüggemann, N., & Münte, T. F. (2019). Processing of Local and Global Auditory Deviants in Parkinson Disease: Electrophysiological Evidence for Enhanced Attention Capture. Cognitive and Behavioral Neurology, 32(1), 31–38. https://doi.org/10.1097/WNN.0000000000000185

Register to see more suggestions

Mendeley helps you to discover research relevant for your work.

Already have an account?

Save time finding and organizing research with Mendeley

Sign up for free