Oscillatory reactivity to effortful cognitive processing in the subthalamic nucleus and internal pallidum: a depth electrode EEG study
Language English Country Austria Media print-electronic
Document type Journal Article, Research Support, Non-U.S. Gov't
PubMed
28389718
DOI
10.1007/s00702-017-1719-6
PII: 10.1007/s00702-017-1719-6
Knihovny.cz E-resources
- Keywords
- Complex cognitive functions, Deep brain stimulation, ERD/S, Internal globus pallidum, Lateralization, Subthalamic nucleus,
- MeSH
- Adult MeSH
- Dystonia physiopathology therapy MeSH
- Electroencephalography MeSH
- Globus Pallidus physiology MeSH
- Deep Brain Stimulation * MeSH
- Cognition physiology MeSH
- Middle Aged MeSH
- Humans MeSH
- Subthalamic Nucleus physiology MeSH
- Parkinson Disease physiopathology therapy MeSH
- Aged MeSH
- Check Tag
- Adult MeSH
- Middle Aged MeSH
- Humans MeSH
- Male MeSH
- Aged MeSH
- Female MeSH
- Publication type
- Journal Article MeSH
- Research Support, Non-U.S. Gov't MeSH
This study investigates how complex motor-cognitive activities are processed in the subthalamic nucleus (STN) and internal globus pallidum (GPi), as adverse neuropsychiatric effects may accompany deep brain stimulation (DBS), mainly in Parkinson's disease (PD) and STN-DBS. Dystonia patients with GPi-DBS electrodes (n = 5) and PD subjects (n = 5) with STN-DBS electrodes performed two tasks: (1) copying letters; and (2) writing any letter other than that appearing on the monitor. The cognitive load of the second task was greater than that of the first. Intracranial local field potentials (LFPs) were analysed. A beta power decrease was the main correlate of the enhanced cognitive load during the second task in both structures, with a lateralization to the left side, mainly in the GPi. A gamma power increase linked with the increased cognitive activity was observed only in the STN. Differences were also observed in the theta and alpha bandpasses. Beta ERD reactivity seems to be essential during the processing of complex motor-cognitive tasks, increases with enhanced cognitive effort, and was observed in both the STN and GPi. Oscillatory reactivity to effortful cognitive processing in other frequency bands was less consistent, with differences between the studied nuclei. Lateralization of activity related to cognitive factors was observed mainly in the GPi.
Department of Neurology University of Arizona Tucson USA
Department of Neurosurgery St Anne's Hospital Masaryk University Brno Czech Republic
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