Oscillatory reactivity to effortful cognitive processing in the subthalamic nucleus and internal pallidum: a depth electrode EEG study

Martina Bočková, Jan Chládek, Pavel Jurák, Josef Halámek, Steven Z Rapcsak, Marek Baláž, Jan Chrastina, Ivan Rektor

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

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.

Original languageEnglish (US)
Pages (from-to)841-852
Number of pages12
JournalJournal of Neural Transmission
Volume124
Issue number7
DOIs
StatePublished - Jul 1 2017

Fingerprint

Subthalamic Nucleus
Globus Pallidus
Deep Brain Stimulation
Electroencephalography
Electrodes
Dystonia
Parkinson Disease
Motor Activity

Keywords

  • Complex cognitive functions
  • Deep brain stimulation
  • ERD/S
  • Internal globus pallidum
  • Lateralization
  • Subthalamic nucleus

ASJC Scopus subject areas

  • Neurology
  • Clinical Neurology
  • Psychiatry and Mental health
  • Biological Psychiatry

Cite this

Oscillatory reactivity to effortful cognitive processing in the subthalamic nucleus and internal pallidum : a depth electrode EEG study. / Bočková, Martina; Chládek, Jan; Jurák, Pavel; Halámek, Josef; Rapcsak, Steven Z; Baláž, Marek; Chrastina, Jan; Rektor, Ivan.

In: Journal of Neural Transmission, Vol. 124, No. 7, 01.07.2017, p. 841-852.

Research output: Contribution to journalArticle

Bočková, Martina ; Chládek, Jan ; Jurák, Pavel ; Halámek, Josef ; Rapcsak, Steven Z ; Baláž, Marek ; Chrastina, Jan ; Rektor, Ivan. / Oscillatory reactivity to effortful cognitive processing in the subthalamic nucleus and internal pallidum : a depth electrode EEG study. In: Journal of Neural Transmission. 2017 ; Vol. 124, No. 7. pp. 841-852.
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