Spatio-temporal dynamics of cortical drive to human subthalamic nucleus neurons in Parkinson's disease

Andrew Sharott*, Alessandro Gulberti, Wolfgang Hamel, Johannes A. Köppen, Alexander Münchau, Carsten Buhmann, Monika Pötter-Nerger, Manfred Westphal, Christian Gerloff, Christian K.E. Moll, Andreas K. Engel

*Corresponding author for this work
3 Citations (Scopus)


Pathological synchronisation of beta frequency (12–35 Hz) oscillations between the subthalamic nucleus (STN) and cerebral cortex is thought to contribute to motor impairment in Parkinson's disease (PD). For this cortico-subthalamic oscillatory drive to be mechanistically important, it must influence the firing of STN neurons and, consequently, their downstream targets. Here, we examined the dynamics of synchronisation between STN LFPs and units with multiple cortical areas, measured using frontal ECoG, midline EEG and lateral EEG, during rest and movement. STN neurons lagged cortical signals recorded over midline (over premotor cortices) and frontal (over prefrontal cortices) with stable time delays, consistent with strong corticosubthalamic drive, and many neurons maintained these dynamics during movement. In contrast, most STN neurons desynchronised from lateral EEG signals (over primary motor cortices) during movement and those that did not had altered phase relations to the cortical signals. The strength of synchronisation between STN units and midline EEG in the high beta range (25–35 Hz) correlated positively with the severity of akinetic-rigid motor symptoms across patients. Together, these results suggest that sustained synchronisation of STN neurons to premotor-cortical beta oscillations play an important role in disrupting the normal coding of movement in PD.

Original languageEnglish
JournalNeurobiology of Disease
Pages (from-to)49-62
Number of pages14
Publication statusPublished - 01.04.2018

Research Areas and Centers

  • Academic Focus: Center for Brain, Behavior and Metabolism (CBBM)


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