TY - JOUR
T1 - Resting state cortical oscillations of patients with parkinson disease and with and without subthalamic deep brain stimulation
T2 - A magnetoencephalography study
AU - Cao, Chunyan
AU - Li, Dianyou
AU - Jiang, Tianxiao
AU - Ince, Nuri Firat
AU - Zhan, Shikun
AU - Zhang, Jing
AU - Sha, Zhiyi
AU - Sun, Bomin
N1 - Publisher Copyright:
© 2015 by the American Clinical Neurophysiology Society..
PY - 2015/4/4
Y1 - 2015/4/4
N2 - Purpose: In this study, we investigate the modification to cortical oscillations of patients with Parkinson disease (PD) by subthalamic deep brain stimulation (STN-DBS). Methods: Spontaneous cortical oscillations of patients with PD were recorded with magnetoencephalography during on and off subthalamic nucleus deep brain stimulation states. Several features such as average frequency, average power, and relative subband power in regions of interest were extracted in the frequency domain, and these features were correlated with Unified Parkinson Disease Rating Scale III evaluation. The same features were also investigated in patients with PD without surgery and healthy controls. Results: Patients with Parkinson disease without surgery compared with healthy controls had a significantly lower average frequency and an increased average power in 1 to 48 Hz range in whole cortex. Higher relative power in theta and simultaneous decrease in beta and gamma over temporal and occipital were also observed in patients with PD. The Unified Parkinson Disease Rating Scale III rigidity score correlated with the average frequency and with the relative power of beta and gamma in frontal areas. During subthalamic nucleus deep brain stimulation, the average frequency increased significantly when stimulation was on compared with off state. In addition, the relative power dropped in delta, whereas it rose in beta over the whole cortex. Through the course of stimulation, the Unified Parkinson Disease Rating Scale III rigidity and tremor scores correlated with the relative power of alpha over left parietal.
AB - Purpose: In this study, we investigate the modification to cortical oscillations of patients with Parkinson disease (PD) by subthalamic deep brain stimulation (STN-DBS). Methods: Spontaneous cortical oscillations of patients with PD were recorded with magnetoencephalography during on and off subthalamic nucleus deep brain stimulation states. Several features such as average frequency, average power, and relative subband power in regions of interest were extracted in the frequency domain, and these features were correlated with Unified Parkinson Disease Rating Scale III evaluation. The same features were also investigated in patients with PD without surgery and healthy controls. Results: Patients with Parkinson disease without surgery compared with healthy controls had a significantly lower average frequency and an increased average power in 1 to 48 Hz range in whole cortex. Higher relative power in theta and simultaneous decrease in beta and gamma over temporal and occipital were also observed in patients with PD. The Unified Parkinson Disease Rating Scale III rigidity score correlated with the average frequency and with the relative power of beta and gamma in frontal areas. During subthalamic nucleus deep brain stimulation, the average frequency increased significantly when stimulation was on compared with off state. In addition, the relative power dropped in delta, whereas it rose in beta over the whole cortex. Through the course of stimulation, the Unified Parkinson Disease Rating Scale III rigidity and tremor scores correlated with the relative power of alpha over left parietal.
KW - Cortical oscillations
KW - Deep brain stimulation
KW - Magnetoencephalography
KW - Parkinson disease
KW - Spectra
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U2 - 10.1097/WNP.0000000000000137
DO - 10.1097/WNP.0000000000000137
M3 - Article
C2 - 25233246
AN - SCOPUS:84926407381
SN - 0736-0258
VL - 32
SP - 109
EP - 118
JO - Journal of Clinical Neurophysiology
JF - Journal of Clinical Neurophysiology
IS - 2
ER -