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Δευτέρα 26 Φεβρουαρίου 2018

Intra-operative characterisation of subthalamic oscillations in Parkinson’s disease

There is growing interest in the nature of local field potential (LFP) activities recorded from the subthalamic nucleus (STN) of patients with Parkinson's disease (PD) undergoing neurosurgery for deep brain stimulation (DBS). This is fueled by the evidence that oscillatory activity in the beta frequency band is unduly synchronized and strong in these patients and that this relates to deficiency of dopamine in the basal ganglia (Hammond et al, 2007). Thus, the power of beta activity is correlated with the motor impairment in PD and the changes of power engendered by levodopa treatment or DBS correlate with improvements in bradykinesia and rigidity (Ray et al., 2008; Kühn et al., 2008 and 2009; Eusebio et al., 2011).

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