Abstract
The discharge activity of 637 neurons of the human subthalamic nucleus (STN), which were extracellularly recorded during twelve stereotactic surgeries in patients with Parkinson’s disease, has been analyzed. On the basis of the parameters of interspike intervals (ISIs), we have distinguished three major patterns of spontaneous neuronal activity: bursting neurons, regular tonic and irregular tonic neurons. Parametric analysis has enabled us to determine the values of basic parameters in the activity of these three distinguished types of neurons. It has been shown that the representativeness and the activity parameters of three different patterns change in the dorsoventral direction of the STN from the motor to the associative regions. The results will allow researchers to perform targeted search of pathological neuronal activity patterns associated with the motor symptoms of Parkinsonism.
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