| 摘要 |
<P>PROBLEM TO BE SOLVED: To enhance the speed of a processing time and improve a separation accuracy when separating and extracting a single neuron activity waveform from raw waveforms measured by a tetrode. <P>SOLUTION: A spike waveform extraction part 10 extracts spike waveforms from a plurality of raw waveforms measured from neurocyte by a tetrode constituted of a plurality of recording electrodes. A cluster waveform generation part 12 generates a plurality of cluster waveforms from the spike waveforms based on an expectation maximization algorithm. An independent component waveform extraction part 13 generates a plurality of independent component waveforms from the plurality of cluster waveforms based on an independent component analysis method. When prescribed conditions are satisfied, a single neuron activity waveform extraction part 15 extracts the single neuron activity waveform by connecting mutually similar waveforms together out of the plurality of independent component waveforms. This spike sorting apparatus 1 thus separates at least one single neuron activity waveform from the plurality of raw waveforms. <P>COPYRIGHT: (C)2007,JPO&INPIT |
