How is Cross Talk Calculated?
The crosstalk function attempts to measure correlation on LFP and Spike filter ranges. To be more specific, the algorithm temporarily overrides user settings to collect 1 second of 30 kHz, unfiltered data. This data is then filtered two ways: 500-1000 Hz Band Pass and a 1750-2250 Hz Bandpass with a 2nd Order Butterworth. After filtering the data, correlation coefficient matrices are calculated for both ranges and the diagonals are set to zero. In Matrix 1, Channels are cross talking if >0.5 and in Matrix 2 >0.35.