Hi, I have 2 spike trains and would like to use cross-correlation to find out their time lag. Are there any resources out there that may guide me on cross correlation and explain how to further interpret the results into smt useful? Also, I have a few questions.
1) why is it that there is still a peak r value with 2 spike trains that are not correlated?
2) Do I have to normalize the spike train?
3) xcorr gives me the r and lag value. But how may I utilize this information to make it useful? ie is it significant?
4) why is it that a xcorr value (i input what mathworks suggested xcorr(x,y), returns me a correlation sequence) can be >1/-1? shouldnt a r value be bounded within that range?
Thank you and i appreciate any help for a beginner here :)