Subdural-ECoG Food-Tracking Task
Q) Which point in time does '0' of 'Time' in LFP.mat indicate?
A) Motion and LFP were recorded by different systems.
The recording of Motion data was initiated few seconds earlier and
terminated few seconds later than the LFP recording. But Time (in LFP.mat) and Motion.time were synchronized.
So for Motion data, simply ignore the data outside then range of Time (in LFP.mat).
Q) What does 'Motion.idx' in Motion.mat indicate?
A) Motion.idx simply indicates the indices of samples, not very informative.
Use Motion.time to align Motion data with LFP data.