High Density Signal Meaning When I was reading an article, I found that it describes the EEG signal as a  high-density signal. So what is that mean?


  EMG is high temporal resolution  and moderate spatial resolution
  (comparable  to high-density EEG)
"High-density EEG" refers to the number of electrodes in the array.  Typically, any EEG rig with more than 64 electrodes is considered to be high-density electroencephalography.