ERP creation method
ERP graphical representation
ERP time intervals
Amplitudes & Latencies of the ERP
Mean ERP comparison
According to 10%-20% rule (Jasper 1958)
Event Related Potentials are averaged waveforms as can be seen on the image above
A typical ERP signal from lead Fp2 of a control subject (time in msec, voltage in μvolts)
Significant time intervals of the ERP waveform.
Thy are assumed to correspond with psychiatric notions.
For each of the significant time intervals we calculate the amplitude (distance from x'x axis, i.e. voltage) and the latency (distance from y'y axis, i.e. time)
Comparing the mean ERPs of controls vs those of patients. It can be a helpful first step in the analysis.