From: Somatotopical feedback versus non-somatotopical feedback for phantom digit sensation on amputees using electrotactile stimulation
Feeling
Strength
Current
Frequency
Pulse width
Weak
20% f max
Vibration
Medium
Positive
50% f max
50% P W max
Strong
80% f max
20% P W max
Pressure
Negative
100 Hz
80% P W max