Table 2.

The definition of EEG Data of four different motion stages.

Action state	Meaning of time period	Start time	End time
First movement state	Hands start to move	tHandStart	tBothStartLoadPhase
Second movement state	Finger start to apply load force	tBothStartLoadPhase	LEDOff
Third movement state	Fingers apply load and hands return objects	LEDOff	tReplace
Fourth movement state	Return the hand to its original position	tReplace	tHandStop