Fig. 1
From: Actigraphy in brain-injured patients – A valid measurement for assessing circadian rhythms?
Graphical representation of the manual and automatic artifact correction of a 24-h actigraphy recording.a Uncorrected actigraphy data with the time of day being depicted on the x-axis and the amplitude of the motor activity on the y-axis. b Corrected actigraphy data after automatic (according to the tablet data) and manual artifact correction (marked with a red arrow). c External events recorded by the tablet in the patient room with longer vertical lines representing the start and shorter vertical lines the stop of the respective event