Figure 2. Behavioral analysis including feeding motion.

a) Distance traveled per minute. We show the mean value and standard error of total distance traveled, including feeding behavior, for a 1-min period 28 days after surgery. b) Mean speed/min. The mean and standard error of the moving speed during 1 min 28 days after operation. c) Maximum speed/min. The mean and standard error of the maximum speed, including feeding behavior, for 1 min 28 days after operation. * P<0.05 in comparison with preoperative values indicating presence of deficit. † P<0.05 in comparison with the lowest value (2 days after operation) indicating recovery.