Figure 3.

The total distance moved partially recovers after spinal cord transection. a, Swim track of an unlesioned fish. b, c, Swim tracks of the same fish, 1 week (b) and 6 weeks (c) after spinal cord transection, show recovery of total distance moved. d, The total distance moved at 6 weeks postlesion is significantly different from values at 1 week postlesion and from values for fish in which regeneration was mechanically blocked at 6 weeks postlesion (^*p < 0.05; ^**p < 0.01). Values for fish in which only the muscle tissue, but not the spinal cord, was cut (sham) is indicated at 10 weeks postlesion. Error bars represent SEM.