Fig. 1.

Phantom hand motor control was impaired and related to chronic phantom limb pain and cortical sensorimotor phantom hand representation. (A) Amputees were slower in performing the motor execution task with their phantom hand, both compared to their intact hand and to the non-dominant hand of controls. (B) Amputees experiencing worse chronic PLP took longer to perform the finger-tapping task with their phantom hand (r = .57, p = .03). (C) Amputees that took longer to perform the finger-tapping task with their phantom hand showed stronger activity in the primary sensorimotor phantom hand cortex when moving their phantom hand (r = .66, p = .01). Asterisks denote p < .001. Response time is shown in seconds. Error bars indicate the s.e.m.