Figure 5.
Average control (solid) and conditioned (dashed) H-reflexes for a representative conditioning session of an HRup (left) and an HRdown subject (right). In each subject, task-dependent reflex change is evident: the conditioned H-reflex is larger than the control H-reflex in the HRup subject and smaller in the HRdown subject. Background EMG and M-wave size do not change.