Effect of a total transection of the spinal cord at the C2 level on the MEPdia upon stimulation at −6 mm from Bregma and at the C1 spinal cord.

<p>A) Representatives MEPdia (black arrows) obtained after a single TMS pulse at −6 mm from Bregma (top trace) and at C1 spinal cord site (bottom trace) in the “Unshielded” coil group before complete C2 spinal cord transection. B) Representatives MEPdia (black arrows) obtained after a single TMS pulse at −6 mm from Bregma (top trace) and at C1 spinal cord site (bottom trace) in the “Unshielded” coil group after the complete C2 spinal cord transection. Note the absence of MEPdia when the stimulation is applied at −6 mm from Bregma, and the presence of an enhanced MEPdia when the C1 spinal cord is stimulated.