Bj. Roth et al., IN-VITRO EVALUATION OF A 4-LEAF COIL DESIGN FOR MAGNETIC STIMULATION OF PERIPHERAL-NERVE, Electroencephalography and clinical neurophysiology, 93(1), 1994, pp. 68-74
The performance of a 4-leaf magnetic coil was evaluated during magneti
c stimulation of a peripheral nerve in vitro. The site of stimulation
was below the coil center, and a 90 degrees rotation of the coil was e
quivalent to a change in current polarity. A hyperpolarizing magnetic
stimulus failed to slow or block a propagating action potential.