Table 4 Treatment parameters of transcranial magnetic stimulation Parameter Comment Motor Lowest intensity over threshold primary motor cortex to produce contraction of the first dorsal interosseous or abductor pollicis brevis muscle; visual or
electromyographically monitored Stimulus Most common: Left coil dorsolateral location prefrontal cortex (DLPFC) Less common: Right DLPFC, vertex Stimulus pulse(s) or train Intensity 80% to 120% of MT Frequency [less than or equal to]1 to 20 Hz Duration [less than or equal to]1 millisecond Interpulse 50 to 100 interval milliseconds Stimulus 3 to 6 seconds train duration Inter-train 20 to 60 seconds interval Source: Janicak PG, Krasuski J, Beedle D, et al.