Transcranial magnetic stimulation (TMS): Using a figure-of-8 shaped electromagnetic coil, a rapidly changing (1Hz) magnetic field is applied to the scull over the target stimulation site (Broca Area's homologue in the non-dominant hemisphere, non-dominant BA45). At a frequency of 1Hz, these currents have been shown to interfere with normal neuronal activity by down regulating it. The suppressive effect of 20 minutes of 1Hz rTMS with a stimulation intensity that would elicit muscle contractions (motor evoked potentials, MEP) when applied over the motor cortex (resting motor threshold, RMT) lasts about 45 minutes. SLT sessions will be given immediately following the stimulation procedure. For sham-stimulation, the coil will be placed over the inter-hemispheric fissure at the vertex and stimulation will be performed with low intensity (10% RMT). This will cause similar skin sensations as real stimulation but will not induce currents in language relevant areas.