sentences:  Transcranial magnetic stimulation
  
  Transcranial magnetic stimulation (TMS), also known as repetitive transcranial magnetic stimulation (rTMS), is a noninvasive form of brain stimulation in which a changing magnetic field is used to cause electric current at a specific area of the brain through electromagnetic induction.An electric pulse generator, or stimulator, is connected to a magnetic coil, which in turn is connected to the scalp.