Magnetism on the brain - Researchers probe transcranial magnetic stimulation

Transcranial magnetic stimulation is being investigated as a possible non-invasive therapeutic alternative to electroconvulsive therapy for depression. The technique uses a magnetic coil housed inside a paddle that is held near the scalp. The coil produces a magnetic field that induces small electrical currentswithin the brain and can either excite or suppress neurons directly beneath the paddle. Clinical trials are currently underway for conditions such as Parkinson disease and cerebral palsy.