Deep brain stimulation (DBS) is approved and funded in Australia for the treatment of Parkinson’s disease, essential tremor and dystonia. DBS is approved but not yet funded for use in epilepsy and obsessive compulsive disorder. DBS can be applied to many different ‘targets’ in the brain – each yielding different effects. The choice of target depends on the condition being treated and the most prominent symptoms. DBS is not a cure for any condition. The aim is to improve quality of life.