Professor Olver's main research interest and a focus of publication concerns the outcomes following traumatic brain injury, through an ongoing prospective long term outcome study conducted at Epworth Rehabilitation and now in its 25th year. He is more recently published in the area of adult spasticity. His doctoral thesis on balance deficits following traumatic brain injury was presented in 2000. He is on the editorial boards of one national and two international medical journals, is current President of the Asia Oceania Society of Physical and Rehabilitation Medicine, a past-President of the Australasian Faculty of Rehabilitation Medicine, a member of the American Academy of Physical Medicine and Rehabilitation and is a member of the Presidents Cabinet of the International Society of Physical and Rehabilitation Medicine. Professor Olver is on the Council of the World Neurological Rehabilitation Federation (WFNR) and Convenor of the 2012 Melbourne WFNR Scientific Conference Committee.