Dawn Langdon is Professor of Neuropsychology at Royal Holloway, University of London. Her research work focuses mainly on psychological aspects of MS, especially cognition. She is Co-Chair of the Brief International Cognitive Assessment in MS (BICAMS, www.BICAMS.net), which has 31 countries in the international validation pipeline, 14 of whom have published. Recent work includes Benefits and Risks of MS Medication (BRIMMS), a protocol for presenting the risks and benefits of DMD's to people with MS. She is a Trustee of the UK MS Trust, for whom she authored the online cognition tool for patients StayingSmart (www.stayingsmart.org). She is Co-Chair of MS in the 21st Century, an international collaborative group of people with MS and health professionals (www.msinthe 21st century.com).