[1] Natl Hosp Neurol & Neurosurg, Neuropsychiat Dept, Queen Sq, London, England
[2] UCL Queen Sq Inst Neurol, Dept Clin & Movement Neurosci, London WC1N 3BG, England
[3] UCL, Wellcome Ctr Human Neuroimaging, London WC1N 3BG, England
[4] Max Planck Univ Coll London, Ctr Computat Psychiat & Ageing Res, London WC1B 5EH, England
[5] FND Hope UK, Banbury, England