Wellcome Trust Centre for Neuroimaging, Institute of Neurology, University College London, London, United Kingdom.|Wellcome Trust Centre for Neuroimaging, Institute of Neurology, University College London, London, United Kingdom.|Wellcome Trust Centre for Neuroimaging, Institute of Neurology, University College London, London, United Kingdom.|Wellcome Trust Centre for Neuroimaging, Institute of Neurology, University College London, London, United Kingdom.