1. Stroke Research Group, Department of Brain Repair and Rehabilitation, UCL Institute of Neurology, National Hospital for Neurology and Neurosurgery, London, UK.
2. Department of Psychology, University of Crete, Rethymno, Greece.
3. Department of Neurology, Medical School, National and Kapodistrian University of Athens, Eginition Hospital, Athens, Greece.
4. Division of Psychology and Language Sciences, Department of Linguistics, University College London (UCL), London, UK.
5. Institute of Neurology, The National Hospital for Neurology and Neurosurgery, University College London (UCL), London, UK.