Barbara J Sahakian is Professor of Clinical Neuropsychology at the Department of Psychiatry, University of Cambridge School of Clinical Medicine and Honorary Consultant Clinic Psychologist at Addenbrooke's Hospital. She has an international reputation in the fields of cognitive psychopharmacology, neuroethics, neuropsychology, neuropsychiatry and neuroimaging. She is particularly interested in the training of 21st century neuroscientists in neuroethics and in the engagement of the public in science. She is co-inventor of the CANTAB computerised neuropsychological tests, which are in use world-wide. She is probably best known for her research work on cognition and depression, cognitive enhancement using pharmacological treatments, neuroethics and early detection of Alzheimer's disease. Her current programme of research, funded by the Wellcome Trust and Medical Research Council, investigates the neurochemical modulation of impulsive and compulsive behaviour in neuropsychiatric disorders, such as unipolar and bipolar depression and attention deficit hyperactivity disorder. Professor Sahakian is a Fellow of Clare Hall and Bye-Fellow of Christ's College. She is a Fellow of the Academy of Medical Sciences, and has also been awarded the Distinguished Scholars Award for 2009 from the University of Pennsylvania.