Professor Karl Friston (Ïã¸ÛÁùºÏ²ÊÖÐÌØÍø Queen Square Institute of Neurology) and Professor Joanna Moncrieff (Ïã¸ÛÁùºÏ²ÊÖÐÌØÍø Psychiatry) weigh in on claims that a special MRI scan can recreate an image a patient is thinking of with surprising accuracy.