The doctor treating 'Robert' says that over 50 days of memory loss is extremely rare and throughout his whole career he's never met someone with no memory at all.
Dr Manaan Kar Ray say the Autobiographical Memory - which incorporates memories of friends, family, and experiences - makes up the 'building blocks' of our existence.
The medical team have taken the man to the town centre of Peterborough where he was found and also to Wisbech, an area with several Eastern European communities, as he has a slight accent.
But doctors say that even if he's identified, the process to bring back his memory will be just beginning.
More top news
There's a happy ending for a dog whose abandonment was captured on CCTV in Peterborough after an RSPCA appeal found her a new owner.
A Sandwell man who stabbed his partner of 20 years to death following an argument has been convicted of her murder.
The incident, in which it is believed a man attempted to take a child from her family, happened at around 3pm yesterday afternoon.