The project makes use of a relatively simple technology implemented in a highly practical way.  Some patients felt disconcerted, eg when the doctor's head disappeared from the screen in order to show diagrams such as family trees, promoting a feeling of being alone in the room, but this problem may be lessened by the eventual incorporation of a 'split-screen' where gene diagrams can be displayed beneath the doctor's image.  It may initially feel strange talking to a screen in an empty room but most patients visibly relaxed after a while.  Participation in the scheme is always voluntary, although nobody so far has refused consent.  UPDATE AUGUST 2003:  There are normally at least 2 and up to 5 patients present, with genetic medical staff and nurse specialists from other Units observing.  Patients are informed who is in the room.  Patients are asked to give written consent and informed that sessions were not being recorded.