I hope this is not too late for you I have had some trouble getting my login sorted to reply. Have you contacted the special interest group for learning disabilities ACPPLD they can be found throught the CSP web site. Also there is a bloke called Eddie Andserson based in Yorkshire who has done a lot of work in reboud therapy.
I would be very interested to know how you get on and in having a copy of your reference list if you are willing to share it.
I hope htis is of some use to you.
Gill