Have scouted through this thread but just wanted to put something down for you. The attachment theory comes from a bloke called Bowlby, you can google him and you will get information. However, Social Services should also consider Winnicott's "good enough mother" - you can also google Donald Winnicott.
However, I have a personal bugbear about labelling mothers/children with this disorder if there are special needs - I think you should try and get hold of some research involving 55 families from Van Ilzdendoorn et al (Holland): Parental Sensitivity and Attachment in Children with ASD: Comparison with Children with Mental Retardation, with Language Delays; with typical Development (2007) has found:
·Attachment Theory is unable to explain the ?disordered attachments? in children with a major social impairment (asd) ? (Mary Ainsworth?s Strange Situation Procedure was used (SSP), ie the strange room, the stranger and the coming and going of the care giver).
·Parents do not cause disordered attachment in their ASD children.
·Attachment based therapies are inappropriate and counter-productive for asd?s.
This study in Holland showed that 40% of the children who took part were ?attachment disorganised? although no connection was found between ?parental sensitivity and attachment security in the group of children with asd? and therefore attachment criteria for ?sensitive parenting? may be inadequate for developmental and neurological problems in children.
Van Ilzdendoorn (2007) concluded that children with less severe asd predicted more attached security, however overall the paper challenged the validity of Bowlby?s theory.
Interestingly, a further study was undertaken by Rutgers (2007) Autism, Attachment and Parenting: A Comparison of Children with ASD, Mental Retardation, Language Disorder and Non Clinical Children (89 families took part) and the outcome was that, although, children with asd were related as being less secure compared to the other clinical and normal comparison groups, it stated that parents coped remarkably well with the challenges of raising a child with asd.
I hope it helps.