by googling the words reactive attachment disorder you will find this link where you can find information on what attachment disorder (or if in america what america now calls reactive attachment disorder ) is....

CEBC » Search ? Topic Areas ? Dsm 5 Criteria For Reactive Attachment Disorder Rad

short version...this disorder label is now mostly just for babies, toddlers, pre school and elementary school aged children who have trouble bonding with adults and peers.

information on what america now calls dissociative disorders can be found in the links at the bottom of my post.

the difference in the two is reactive attachment disorder is one of many mental disorders in the category of trauma and stressor related disorders where as dissociative disorder is a category label that contains many mental disorders.

reactive attachment disorder is not bonding with others where as dissociative disorders contain dissociative symptoms like feeling numb, spaced out and disconnected.