Please check out this link to read a few words about how service dogs are being used for a wider range of support than just those with physical disabilities and medical issues. They are now providing support for traumatic emotional situations such as  testifying in court as well as to individuals with psychiatric illnesses.
You will likely need to copy and paste the link into your browser.
http://alert.psychiatricnews.org/2011/08/guide-dogs-for-mind-gain-popularity.html?spref=fb
