I believe they are the same thing, except for political correctness. The wording was changed from "insanity" to "mental defect or disease." I imagine it was an effort to treat inmates with mental illness with more dignity as well as to reduce the stigmas associated with the "insane."
With a great mental insanity.
OCD cannot be classified as insanity. It IS a mental problem but not as severe as schizophrenia for example.
Yes, insanity is a legal term meaning "unable to tell right from wrong", mental disorder is a medical term referring to a large class of different illnesses.
The legal insanity will look at if the person was aware of what they were doing in the crime. Mental illness can encompass many other issues outside of committing a crime.
Forbes Benignus Winslow has written: 'On the preservation of the health of body and mind' 'On the incubation of insanity' 'Lettsomian lectures on insanity' -- subject(s): Mental illness, Jurisprudence, Insanity
David W. Heron has written: 'A first study of the statistics of insanity and the inheritance of the insane diathesis' -- subject(s): Human Heredity, Insanity, Mental illness, Insanity (Law)
Your mental health (or mental illness) is not a matter of public record unless you have been charged with a crime and have pleaded not guilty by reason of insanity.
The insanity defense is alright as long as it is not used in just any case situation involving a murder. An insanity defense may allow a defendant who is mentally competent and has no history of mental illness to fake a specific mental disorder like Dissociative Identity Disorder (like in a Law & Order SVU episode titled "Alternate") and use it as a way to plead "not guilty by reason of insanity."
E. C. Spitzka has written: 'Insanity' -- subject(s): Mental illness, Mental Disorders
Insanity is a general term for a semi-permanent, severe mental disorder. The concept has been used in a number of ways historically. Today it is most commonly encountered as a generic informal term, or in the narrower legal context of criminal insanity. In the medical profession, it is nowadays avoided in favor of specific diagnoses of mental illness.
The noun 'insanity' is an abstract noun as a word for severe mental illness, a deranged state of mind; a word for something that is foolish or unreasonable; a word for a concept.