another way to put it is there is a 'gross' spectrum of ASPD, PDD and Schizophrenia and probably bi-polar but I don't have much data on bi-polar.
Basically people with ASPD have MORE cognative empathy (that is people centric, what I call a sense of self, and it really is a sense of self neurologically) than NT people and less affective empathy (that is when asked to think about a feeling)... and PDD people have less cognative empathy (so to put it crudly are more object centric than 'people' centric) but have greater affective empathy.
No one in study about co-morbid diagnosis has a PDD and ASPD together, their mutually exclusive.
Also schizophrenics have a different variant, they are self centric, that is they believe themselves and things that go on in their mind EVEN IF THEY AREN'T REAL or they are categorically informed so.
The DSM says you can't have schizophrenia and a PDD and people with ASPD don't get schizophrenia though people going through a psychosis (that can include non schizophrenics, you need two kinds of psychosis to get a schizophrenia diagnosis) have more aspd traits. And there is neurology that relates that back to the different types of empathy i have mentioned, so the sense of self.
anyhow that object centric, people centric, self centric can be picked up in language useage... the first is often called literal, the second is often called poetic or manipulaticve the last delusional.
NT people actually do a bit of everything, tending towards the people centric when I speak to them, but they do have insight, so it's not mall adaptive like it is in a personality disorder.
My origional aims where to help prevent miss-diagnosis and potentially aid better counselling... but it looks like it may work to help distinguish the actual nature of the conditions or a persons (some are complex so may actually be two conditions that just look similar), down to a neurological and developmental level. That could help, with for instance, targeted medication and new developments in medication.
I am absolutly against a cure for any of those conditions especially as it's not possible to tell how they relate to human evolution especially social and technological evolution. Personally I don't think a 'cure' is even possible since the conditions are organic/biological.