Let me just say, autism spectrum disorders are not purely neurological like the above imply, but are developmental disorders. Bipolar can present in an individual at the same time as an autism spectrum disorder. Aspergers diagnosis is a high functioning individual who usually can not process social cues. Does it happen with dogs? Hard to say with their nature being that of a beast with teeth.
Paul15, if you know psychiatrists who doubt that Aspergers is real, I hope their business is pretty poor. Their education certainly is.