As the victim continues to lose control of their bodily functions, they will involuntarily salivate, lacrimate, urinate, defecate, and experience gastrointestinal pain and vomiting.
He noticed that the dogs tended to salivate before food was actually delivered to their mouths, and set out to investigate this psychic secretion, as he called it.
It is presumed that one would also salivate while crying due to the inverse improper connection of the lacrimal nucleus to the salivary glands, but this would be less noticeable.