Oh, it is just "feelings. In actuality all mental illness is due to neurology or neruro-chemistry in the brain is not working properly and much of this is due in some way due to a brain that has suffered damage thru experience on some neurological level. Incidentally since you mentioned "sad" Depression has been shown to be caused by neuroligical damage in the frontal cortex. This essensally means that most mental illnesses are actually physcal damage to structures in the brain or mal-adaptations in the process of neuro -chemistry.Those are feelings you know, and they would appear to be negative ones hence the bad.
It was mentioned in the article that the dog recognizes that he is about to go into a panic attack and then places its upper body against the chest this would be enough for the PTS vet to brace for the panic attack and would not act out.Now that you have done all of this can you explain to me how a dog stops most of them? Does the dog have an infaltable shrink couch he carries around so he can address the trauma when it occurs? Does he have a drum of anti-psychotics to drink out of when the guy startys getting all panicky? Does the dog jump on him and give him a relaxing massage when he starts to fell these feelings? In case he falls asleep at the table was the dog trained at the inception school for dream intervention to come in and rescue him from his nightmare? I am all for shrink, and meds, and counseling to help, but the owner was right. If you cannot handle eating breakfast without a freakout perhaps you need a bit more than a dog.