Trauma can be the cause in forms of PTSD, or somatoform or conversion disorders. We are vulnerable in different ways. What kind of symptoms we get when the burden is too heavy and the motor is too small, we do not choose. If you want to know more go to http://hsc.usf.edu/COM/epilepsy/PNESbrochure.pdf
This is a really great question behaviorally. The aspect of seizure is an autonomic defense aspect within the nervous system. It deals with foundational Freud and the theory of id, history, and identity that is associated to long term memory and the subconscious level of self identification. Hypothetically there is a communication problem neurologically within a sufferer causing epilepsy (i.e.. split brain surgery). On non epileptic seizures on a forensic level and terrorism associative aspect of "brain washing" and ritualistic enslavement, abusive behaviors or pursuit "dreams" are realized by a union aspect (i.e. promiscuity) and the different biological aspects in neurological bonding falls into points of "compliance" where recidivism in corrections is a major aspect of non epileptic seizures. In old school costa nostra, (organized crime) you are told after being made, (operant conditioning) that you can never leave the "family". Here if a member decides to "go straight" or discontinue "services" to the family, the biological "ameba" points within the body (biological weaponry) (ex. cut in illicit drug distribution) as well as chemistry exchange from intercourse (prostitution) is stimulated to destroy psychoanalytic history in the sub conscious, therefore the self recognition of oneself is destroyed with incriminating aspects of short term memory where hypothetically if the history (self perception/cognition) is destroyed the terror of becoming what is most feared causes autonomic retaliation and short term amnesia after the initial seizure or episode. This is why in military training it is significant to never underestimate the enemy. Muster gas can trigger a non epileptic seizure destroying synapse pathways in the neurology of the sufferer. This is also reactive behavior for those who have aspects of defense from the initial attempt at neurological damage. (Malpractice, attempted homicide/murder in degrees through sexual oppression and defamative points within a community)
Hi Kong, very interesting and relevant question. Psychogenic nonepileptic seizure mainly because of emotional and mental stress. It needs to be differentiated from syncope, TIA and migraine and true seizure. Because prognosis of all these conditions are different. EEG is normal in this situation. Majority of cases it is because of conversation reaction rather than malingering or factitious disorder. It occurs because of childhood mental or sexual trauma. Some times it may be familial also. Thanks