What are the main causes of personality change in patients with epilepsy?

  Personality changes are usually more prominent of the original pre-morbid personality traits, such as frugality becomes stingy, confidence becomes pompous, hospitality becomes promiscuous, daring becomes aggressive or changes in the opposite direction, such as diligence becomes lazy, politeness becomes irritable, etc. Personality traits are psychotic (i.e., lack of empathy, eccentric, sensitive, suspicious) and neurotic (i.e., emotionally unstable, irritable, overreactive to stimuli). Lack of stable personality structure, immaturity, and good impulsive characteristics.  Epileptic personality changes are associated with the course of seizures and grand mal seizures. This is because frequent seizures over a long period of time, especially grand mal seizures, result in brain tissue damage; at the same time, the consequences of the vicious cycle of brain electrophysiology and the effects of seizures on the patient’s learning and other aspects further accelerate the formation of epileptic personality changes.