Dysfunction causing different forms of obsessive compulsive disorder, which results in intrusive thoughts, images, and compulsions that sometimes are of an aggressive nature. Some dysfunction results in a decreased bonding capacity. Increased startle reflex - particularly increased acoustic startle. Hypervigilance and paranoia. Delusions and hallucinations.
Some patients acquire impairment in their ability to regulate the arousal level of an emotion.
As a result, emotions such as anger may be all or none, excessively intense, and not proportionate to the current situation. This also leads to a decline in the ability to integrate concurrent emotions that exist either within the patient or in a relationship with another person. This symptom may in turn intensify other psychiatric syndromes such as post-traumatic stress disorder, dissociative disorders, borderline personality, and narcissistic personality disorders. Any combination of the above impairments can result in aggressive behavior. When these changes occur in a mature adult, the patient is surprised by the symptoms - they recognize it is pathological and attempt to compensate for the deficits.