violence, that she has an obligation to keep the family intact at all cost for the sake of their children, and that she is the only hope for her spouse to change.49 The testimony of another expert witness, Dr. Pajarillo, is also helpful. He had previously testified in suits involving violent family relations, having evaluated "probably ten to twenty thousand" violent family disputes within the Armed Forces of the Philippines, wherein such cases abounded. As a result of his experience with domestic violence cases, he became a consultant of the Battered Woman Office in Quezon City. As such, he got involved in about forty (40) cases of severe domestic violence, in which the physical abuse on the woman would sometimes even lead to her loss of consciousness.50 Dr. Pajarillo explained that "overwhelming brutality, trauma" could result in posttraumatic stress disorder, a form of "anxiety neurosis or neurologic anxietism."51 After being repeatedly and severely abused, battered persons "may believe that they are essentially helpless, lacking power to change their situation. x x x [A]cute battering incidents can have the effect of stimulating the development of coping responses to the trauma at the expense of the victim's ability to muster an active response to try to escape further trauma. Furthermore, x x x the victim ceases to believe that anything she can do will have a predictable positive effect."52 A study53 conducted by Martin Seligman, a psychologist at the University of Pennsylvania, found that "even if a person has control over a situation, but believes that she does not, she will be more likely to respond to that situation with coping responses rather than trying to escape." He said that it was the cognitive aspect -- the individual's thoughts -- that proved all-important. He referred to this phenomenon as "learned helplessness." "[T]he truth or facts of a situation turn out to be less important than the individual's set of beliefs or perceptions concerning the situation. Battered women don't attempt to leave the battering situation, even when it may seem to outsiders that escape is possible, because they cannot predict their own safety; they believe that nothing they or anyone else does will alter their terrible circumstances."54 Thus, just as the battered woman believes that she is somehow responsible for the violent behavior of her partner, she also believes that he is capable of killing her, and that there is no escape.55 Battered women feel unsafe, suffer from pervasive anxiety, and usually fail to leave the relationship.56 Unless a shelter is available, she stays with her husband, not only because she typically lacks a means of self-support, but also because she fears that if she leaves she would be found and hurt even more.57 In the instant case, we meticulously scoured the records for specific evidence establishing that appellant, due to the repeated abuse she had suffered from her spouse over a long period of time, became afflicted with the battered woman syndrome. We, however, failed to find sufficient evidence that would support such a conclusion. More specifically, we failed to find ample evidence that would confirm the presence of the essential characteristics of BWS. The defense fell short of proving all three phases of the "cycle of violence" supposedly characterizing the relationship of Ben and Marivic Genosa. No doubt there were acute battering incidents. In relating to the court a quo how the fatal incident that led to the death of Ben started, Marivic perfectly described the tension-building phase of the cycle. She was able to explain in adequate detail the typical characteristics of this stage. However, that single incident does not prove the existence of the syndrome. In other words, she failed to prove that in at least another battering episode in the past, she had gone through a similar pattern.