During the therapy, the patient put on a virtual-reality helmet that showed virtual jets flying over the towers and crashing into them with animated explosions and sound effects.

• 治疗过程中，患者戴上虚拟实境头套，看著虚拟飞机飞到世贸中心上空，然后撞毁在世贸中心上头，程式还配上爆炸动画以及音响效果。