是一种应激障碍，最好解释为过度活跃的杏仁核。杏仁核是大脑中最基本的动物性部分，它被设计成通过激活身体的应激反应来对潜在的危险做出快速反应。它会引起对小的触发因素的敏感和快速反应，比如烟味、警笛声或突然的大噪音，释放的压力荷尔蒙会加快心率，让大脑专注于潜在的危险。当大脑寻找潜在的威胁时，压力反应会引起对周围环境的高度警惕，从而限制了一个人吸收新信息和从压力产生的狭隘视野中学习经验的能力。前额皮质负责执行决策，决定如何对触发事件做出反应，并判断这是否是一个错误警报。如果杏仁核的反应足够强烈，它会压倒整个系统，前额皮质的执行功能也会被覆盖。在这一点上，个体“离开他们的感官”，基本上诉诸于条件反射。在受到创伤的个体中，杏仁核已经学会了高度反应，更容易被触发，前额皮质更难控制。大多数现代创伤治疗的重点是通过给予患者应对技能和处理原始创伤，以防止未来不必要的应激反应，来稳定杏仁核。治疗教会受害者通过挑战受害者在面对创伤和反复的压力反应时产生的新观点来应对。
澳洲护理学论文代写:杏仁体
is a stress disorder that is best explained as an overactive amygdala. The amygdala is a more basic animalistic part of the brain that is designed to react quickly to potential dangers by activating a stress response in the body. It causes sensitivity and quick responses to small triggers such as the smell of smoke, a siren or a sudden loud noise, the stress hormones released increase heart rate and focus the brain on potential dangers. The stress response causes heightened vigilance of one’s surroundings as the brain looks for potential threats, limiting one’s ability to take in new information and learn from experience caused by the tunnel vision that stress creates. It is the prefrontal cortex that makes the executive decision of how to respond to the trigger and determine if it is a false alarm or not. If the amygdala reacts strongly enough, it can overwhelm the system and the executive function of the prefrontal cortex is overridden. At this point the individual “takes leave of their senses” and basically resorts to conditioned responses. In a traumatized individual the amygdala has learned to be hyper reactive, being triggered more easily, it is harder for the prefrontal cortex to control. Most modern trauma therapies focus on calming the amygdala by giving the person coping skills and processing the original trauma to prevent future unnecessary stress responses. Therapies teach victims to cope by challenging the victims new outlook developed in reaction to trauma and repeated stress responses.
