功能性逆行自传失忆通常与物理和/或心理创伤有关。2011年3月11日,在日本发生有史以来最大的地震,和随后的巨大海啸摧毁了日本北部的太平洋沿岸。本病例报告描述一个病人患有逆行episodic-autobiographical失忆一生,坚持甚至超过五年之后的灾难。一个日本人,想必在他四十多岁,2016年4月有警察保护,但无法回应关于他自己的名字。他失去了他的个人身份信息,他的记忆就完全失去了,直到2011年3月11日灾难。他是灾难后能够回忆起他的生活,和语义记忆和社会能力在很大程度上保留了下来。体检执行2016年11月1日证实,他醒着,警惕,和面向时间,地方,人(本人除外)。一般的身体和神经系统检查并没有发现病理结果。他也经历了一些与创伤后应激障碍(PTSD)相关症状,如侵入性思想,倒叙,噩梦。没有检测到异常的生化试验和脑磁共振成像(MRI)。 Physicians and other professionals who take care of victims of disaster should be aware of dissociative spectrum disorders, such as psychogenic amnesia.
仔细的体检执行在一个半小时导致以下结果。病人是一个骨瘦如柴的中等身材的人,与一个真诚和诚实的灵魂的印象。他的记忆完全失去了直到2011年3月11日,当他发现自己趴在了墙下的一所房子。他在工作人员的协助下堆残骸的邻居,他跟随其他患者从灾难中喊着“逃跑!海啸来了!“对于他的生活。他认识到,一个大地震发生了。不确定他是否失去了知觉在堆残骸,但周围的景观完全陌生的他,他意识到他对自己的回忆。他在收容所待了几天,他注意到这个地方名叫陆前高田市,岩手县,最广泛的损害了城市的灾难。他被一名精神病医生或心理学家救援队的给了他一个医疗证书表明他完全失忆症。 Because he felt nothing around him was familiar to him and the shelter became too crowded with sufferers, he started to move to other shelters one by one. In all shelters in which he stayed, however, he found no acquaintance and nobody knew him. Finally, he went out of a shelter and started his long journey for five years to south on foot. He was hired as a day laborer engaged in restoration construction and lodged at all-hours Internet cafes. He saved some money and at last arrived at Kumagaya, a city located in northern part of Saitama prefecture, where he fell victim to a robbery. The robber extorted his wallet containing all money and the medical certificate from him and brought him by automobile to mountain solitudes, where he was released. He was wandering mountains for several days without food until the above-mentioned protection by police.