Medved Maria I, Hirst William
The New School, New York, NY, USA.
Memory. 2006 Apr;14(3):276-88. doi: 10.1080/09658210500233524.
In amnestics with anterograde amnesia, memories of post-onset autobiographical experiences, if present at all, are typically barren and impoverished. However, there have been sporadic reports of islands of memory--memories that are vivid, detailed, and specific to time and place. The aim of this study was to verify the presence of such memories and examine their incidence rate. Anterograde amnestics were interviewed in their home using a narrative interviewing strategy with a view to describing memory in everyday life. Each autobiographical memory of a post-onset event was coded for quantity-length, and quality-episodicity. In just over half of the amnestics (8 out of 14), a memory that was lengthy, rich in personal details, and localisable was recollected. The quantitative and qualitative aspects of these island memories were significantly different from the other autobiographical memories that the amnestics supplied. These memories were at odds with what would be expected on the basis of their performance on standardised memory instruments. Our findings suggest there is occasionally more variability in remembering of autobiographical experiences in some amnestics than has traditionally been believed.
在患有顺行性遗忘症的遗忘症患者中，发病后对自传式经历的记忆（如果有的话）通常是空洞且匮乏的。然而，零星有关于记忆岛的报道——这些记忆生动、详细，且特定于时间和地点。本研究的目的是验证此类记忆的存在并检查其发生率。采用叙事访谈策略，在顺行性遗忘症患者家中进行访谈，以描述其日常生活中的记忆。对每个发病后事件的自传式记忆从数量（长度）和质量（情节性）方面进行编码。略超过半数的遗忘症患者（14人中的8人）回忆起了一段冗长、富含个人细节且可定位的记忆。这些记忆岛的定量和定性方面与遗忘症患者提供的其他自传式记忆显著不同。这些记忆与基于他们在标准化记忆测试中的表现所预期的情况不符。我们的研究结果表明，在某些遗忘症患者中，对自传式经历的记忆偶尔比传统认为的更具变异性。
