Understanding the structure of autobiographical memories: A study of trauma memories from the 1994 Rwandan genocide

How do we remember traumatic events, and are these memories different in individuals who experience post-traumatic stress? Some evidence suggests that traumatic events are mnemonically enhanced, or include more episodic detail, relative to other types of memories. Simultaneously, individuals with post-traumatic stress disorder (PTSD) have more non-episodic details in all of their memories, a pattern hypothesized to result from impairment in executive function. Here, we explore these questions in a unique population that experienced severely traumatic events more than 20 years ago - individuals who lived through the 1994 genocide in Rwanda. Participants recalled events from the genocide, negative events unrelated to the genocide, neutral events, and positive events. We used the Autobiographical Interview method to label memory details as episodic or non-episodic. We found that memories from the genocide showed robust mnemonic enhancement, with more episodic than non-episodic details, and contained more details overall than any other memory type. This pattern was not impacted by post-traumatic stress. Overall, this study provides evidence that traumatic events create vivid long-lasting episodic memories, in this case even more than 20 years later.

A multidimensional model of resilience: Family, community, national, global and intergenerational resilience

This paper aims to unpack the empirical and theoretical complexity that surrounds 'resilience', with particular attention to its application to war-affected children and youth. We expand current conceptual frameworks to adopt a more inclusive and intergenerational approach that accounts for the added layers of national, global and intergenerational resilience, arguing for greater recognition of the shared or relational nature of resilience. We introduce a multidimensional model of resilience that integrates the macro- and micro-level to include resilience-enabling systems at the family, community, national, global and intergenerational levels. The purpose of this conceptual framework is to provide a more holistic and integrative model that combines both bottom-up and top-down approaches to cultivating resilience, highlighting the power of interconnections across interrelated systems and social structures. Using the case example of post-genocide Rwanda and the experiences of children born of genocidal rape, we apply our multidimensional model to illustrate concrete examples of resilience-enabling systems at the family, community, national, global and intergenerational levels. Our proposed multidimensional model as applied to youth born of genocidal rape in Rwanda reveals key gaps in their surrounding social ecological systems, highlighting the importance of coordinated and mutually-reinforcing efforts to engender resilience across all dimensions concurrently. We conclude with a set of policy and practice implications, directions for future research, and lessons-learned on how best to champion the resilience of this unique and important population of children.

Histology and Raman spectroscopy of limed human remains from the Rwandan Genocide

The Murambi Genocide Memorial Centre is one of the major centres in Rwanda that commemorate the 1994 Rwandan genocide. Seventeen months after the genocide, about 1000 excavated human remains were put on display in Murambi Technical School. Repeated efforts were made to desiccate the human remains with lime for educational reasons. The aim of this study was to assess their state of preservation and understand the extent of degradation of the tissue. Limed soft tissue samples from four individuals were examined with light and electron microscopy, and subjected to histological analysis. Raman spectroscopy at 785 nm and 1064 nm provided information about the impact of environmental conditions on the extent of deterioration to these samples, the presence of organics and the conversion of the associated lime from calcium hydroxide to calcium carbonate. While visual degradation of the bodies in Murambi has been reported, this study confirms deterioration at a microscopic and molecular level. Both histology and Raman spectroscopic analysis revealed that the limed bodies in Murambi were deteriorating at the time the samples were collected. The results of this study will inform future decisions regarding the long-term conservation of those human remains.