Earthquake Trauma, Overgeneral Autobiographical Memory, and Depression Among Adolescent Survivors of the Wenchuan Earthquake

The relationship between childhood interpersonal and non-interpersonal trauma and autobiographical memory: a systematic review

Childhood trauma can have negative effects on several domains of mental functioning, including Autobiographical Memory (AM). Conflicting results emerge in the scientific literature regarding the effects of childhood trauma on AM. In this review, we explored the relationship between the childhood trauma and AM, classifying childhood trauma as interpersonal, non-interpersonal and overall (interpersonal and non-interpersonal). We carried out a systematic literature review, following the guidelines of the Preferred Reporting Items for Systematic Reviews and Meta-analyses (PRISMA statement). From searching the PubMed, Scopus, and Web of Science databases, we identified 48 studies conducted from 2014 to 2023, which were included when they: (a) were written in English, (b) investigated the relationship between AM and childhood trauma, (c) included a sample of children, adolescents, or adults who had experienced childhood interpersonal and/or non-interpersonal trauma. Of the 48 eligible studies, 29 referred to trauma of an interpersonal nature, 12 to trauma of a non-interpersonal nature, and 7 to overall trauma. Regarding the relationship between childhood trauma and AM, 24 studies found a negative relationship between childhood interpersonal trauma and AM; among the articles on non-interpersonal trauma, 10 studies found no relevant relationship; in the studies on overall trauma, 4 articles found negative relationship between overall trauma and AM. The literature explored in our systematic review supports the prevalence of a negative relationship between interpersonal childhood trauma and AM. This relationship is present regardless of psychiatric disorders (e.g., Depression, Post Traumatic Stress Disorder, and Personality Disorders), and in the presence of the latter, AM results even more fragmented. Future research should use more accurate methodologies in identifying and classifying childhood trauma in order to more precisely determine its effect on AM.

A Meta-Analysis of the Influence of Cue Valence on Overgeneral Memory and Autobiographical Memory Specificity Among Youth

Overgeneral memory (OGM), or difficulty recalling specific memories when recounting autobiographical events, is associated with psychopathology. According to functional avoidance theory, OGM-or reduced autobiographical memory specificity (AMS)-may serve as an emotion regulation strategy that aids in the avoidance of painful, negative memories (Sumner, 2012; Williams et al., 2007). Some researchers argue that there may be a valence effect for OGM, such that there is a higher frequency of overgenerality when recalling negative memories compared to positive memories. Although not supported among adults, valence effects may be present among children and adolescents if OGM initially develops in response to negative cues and then generalizes to all memory recall over time. This meta-analysis examined differences in child and adolescent OGM and AMS based on cue valance; standardized mean differences between negative and positive valence cues for OGM and AMS indices were calculated. Following PRISMA guidelines, a systematic literature search resulted in 26 studies assessing OGM and 30 assessing AMS. There was a significant effect of valence on OGM (d = 0.17, p = 0.01) and AMS (d = -0.20, p = 0.01). There was a higher frequency of overgeneral responses to negative cue words than positive cue words. Similarly, there was a higher frequency of specific responses for positive cue words than negative cue words. Subgroup analyses considering differences in valence effects by participant age (childhood vs. adolescence), sample type (clinical vs. community), and task instructions (verbal vs. written) were not significant. Theoretical advancements for our understanding of OGM and AMS and clinical implications are discussed.

Effectiveness and mechanism of a 4-week online self-help mindfulness intervention among individuals with emotional distress during COVID-19 in China

Background

Many people suffered from emotional distress especially during the COVID-19 pandemic. In order to alleviate emotional distress, more accessible psychological intervention programs, such as online intervention programs, are needed. The study aimed to investigate the efficacy and the potential mechanism of a 4-week, online, self-help mindfulness-based intervention to manage emotional distress during the COVID-19 pandemic between February 3 and May 20, 2020.

Methods

A total of 302 individuals with high emotional distress completed a self-help mindfulness course, which lasted 30–60 min per day for 28 consecutive days. Participants who registered in the program later were included in the analyses as the control group (n = 315). Levels of mindfulness, perceived stress, emotional distress, anxiety and depression were assessed at baseline(T1), week 1(T2), week 2(T3), week 3(T4) and week 4(T5).

Results

Significant Group by Time interaction effects were found on mindfulness, perceived stress, emotional distress, anxiety and depression (p < 0.001). Compared to the control group, the intervention group had a greater increase in changes of all outcome variables (p < 0.001). Random intercept cross-lagged analyses showed that compared with control group, mindfulness at T2 and T4 negatively predicted stress at T3 and T5, and mindfulness at T2 and T4 negatively predicted depression at T3 and T5 while depression at T3 predicted mindfulness at T4 in the mindfulness group.

Conclusions

The results suggest that a 4-week self-help online mindfulness intervention improved mindfulness and reduced stress, emotional distress, anxiety and depression symptoms. Compared to the control group, changes in mindfulness preceded changes in stress, and mindfulness and depression reciprocally influenced each other during the intervention.

Trial registration Chinese Clinical Trial Registry: ChiCTR2000034539. Registered 9 July 2020—Retrospectively registered, http://www.chictr.org.cn/edit.aspx?pid=55721&htm=4.

Supplementary Information

The online version contains supplementary material available at 10.1186/s40359-022-00831-7.