What can subjective forgetting tell us about memory for childhood trauma?

Seeing the past in a new light: change in reports of childhood abuse and neglect before and after inpatient psychotherapy and its relevance for change in depression symptoms

OBJECTIVE

As changes in mental representations have been discussed as mechanisms of change in psychotherapy, the question arises whether recollections of childhood abuse and neglect are altered as well and how they relate to symptom changes.

METHOD

Individuals in psychosomatic inpatient treatment (N = 488, 60.5% women) filled out the Childhood Trauma Questionnaire (CTQ) and Patient Health Questionnaire (PHQ-9). Changes in both were investigated with correlations and t-tests. Linear regression analysis was used to test whether CTQ changes predicted symptom changes. Network analysis was performed to ascertain structural connections between somatic and emotional-cognitive depression symptoms and CTQ subscales before and after treatment.

RESULTS

After treatment (duration in days: M = 52.83, SD = 20.94), patients reported fewer depression symptoms (d = 0.84), while CTQ scores increased slightly (d = 0.11). Changes in the CTQ predicted recovery from depression symptoms in a statistically significant way (β = .133, p = .001). We did not observe changes in the overall network structure between baseline assessment and discharge.

CONCLUSION

The findings suggest that the evaluation of past experiences can change over multiple weeks of psychotherapy. Further, these updated mental representations, indicating a greater recognition of past adversity, may contribute to symptom relief.

Memory and Forgetting

PURPOSE OF REVIEW

I summarize recent developments in understanding the phenomenology of memory in PTSD, describe the most prominent theoretical models, and outline new forms of treatment aimed at modifying the traumatic memory.

RECENT FINDINGS

Intrusive memories that have the quality of being relived in the present have been highlighted in ICD-11. Debate over whether trauma memories are disorganized has led to a distinction between global narratives that are usually well rehearsed and episodic memories of the most frightening moments when disruptions and fragmentation may occur. Attempts to prevent the initial consolidation of trauma memories have promise in prevention but face practical difficulties. Theoretical developments have led to a number of promising treatments for established PTSD including pre-retrieval propranolol and imagery rescripting. Research has suggested real possibilities to improve the prevention and treatment of PTSD by modifying trauma recall even though the theoretical basis for these interventions remains controversial.

Lifetime Abuse and Quality of Life among Older People

Few studies have evaluated the impact of lifetime abuse on quality of life (QoL) among older adults. By using a multinational study authors aimed to assess the subjective perception of QoL among people who have reported abuse during the course of their lifetime. The respondents (N = 4,467; 2,559 women) were between the ages of 60 and 84 years and living in seven European countries (Germany, Greece, Italy, Lithuania, Portugal, Spain, and Sweden). Lifetime abuse was assessed by using a structured questionnaire that allowed to assess lifetime experiences of abuse. QoL was assessed with the World Health Organization Quality of Life-Old module. After adjustment for potential confounders, authors found that to have had any abusive experience decreased the score of sensory abilities. Psychological abuse was associated with lower autonomy and past, present, and future activities. Physical abuse with injuries significantly decreased social participation. Intimacy was also negatively associated with psychological abuse, physical abuse with injury, and sexual abuse. The results of this study provide evidence that older people exposed to abuse during their lifetime have a significant reduction in QoL, with several QoL domains being negatively affected.

Simulating Memory Impairment for Child Sexual Abuse

The current study investigated effects of simulated memory impairment on recall of child sexual abuse (CSA) information. A total of 144 adults were tested for memory of a written CSA scenario in which they role-played as the victim. There were four experimental groups and two testing sessions. During Session 1, participants read a CSA story and recalled it truthfully (Genuine group), omitted CSA information (Omission group), exaggerated CSA information (Commission group), or did not recall the story at all (No Rehearsal group). One week later, at Session 2, all participants were told to recount the scenario truthfully, and their memory was then tested using free recall and cued recall questions. The Session 1 manipulation affected memory accuracy during Session 2. Specifically, compared with the Genuine group's performance, the Omission, Commission, or No Rehearsal groups' performance was characterized by increased omission and commission errors and decreased reporting of correct details. Victim blame ratings (i.e., victim responsibility and provocativeness) and participant gender predicted increased error and decreased accuracy, whereas perpetrator blame ratings predicted decreased error and increased accuracy. Findings are discussed in relation to factors that may affect memory for CSA information.

Inconsistent retrospective self-reports of childhood sexual abuse and their correlates in the general population

PURPOSE

Epidemiological research on childhood sexual abuse (CSA) and its consequences in adult life mainly relies on retrospective reports. This study explores their consistency and the correlates of inconsistent CSA self-reports in a random population sample.

METHOD

A stratified subsample of 2,462 subjects (selected from a large-scale (N = 34,267) representative sample of Dutch adults aged 40 and beyond) participated in a two-phase online questionnaire survey on extra-familial CSA which was conducted on a four- to six-week interval. Subjects reporting CSA were overrepresented. Participants with consistent and inconsistent responses were compared with regard to demographics, family background, abuse severity, and clinical characteristics. Potential correlates of inconsistency were identified using logistic regression analysis. An additional questionnaire (Phase III) administered to inconsistent respondents explored possible reasons for their inconsistency.

RESULTS

Of the 1,992 respondents who had reported extra-familial CSA during Phase I, 707 (35.5%) denied this in Phase II. Of the 2,462 respondents in Phase II, 727 (29.5%; 9.2% when considering sample stratification) gave a discrepant answer to the extra-familial sexual abuse item compared to their answers given in Phase I. Reports of less severe abuse, intra-familial CSA, and early parental separation predicted inconsistency. Reasons provided for inconsistency varied from misunderstanding (e.g., reporting intra-familial CSA rather than extra-familial CSA) to emotional motives (e.g., embarrassment, being overwhelmed) or practical considerations (e.g., lack of privacy while filling out the questionnaire).

CONCLUSIONS

Inconsistent self-reports of extra-familial sexual abuse occur on a substantial scale and are associated with less severe forms of abuse (lack of salience) or classification difficulties (perpetrator being a family member or not). Consistency tests and probing for clarifications or corrections should be routinely conducted in order to increase the quality of CSA epidemiological research.

A perfect childhood? Clinical correlates of minimization and denial on the childhood trauma questionnaire

Childhood trauma has pervasive and enduring effects on myriad health outcomes, and the Childhood Trauma Questionnaire (CTQ) is a widely used screening tool. To assess recall and reporting biases, the CTQ includes a Minimization/Denial (MD) Scale, although this scale is typically omitted or not reported on. As this practice is not supported by empirical data, we sought to examine the clinical correlates of the CTQ MD Scale, as well as its function as a response bias index (i.e., its moderation effects). We examined correlations between the MD Scale and attachment style, temperament, personality, depression, and clinical diagnoses in a group of 200 adult psychiatric outpatients. Regression analyses were performed to assess the impact of MD on the relationships between the CTQ and clinical variables. Twenty percent of our sample met MD criteria. When patients were grouped as MD-positive versus MD-negative, significant between-group differences were found on several clinical measures. MD status, however, did not significantly moderate the relationships between the CTQ and clinical variables. This is one of the first clinically focused examinations of the CTQ's MD Scale. Although the MD Scale was associated with several clinical variables, it did not significantly moderate the relationship between the CTQ and clinical variables. These findings, therefore, call into question the value of the MD Scale as a response bias index, although they should be replicated in larger studies before the currently ubiquitous practice of ignoring it can be considered evidence-based.

Autobiographical memory specificity in child sexual abuse victims

The present study examined the specificity of autobiographical memory in adolescents and adults with versus without child sexual abuse (CSA) histories. Eighty-five participants, approximately half of whom per age group had experienced CSA, were tested on the autobiographical memory interview. Individual difference measures, including those for trauma-related psychopathology, were also administered. Findings revealed developmental differences in the relation between autobiographical memory specificity and CSA. Even with depression statistically controlled, reduced memory specificity in CSA victims relative to controls was observed among adolescents but not among adults. A higher number of posttraumatic stress disorder criteria met predicted more specific childhood memories in participants who reported CSA as their most traumatic life event. These findings contribute to the scientific understanding of childhood trauma and autobiographical memory functioning and underscore the importance of considering the role of age and degree of traumatization within the study of autobiographical memory.

The childhood sexual abuse among youth in three Asian cities: Taipei, Shanghai, and Hanoi

The article describes the prevalence and risk factors of childhood sexual abuse (CSA) among youth in Hanoi, Shanghai, and Taipei. Data used in this study are from the Three-City Asian Study of Adolescents and Youth, 2006-2007. Descriptive analysis and logistic regression models were used. The self-reported lifetime prevalence of CSA was 5.2% in Taipei, 1.3% in Shanghai, and 0.5% in Hanoi. The overall prevalence was 2.2% for females and 1.7% for males. The average age of first CSA was 10.5 years. Household instability, migration before age 14, and low maternal warmth were found to be positively associated with CSA, whereas discussing problems with father and being close to mother were negatively associated with CSA, after adjusting for sociodemographic characteristics. Our findings suggested the importance of prevention programs for preteen aged children, public education to raise awareness, and further prospective studies to identify various risk markers for CSA in Asia.

Association between childhood sexual abuse and adverse psychological outcomes among youth in Taipei

PURPOSE

The objective of this study was to examine the relationship between a history of childhood sexual abuse (CSA) and negative psychological consequences in adulthood, controlling for family environments and Confucian values.

METHODS

The data used in this study were collected from Taipei. The final analysis sample comprised 4,084 participants aged 15-24 years. Three sets of logistic regression models were fitted to verify the association between CSA and negative psychological outcomes. Sociodemographic variables, household instability, and parenting variables, as well as Confucian value variables were controlled in models step by step. The overall prevalence of CSA in our analysis sample was 5.2%.

RESULTS

The overall prevalence of depression, anxiety, and suicidal ideation among Taipei respondents was 11.8%, 16.4%, and 16.7%, respectively, but young people who experienced CSA had significantly higher rates of all three than young adults who had not experienced CSA. After controlling for other covariates, the odds ratios of depression, anxiety, and suicidal ideation associated with a history of CSA were 1.78 (95% confidence intervals [CI]: 1.25-2.54), 1.77 (95% CI: 1.28-2.44), and 2.56 (95% CI: 1.56-4.29), respectively.

CONCLUSIONS

Our findings suggested that CSA was an independent predictor of negative psychological consequences in adulthood. In our analysis, we controlled for household, parenting, and Confucian culture factors, which provides a better understanding of how they work together to affect adult psychological status.

Trauma severity and defensive emotion-regulation reactions as predictors of forgetting childhood trauma

Using a retrospective survey, we studied a sample of 1,679 college women to determine whether reports of prior forgetting of childhood sexual abuse, physical abuse, and other traumas could be explained by trauma severity and individual differences in the use of defensive emotion-regulation reactions (i.e., repressive coping, dissociation, and fantasy proneness). Among victims of physical abuse (but not sexual abuse or other types of trauma), those who experienced severe abuse and used defensive reactions were sometimes more likely to report temporary forgetting of abuse but other times less likely to report forgetting. We also found unanticipated main effects of trauma severity on temporary forgetting. Our results provide an understanding of victims' experiences of forgetting by demonstrating the importance of considering unique effects of trauma type, different aspects of trauma severity, and victims' defensive reactions to trauma.

Motivated forgetting and misremembering: perspectives from betrayal trauma theory

Individuals are sometimes exposed to information that may endanger their well-being. In such cases, forgetting or misremembering may be adaptive. Childhood abuse perpetrated by a caregiver is an example. Betrayal trauma theory (BTT) proposes that the way in which events are processed and remembered will be related to the degree to which a negative event represents a betrayal by a trusted, needed other. Full awareness of such abuse may only increase the victim's risk by motivating withdrawal or confrontation with the perpetrator, thus risking a relationship vital to the victim's survival. In such situations, minimizing awareness of the betrayal trauma may be adaptive. BTT has implications for the larger memory and trauma field, particularly with regard to forgetting and misremembering events. This chapter reviews conceptual and empirical issues central to the literature on memory for trauma and BTT as well as identifies future research directions derived from BTT.

Autobiographical memory development from an attachment perspective: the special role of negative events

The authors propose a novel model of autobiographical memory development that features the fundamental role of attachment orientations and negative life events. In the model, it is proposed that early autobiographical memory derives in part from the need to express and remember negative experiences, a need that has adaptive value, and that attachment orientations create individual differences in children's recollections of negative experiences. Specifically, the role of attachment in the processing of negative information is discussed in regard to the mnemonic stages of encoding, storage, and retrieval. This model sheds light on several areas of contradictory data in the memory development literature, such as concerning earliest memories and children's and adults' memory/suggestibility for stressful events.

Child maltreatment and memory

Exposure to childhood trauma, especially child maltreatment, has important implications for memory of emotionally distressing experiences. These implications stem from cognitive, socio-emotional, mental health, and neurobiological consequences of maltreatment and can be at least partially explained by current theories concerning the effects of childhood trauma. In this review, two main hypotheses are advanced: (a) Maltreatment in childhood is associated with especially robust memory for emotionally distressing material in many individuals, but (b) maltreatment can impair memory for such material in individuals who defensively avoid it. Support for these hypotheses comes from research on child abuse victims' memory and suggestibility regarding distressing but nonabusive events, memory for child abuse itself, and autobiographical memory. However, more direct investigations are needed to test precisely when and how childhood trauma affects memory for emotionally significant, distressing experiences. Legal implications and future directions are discussed.

Health-related quality of life among adults who experienced maltreatment during childhood

OBJECTIVES

We sought to assess the difference in a preference-based measure of health among adults reporting maltreatment as a child versus those reporting no maltreatment.

METHODS

Using data from a study of adults who reported adverse childhood experiences and current health status, we matched adults who reported childhood maltreatment (n = 2812) to those who reported no childhood maltreatment (n = 3356). Propensity score methods were used to compare the 2 groups. Health-related quality-of-life data (or "utilities") were imputed from the Medical Outcomes Study 36-Item Short Form Health Survey using the Short Form-6D preference-based scoring algorithm.

RESULTS

The combined strata-level effects of maltreatment on Short Form-6D utility was a reduction of 0.028 per year (95% confidence interval=0.022, 0.034; P<.001). All utility losses for the childhood-maltreatment versus no-childhood-maltreatment groups by age group were significantly different: 18-39 years, 0.042; 40-49 years, 0.038; 50-59 years, 0.023; 60-69 years, 0.016; 70 or more years, 0.025.

CONCLUSIONS

Persons who experienced childhood maltreatment had significant and sustained losses in health-related quality of life in adulthood relative to persons who did not experience maltreatment. These data are useful for assessing the cost-effectiveness of interventions designed to prevent child maltreatment in terms of cost per quality-adjusted life years saved.