Memory distortion for traumatic events: the role of mental imagery

A Research-Informed Approach to Providing Behavioral Healthcare to Women with Extensive Trauma Histories

Translating research to behavioral healthcare practice is vital for improving treatment impact but can be challenging. Current and lifetime histories of trauma need to be considered in behavioral healthcare provision as they can significantly affect an individual's treatment experience. This article provides guidance on how to utilize research findings regarding trauma prevalence and experiences of women who have substance use disorder and who are homeless or near homeless to help guide responsive healthcare and treatment in practice.

Anniversary reactions among journalists covering terror: stress reactions and well-being 10 years after the terror in Norway

Background: Covering terror and catastrophes can be traumatic for journalists, potentially resulting in long-term impairment. This study investigated 10-year anniversary reactions among Norwegian journalists who covered the Oslo/Utöya terror incident in Norway, 2011.Objective: The study aimed to investigate whether level of traumatic exposure and support actions in 2011 were related to anniversary reactions and current psychological well-being in 2021. It also explored if magnitude of anniversary reactions was related to level of current well-being.Method: A cross-sectional survey was sent to journalists who still work within journalism, eight weeks after the 10-year anniversary (N = 200). Participants reported retrospectively on trauma exposure, ethical dilemmas and social support in 2011, as predictors, and attitude to media anniversary coverage, anniversary-related stress, and well-being, as outcome variables.Results: More ethical dilemmas in 2011 (r = .295, p < .001) were related to a larger degree of anniversary-related stress in 2021. Having received less workplace social support in 2011 was related to more stress reactions (r = -.196, p < .05), while the magnitude of overall traumatic exposure in 2011 was not related to stress. Social support also predicted a higher level of current well-being in 2021 (r = .381, p < .001). More severe anniversary-related stress symptoms were significantly associated with decreased level of current well-being (r = -.259, p < .001).Conclusion: Journalists can experience lasting consequences from demanding experiences at work, including fluctuating stress symptoms during incident anniversaries. It is crucial for both journalists and newsrooms to recognize and be aware of the potential impact of anniversaries on the well-being of those involved in the initial coverage.

A survey for characterizing details of fall events experienced by lower limb prosthesis users

Despite their importance to fall prevention research, little is known about the details of real-world fall events experienced by lower limb prosthesis users. This gap can be attributed to the lack of a structured, population-specific fall survey to document these adverse health events. The objective of this project was to develop a survey capable of characterizing the circumstances and consequences of fall events in lower limb prosthesis users. Best practices in survey development, including focus groups and cognitive interviews with diverse samples of lower limb prosthesis users, were used to solicit input and feedback from target respondents, so survey content would be meaningful, clear, and applicable to lower limb prosthesis users. Focus group data were used to develop fall event definitions and construct a conceptual fall framework that guided the creation of potential survey questions and response options. Survey questions focused on the activity, surroundings, situation, mechanics, and consequences of fall events. Cognitive interviews revealed that with minor revisions, survey definitions, questions, and response options were clear, comprehensive, and applicable to the experiences of lower limb prosthesis users. Administration of the fall survey to a national sample of 235 lower limb prosthesis users in a cross-sectional preliminary validation study, found survey questions to function as intended. Revisions to the survey were made at each stage of development based on analysis of participant feedback and data. The structured, 37-question lower limb prosthesis user fall event survey developed in this study offers clinicians and researchers the means to document, monitor, and compare fall details that are meaningful and relevant to lower limb prosthesis users in a standardized and consistent manner. Data that can be collected with the developed survey are essential to establishing specific goals for fall prevention initiatives in lower limb prosthesis users.

Biased reporting of past self-injurious thoughts and behaviors: A literature review

BACKGROUND

Accurate assessment of suicide risk is critical for clinical practice, empirical advances, and informing public policy. In this narrative review of the literature, we compiled evidence from longitudinal studies that identify reporting bias of past self-injurious thoughts and behaviors (SITB) and examined possible correlates of inconsistent reporting.

METHOD

We conducted an extensive literature search, including 19 longitudinal samples or subsamples who reported the presence of current or past SITB at an initial but not at a subsequent assessment (yes/no inconsistent reports).

RESULTS

The median was 33%, and the weighted mean was 39% (95% CI, 37%-41%) for the prevalence of inconsistent reporting of SITB across the longitudinal samples. Importantly, inconsistent reports were linked with less internalizing psychopathology and more adaptive functioning. The type of sample recruited and assessment interval may also be relevant factors to consider.

LIMITATIONS

Variability of sample characteristics and methodology made it challenging to draw firm conclusions across studies but provide information about critical sources of bias.

CONCLUSIONS

Results suggest considerable caution for clinical, empirical, and policy decision-making based on lifetime reports of suicide and encourage a continued consideration for identifying potential reporting biases for SITB.

Microprocessor knee technology reduces odds of incurring an injurious fall for individuals with diabetic/dysvascular amputation

Individuals with lower limb amputation have a high incidence of falls. An above-the-knee amputation and diabetes/vascular disease are both risk factors for falls. Microprocessor knee (MPK) technology may reduce falls in this population. The objective was to determine the association of MPKs and reduced injurious falls. A retrospective analysis of injurious falls within a large, national outcomes database was conducted. Inclusion was limited to adult K3 ambulators with unilateral, transfemoral or knee disarticulation amputation due to diabetes/vascular disease. There were 744 out of 881 individuals that did not receive an MPK. Results showed that 16.3% of non-MPK users experienced an injurious fall compared to 7.3% of MPK users (p=0.007). Not having an MPK resulted in significantly increased odds (unadjusted: OR: 2.47, 95% CI: 1.26 - 4.83, p=0.009; adjusted for confounders: OR: 2.52, 95% CI: 1.28 - 4.94, p=0.007) of incurring an injurious fall over a 6-month period. In conclusion, the current study found use of an MPK strongly associated with reduced injurious falls in a population of patients with amputation due to diabetes/vascular disease. The findings strongly support the use of MPK technology to mitigate fall risk, and in particular injurious falls requiring medical intervention.

A taxonomy of intrusive mental images in clinical disorders: what can "non-veridical" images tell us about the nature of human memory?

Intrusive mental images associated with autobiographical memories or depicting imagined scenes are common in psychological disorders. Although there is a growing body of literature on their contribution to psychopathology and their role in therapy, to date there have been limited attempts to categorise the different types of images that patients experience. In this article, we present a taxonomy which ranges from veridical to non-veridical intrusive images. We highlight the fact that many types of images consist of a blend of veridical and imagined details. After presenting some of the main explanations for the existence of blended and non-veridical images, we reflect on what the evidence on the content and origin of intrusive images tells us about the nature of human memory. We argue that it supports the idea of memory being constructive and briefly discuss what this means for clinical and non-clinical settings in which intrusive images have to be evaluated and used.

Autobiographical Memory in Autism Spectrum Disorder, Attention-Deficit/Hyperactivity Disorder, Hearing Loss, and Childhood Trauma: Implications for Social Communication Intervention

Purpose Speech-language pathologists (SLPs) work with a variety of populations at risk for poor autobiographical and episodic memory. The purpose of this tutorial is to describe autobiographical memory and how it is affected in children with autism spectrum disorder, attention-deficit/hyperactivity disorder, hearing loss, and childhood trauma, as well as provide clinicians with practical strategies for supporting autobiographical memory in each of these clinical populations. Method This tutorial reviews the literature on (a) autobiographical and episodic memory in typical development; (b) its relation to theory of mind, personal narrative skills, and executive functions; (c) elaborative reminiscing in typical development; (d) how autobiographical memory is impaired in children with autism spectrum disorder, attention-deficit/hyperactivity disorder, hearing loss, and childhood trauma; and (e) strategies for supporting autobiographical memory in each clinical population. Conclusions When adequately prepared, SLPs are uniquely situated to address autobiographical and episodic memory in their work with children, families, and related professionals. This is a long-overdue focus of such great clinical import that justifies its inclusion in the traditional training and preparation of SLPs. Adapting elaborative reminiscing strategies for use with various clinical populations is promising for facilitating healthy EM development and related cognitive functions.

The use of post-mortem lividity to determine sleep position in sudden unexpected deaths in infancy

AIM

To compare parental reports of position found in sudden unexpected deaths in infancy (SUDI) to autopsy reports of lividity and to more accurately classify infant sleep position.

METHODS

Cases of SUDI in Queensland between 2010 and 2014 were reviewed to determine the position in which infants were reported to have been placed and found. This was compared to the distribution of post-mortem lividity at autopsy. Evidence of lividity present during early death scene investigation was also recorded.

RESULTS

There was a discordance between the position an infant was reported to have been found and the position of lividity at autopsy in 22/228 SUDI (9.6%). All infants had anterior lividity despite 13 reportedly found supine, three on their side and six in an unknown position. Using anterior lividity at autopsy to change the position found increased the proportion of prone infants from 37.7% to 47.4%. In 47.8% cases, anterior or lateral lividity reported at the scene was no longer present at autopsy.

CONCLUSION

Previously published odds ratios may have underestimated the risk of sudden infant death associated with prone sleep position. SUDI death scene investigation protocols should require photographic documentation of lividity prior to transporting an infant.

OASIS 1: Retrospective analysis of four different microprocessor knee types

INTRODUCTION

Microprocessor knee analyses to date have been primarily limited to microprocessor knees as a category rather than comparisons across different models. The purpose of the current analysis was to compare outcomes from four common knee models.

METHODS

A retrospective analysis of clinical outcomes was performed. Outcomes for functional mobility, quality of life, satisfaction with amputee status, and injurious falls were compared. Specific knee types represented were C-Leg (Ottobock), Orion (Blatchford), Plié (Freedom Innovations), and Rheo (Össur).

RESULTS

Outcomes from 602 individuals were included. No significant differences were noted for functional mobility (H = 2.91, p = 0.406) or satisfaction (H = 4.43, p = 0.219). For quality of life, differences existed for C-Leg versus Plié (p = 0.010). For injurious falls, C-Leg (χ2 (1,137) = 10.99, p < 0.001) and Orion (χ2 (1,119) = 4.34, p = 0.037) resulted in significantly reduced injurious falls compared to non-microprocessor knee users. C-Leg (H = 19.63, p < 0.001) and Plié (H = 14.04, p = 0.003) users saw declines with advanced aging.

CONCLUSIONS

Our data indicate relative parity among the 4 microprocessor knees with regard to functional mobility and satisfaction. In contrast to mobility, neither satisfaction nor quality of life values reflected declines with aging. Finally, when compared to non-microprocessor knees, significant differences were observed across the microprocessor knee types in relation to the reduction of injurious falls.Keywords: MPK, mobility, quality of life, falls, amputee, outcomes.

Illness beliefs and emotional responses in mildly disabled stroke survivors: A qualitative study

Background

As acute stroke services improve, more persons experience mild stroke and need to cope daily with hidden disabilities, which may be influenced by how they perceive stroke, cognitively and emotionally.

Objective

To investigate cognitive illness beliefs and emotional responses in persons with mild stroke and their possible influences on daily coping.

Methods

Semi-structured interviews were conducted with 24 persons with mild stroke, on average 7.5 months (±0.89) after stroke occurrence. A thematic analysis on verbatim transcripts was guided by the Common-Sense Model of Self-Regulation.

Results

All participants experienced difficulties constructing an illness identity at both acute and chronic phase. Behavioral risk factors were less accepted as causes of stroke. Lack (or inappropriate timing) of information from healthcare providers led to limited medication knowledge and low perceived control of stroke recurrence which generated anxiety, fear, and low involvement in coping. Participants who considered stroke a chronic condition experienced more difficulties. Perceived support from relatives and healthcare providers was beneficial for participation in recovery and health behaviour change.

Conclusion

Despite having mildly disabilities, participants reported difficulties developing illness beliefs conducive to coping, and dealing with their emotional responses. These elements should be considered in tailored programs to improve coping with hidden disabilities post-stroke.

Δ9-Tetrahydrocannabinol at Retrieval Drives False Recollection of Neutral and Emotional Memories

BACKGROUND

It is well established that the main psychoactive constituent of cannabis, Δ⁹-tetrahydrocannabinol (THC), impairs episodic memory encoding and modulates emotional processing, but little is known about the impact of THC during the retrieval of emotional episodic memories. With the rise of cannabis to treat medical conditions, including those characterized by emotional and episodic memory disturbances, there is an urgent need to determine the effects of THC on memory accuracy and distortion. Here, we report the first study investigating the effects of THC during retrieval of neutral and emotional episodic memories.

METHODS

Using a double-blind, placebo-controlled, within-subjects design, healthy volunteers (N = 23) viewed negative, neutral, and positive pictures (emotional memory task) and lists of semantically related words (false memory task). Forty-eight hours later, participants ingested a capsule containing either THC (15 mg) or placebo and completed tasks to test their memories for the previously studied pictures and words.

RESULTS

THC during retrieval did not reduce the number of correct responses to studied items. Instead, it robustly increased false recollection on both the emotional memory and false memory tasks. This effect was found for both neutral and emotional items.

CONCLUSIONS

These findings show that THC has adverse effects during memory retrieval, distorting both neutral and emotional memories. Coupled with THC's known effects during encoding, these new retrieval findings are important in light of the spreading acceptance of cannabis.