Autobiographical memory specificity and emotional disorder

The authors review research showing that when recalling autobiographical events, many emotionally disturbed patients summarize categories of events rather than retrieving a single episode. The mechanisms underlying such overgeneral memory are examined, with a focus on M. A. Conway and C. W. Pleydell-Pearce's (2000) hierarchical search model of personal event retrieval. An elaboration of this model is proposed to account for overgeneral memory, focusing on how memory search can be affected by (a) capture and rumination processes, when mnemonic information used in retrieval activates ruminative thinking; (b) functional avoidance, when episodic material threatens to cause affective disturbance; and (c) impairment in executive capacity and control that limits an individual's ability to remain focused on retrieval in the face of distraction.     

Autobiographical memory in a case of multiple personality disorder

Previous research on multiple personality disorder (MPD) has been concerned with between-personalities amnesia, and little attention has been paid to within-personality memory function. This study examined the autobiographical memory of a multiple personality patient, I.C., with cueing procedures that have proven useful in previous studies of normal and abnormal memory. Results indicated that I.C. was able to retrieve autobiographical episodes from the recent past, although her performance differed in several respects from that of matched controls. The study also revealed a striking deficit in I.C.'s autobiographical memory for childhood: She was unable to recall a single episode from prior to the age of 10 in response to various retrieval cues, whereas control subjects had no difficulty recalling numerous childhood episodes. This phenomenon of extended childhood amnesia has not been reported previously in studies of MPD.     

Memory of myself: Autobiographical memory and identity in Alzheimer's disease

A number of theories posit a relationship between autobiographical memory and identity. To test this we assessed the status of autobiographical memory and identity in 20 individuals with Alzheimer's disease (AD) and 20 age‐matched controls, and investigated whether degree of autobiographical memory impairment was associated with changes in identity. Two tests of autobiographical memory (Autobiographical Memory Interview, autobiographical fluency) and two measures of identity (Twenty Statements Test, identity items of the Tennessee Self Concept Scale) were administered. AD participants exhibited significant impairments on both memory tests, and changes in the strength, quality, and direction of identity relative to controls. Impairments of some components of autobiographical memory, particularly autobiographical memory for childhood and early adulthood, were related to changes in the strength and quality of identity. These findings support the critical role of early adulthood autobiographical memories (16–25 years) in identity, and suggest autobiographical memory loss affects identity.     

Autobiographical memory specificity, psychopathology, depressed mood and the use of the Autobiographical Memory Test: a meta-analysis

Reviewing the literature on autobiographical memory overgenerality, as measured by a cueing task like the Autobiographical Memory Test (AMT), gives a diffuse view of the moderating role of depression. This meta-analysis is an attempt to investigate the role of depression in the specificity of autobiographical memory, while accounting for the role of patient and task variables as possible moderators. Meta-analytic techniques are used to synthesize data from 14 studies on the recall of specific autobiographical memories in psychiatric and non-psychiatric samples. The results confirm the relationship between overgenerality and depression. The psychiatric patients are less specific than their non-clinical controls. It is not possible to establish that this result is solely due to a (co-morbid) diagnosis of depression. Self-reported depressed mood is also related to an impairment of autobiographical memory specificity. The way of presenting cues, audio taping responses and the maximum available amount of time to respond, are moderators of AMT performance.     

Autobiographical memory as a dynamic process: Autobiographical memory mediates basic tendencies and characteristic adaptations

Two studies tested whether autobiographical memory content and phenomenology mediate two consistent findings in the personality literature: Neuroticism and subjective health and Conscientiousness and achievement striving. In Study 1, participants (N = 162) retrieved and rated four memories and completed measures of Neuroticism and subjective health. In Study 2, participants (N = 345) retrieved and rated two memories and completed measures of Conscientiousness and achievement goals and study strategies. In both studies, memory content and phenomenology mediated the relations between personality and health and achievement in expected ways. For example, participants high in Neuroticism reported more somatic complaints because their memories were saturated with negative affective content. Discussion focuses on the utility of integrating trait and social–cognitive approaches to personality.     

Autobiographical memory in posttraumatic stress disorder before and after treatment

Although overgeneral retrieval of autobiographical memories has been repeatedly demonstrated in posttraumatic stress disorder (PTSD), no studies have indexed overgeneral retrieval before and after treatment of PTSD. Autobiographical memory was assessed in PTSD participants (n=20) prior to commencing cognitive behaviour therapy and 6 months after therapy completion. Fifteen participants completed both assessments. Improvement in PTSD symptoms was significantly associated with improved retrieval of specific memories and decreased retrieval of categoric memories in response to positive cues. These data suggest that symptom reduction during treatment of PTSD leads to greater access to specific memories of positive experiences.     

Autobiographical memory for stressful events: the role of autobiographical memory in posttraumatic stress disorder

To provide the three-way comparisons needed to test existing theories, we compared (1) most-stressful memories to other memories and (2) involuntary to voluntary memories (3) in 75 community dwelling adults with and 42 without a current diagnosis of posttraumatic stress disorder (PTSD). Each rated their three most-stressful, three most-positive, seven most-important and 15 word-cued autobiographical memories, and completed tests of personality and mood. Involuntary memories were then recorded and rated as they occurred for 2 weeks. Standard mechanisms of cognition and affect applied to extreme events accounted for the properties of stressful memories. Involuntary memories had greater emotional intensity than voluntary memories, but were not more frequently related to traumatic events. The emotional intensity, rehearsal, and centrality to the life story of both voluntary and involuntary memories, rather than incoherence of voluntary traumatic memories and enhanced availability of involuntary traumatic memories, were the properties of autobiographical memories associated with PTSD.     

Development and psychometric properties of a new measure for memory phenomenology: The Autobiographical Memory Characteristics Questionnaire

The purpose of this study is to develop a valid and reliable measure for the phenomenology of autobiographical memories. The psychometric properties of the Autobiographical Memory Characteristics Questionnaire (AMCQ) were tested in three studies: the factor structure of the AMCQ was examined for childhood memories in Study 1 (N = 305); for autobiographical memories related to romantic relationships in Study 2 (N = 197); and for self-defining memories in Study 3 (N = 262). The explanatory factor analyses performed for each memory type demonstrated the consistency of the AMCQ factor structure across all memory types; while a confirmatory factor analysis on the data garnered from all three studies supported the constructs for the autobiographical memory characteristics defined by the researchers. The AMCQ consists of 63 items and 14 factors, and the internal consistency values of all 14 scales were ranged between .66 and .97. The relationships between the AMCQ scales related to gender and individual emotions, as well as the intercorrelations among the scales, were consistent with both theoretical expectations and previous findings. The results of all the three studies indicated that this new instrument is a reliable and robust measure for memory phenomenology.     

Memory and memory confidence in obsessive-compulsive disorder

Pathological doubt, often found in individuals with obsessive-compulsive disorder (OCD), has been theoretically linked to memory deficits, but empirical evidence for such deficits has been mixed. In contrast, many studies suggest that individuals with OCD have low confidence in their memories. The present study aimed to build upon previous research by measuring memory accuracy and confidence in OCD using ecologically valid, idiographically-selected stimuli. Individuals with OCD (OCs), anxious controls (ACs), and nonanxious controls (NACs) were exposed to a set of objects that the OCs had identified as safe, unsafe, or neutral. Participants were then asked to recall as many objects as possible and to rate their confidence in each memory. This process was repeated 6 times, using the same stimuli for each trial. Contrary to hypothesis, no group differences emerged in memory accuracy. However, OCs' memory confidence for unsafe objects showed a progressive decline over repeated trials. This pattern was not observed among NACs or ACs. Furthermore, OCs with primary checking reported lower confidence in long-term memory than did OCs without primary checking. These results suggest that when OCs are repeatedly exposed to threat-related stimuli (such as repeated checking), their level of confidence in remembering these stimuli paradoxically decreases.     

Autobiographical memories for the September 11th attacks: Reconstructive errors and emotional impairment of memory

College students were asked about their personal memories from September 11, 2001. Consistency in reported features over a 2-month period increased as the delay between the initial test and 9/11 increased. Central features (e.g., Where were you?) were reported with greater consistency than were peripheral features (What were you wearing?) but also contained a larger proportion of reconstructive errors. In addition, highly emotional participants demonstrated poor prospective memory and relatively inconsistent memory for peripheral details, when compared with less emotional participants. Highly emotional participants were also more likely to increase the specificity of their responses over time but did not exhibit greater consistency for central details than did less emotional participants. The results demonstrated reconstructive processes in the memory for a highly consequential and emotional event and emotional impairment of memory processing of incidental details.     

Reflecting on imagery: A clinical perspective and overview of the special issue of Memory on mental imagery and memory in psychopathology

The authors provide an overview of the papers in the special issue of Memory on mental imagery and memory in psychopathology. The papers address emotional, intrusive mental imagery across a range of psychological disorders including post‐traumatic stress disorder (PTSD), agoraphobia, body dysmorphic disorder, mood disorders, and psychosis. They include work on information processing issues including modelling cravings, conditioning, and aversions, as well as imagery qualities such as vividness and emotionality. The overview aims to place the articles in a broader context and draw out some exciting implications of this novel work. It provides a clinical context to the recent growth in this area from a cognitive behavioural therapy (CBT) perspective. We begin with PTSD, and consider links to imagery in other disorders. The clinical implications stemming from this empirical work and from autobiographical memory theory are discussed. These include consideration of a variety of techniques for eliminating troublesome imagery, and creating healthy, realistic alternatives.     

Autobiographical memory and clinical anxiety

Abstract

Previous experiments on the recall of threatening and neutral information in clinically anxious subjects have yielded mixed results. The present study assessed autobiographical memory in patients with generalised anxiety disorder (GAD), and normal controls. Subjects were first presented with neutral cue words and asked to respond with any personal memory. GAD subjects judged the content of their own memories as more consistent with anxious mood, and less consistent with pleasant mood, than that reported by controls. Subjects were then again presented with neutral cue words, but with instructions to provide either “anxious” or “nonanxious” personal memories, on specified trials. Significant interactions between group and instruction condition indicated that anxious subjects recalled more anxiety-evoking memories, and recalled them more rapidly, relative to controls. Ratings by blind judges did not support the hypothesis that this apparent difference in the content of autobiographical recall was an artefact due to anxious subjects labelling memories as being more anxiety evoking than would controls. Possible explanations of the findings, and reasons for the apparent discrepancy between these and earlier results, are discussed.     

抑郁症患者的自传体记忆特征及其应用自传体记忆测验的元分析

研究目的在于探讨抑郁症患者自传体记忆的特征以及自传体记忆测验(the autobiographical memory test, AMT)在该领域的应用情况。通过文献检索, 搜集了18篇应用AMT作为测评工具的抑郁症自传体记忆研究, 抑郁症患者566人, 正常对照组457人。元分析研究发现, 和正常对照组比较, 抑郁症组的具体性记忆减少, 概括化记忆增多, 反应迟缓。目前对这种现象的解释主要有功能性回避模型、认知执行受损模型和沉思模型; 年龄、抑郁情绪以及AMT测试程序对测试结果有明显影响; 发表偏倚和敏感性分析显示存在发表偏倚, 但稳定性较好。AMT在抑郁症研究存在灵敏度不足等局限, 作者从AMT程序、研究设计等方面提出了改善建议。