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 depressed and nondepressed patients with borderline personality disorder after long‐term psychotherapy

The present study investigated whether scores on the Autobiographical Memory Test (AMT) in 55 patients with borderline personality disorder (BPD) were modified after long‐term psychotherapy and whether the pretreatment AMT scores would predict improvement in depression severity or BPD symptom severity at the end of treatment. In addition, it was analysed whether changes in ratings of mood, thought suppression, dissociation, and BPD symptom severity following treatment were associated with changes in AMT scores. Only patients with BPD and a comorbid diagnosis of depression at time 1, generated significantly more specific memories and fewer categoric memories after 15 months of therapy. Moreover, these changes were unrelated to type of therapy and changes in depression severity, borderline symptom severity, dissociation, or thought suppression. The AMT scores at initial assessment did not predict depression severity at 15 months. The percentage of negative specific memories tended to predict BPD symptom severity.     

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.     

Memory and awareness in a patient with multiple personality disorder

We studied an individual with multiple personality disorder in whom each of several personalities claimed to have no direct awareness of the others and to be unable to consciously remember the experiences of other personalities. A broad selection of implicit and explicit memory tests was used to determine the extent to which one personality had access to knowledge acquired by another and the circumstances in which that knowledge would be expressed. The implicit assessment of memory was a necessary but not sufficient condition for demonstrating interpersonality access. The degree of compartmentalization of knowledge in this patient depended largely on whether the interpretation of presented information was likely to differ across personalities.     

Assessment of ego functioning in multiple personality disorder

The dissociative disorder known as multiple personality disorder (MPD) presents a diagnostic challenge to psychological assessment techniques. A case example is presented in which a new self-report, multifactorial measure of ego functioning discriminated distinct profiles for four personalities within one multiple personality organization. Interpretations of characteristics of the primary and secondary personalities based on the Bell Object Relations Reality Testing Inventory (BORRTI) are presented. The relationship between these findings and other approaches to psychological testing for dissociation and MPD are discussed. It is suggested that this approach will facilitate the clinical assessment of suspected MPD subjects and contribute to affording appropriate treatment to this population.     

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 deficits in schizophrenia

This study investigated autobiographical memory processes in a group of individuals diagnosed with schizophrenia and matched controls. The schizophrenia group displayed an overgeneral style of autobiographical memory retrieval on two widely used measures, and displayed problems retrieving both autobiographical facts and events. They showed a specific impairment in the recall of autobiographical events and facts in early adulthood, around the time of onset of their illness. Retrieval deficits were independent of mood state and premorbid intellectual functioning. The magnitude of the deficits in autobiographical memory retrieval specificity were considerably greater than any general impairments in episodic and working memory.     

Managing persons with multiple personality disorder in a heterogeneous inpatient group

Experts advise against referring persons with multiple personality disorder to diagnostically heterogeneous groups. As more multiples are admitted to inpatient units this presents a problem. Excluding persons of a particular diagnosis from groups makes it difficult to promote a cohesive therapeutic milieu. I have found that multiples can be managed successfully in mixed groups. The leader is advised to adhere to a reliable structure and pay close attention to boundary issues. Themes for discussion must be judiciously evaluated so that effectiveness is not undermined. Patients with different diagnoses can come to appreciate their similarities and benefit from groups.     

Autobiographical memory style in seasonal affective disorder and its relationship to future symptom remission

Autobiographical memory was examined in participants with seasonal affective disorder (SAD). In Experiment 1, participants with SAD performed an autobiographical memory task (AMT) in the winter, when depressed. The AMT required participants to generate autobiographical memories to positive and negative cue words. Symptom levels were reassessed in the summer, when participants were remitted. The number of overly general memories to positive cues generated when the SAD participants were depressed predicted symptom levels when remitted, over and above initial symptom levels, with greater winter overgenerality being associated with high levels of summer symptoms. However, this was dependent on the exact measure of depressive symptoms used. The degree of overgenerality of memories in SAD participants was further investigated in Experiment 2. Results revealed that SAD participants did not show elevated recall of overgeneral memories relative to controls. The results as a whole indicate that, even when levels of general memories are no greater in a given target group than in controls, the absolute level of general memories to positive cue words is still independently related to symptom outcome.     

Similarities between near-death experiences and multiple personality disorder

In this paper I compare the phenomenology of near-death experiences to that of multiple personality disorder. The comparison reveals a number of similarities, including out-of-body experiences, the transcendental environment, encounter with the higher self, possible temporal lobe involvement, and antecedent child abuse. Rather than being disparate and unrelated experiences, I suggest that the near-death experience and multiple personality disorder may be variants of the same basic phenomenological pattern.     

Autobiographical memory bias in social anxiety

In social anxiety the psychological self is closely related to the feared stimulus. Socially anxious individuals are, by definition, concerned about how the self is perceived and evaluated by others. As autobiographical memory is strongly related to views of the self it follows that biases in autobiographical memory play an important role in social anxiety. In the present study high (n = 19) and low (n = 29) socially anxious individuals were compared on autobiographical memory bias, current goals, and self-discrepancy. Individuals high in social anxiety showed a bias towards recalling more negative and more social anxiety-related autobiographical memories, reported more current goals related to overcoming social anxiety, and showed larger self-discrepancies. The pattern of results is largely in line with earlier research in individuals with PTSD and complicated grief. This suggests that the relation between autobiographical memory bias and the self is a potentially valuable trans-diagnostic factor.