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Objective: According to DSM-IV criteria, dissociative symptoms in borderline personality disorder (BPD) occur in response to stress. Empirical evidence is, however, lacking., Method: Using ambulatory monitoring, we assessed dissociative symptoms and subjective ratings of stress every 60 min for 48 h on a palmtop computer in BPD-patients (n = 51), clinical controls (CC; major depression n = 25; panic disorder n = 26), and healthy controls (HC; n = 40). Data analyses were primarily based on hierarchical linear models., Results: In all groups, states of increased stress were paralleled by increased scores of dissociation, thus confirming the hypothesized association between stress and dissociation. The increase in dissociation was more pronounced in BPD-patients when compared with CC and HC. Additionally, BPD-patients reported heightened dissociative experience compared with CC and HC, even after controlling for stress., Conclusion: Our data suggest that BPD-patients might be prone to dissociation when experiencing stress and are characterized by a generally heightened level of dissociation.

There are hints for a negative predictive power of dissociative states for treatment outcome in patients with borderline personality disorder. A possible explanation is the alteration of information processing associated with dissociation. Dissociative states can be influenced by specific psychotherapeutic interventions. 30 patients with borderline personality disorder were assessed with self-report questionnaires to evaluate dissociation and psychopathology before and after treatment with Dialectic Behavior Therapy. As found in recent studies, dissociation before treatment was correlated to general psychopathology at treatment end. In contrast to the core hypothesis, patients with high initial dissociation did not present less improvement than those with lower initial degrees regarding the parameters of general psychopathology, anxiety, depression and psychosocial functioning. In terms of the parameter of dissociation, patients with high degrees of initial dissociation even achieved the highest extent of relative symptom reduction. This astonishing result can be explained by the treatment setting which to a high extent provided specific psychoeducation and treatment concerning dissociative behavior.

Objective: This study was designed to examine the subjective appraisal of aversive tension under conditions of daily life in patients with borderline personality disorder (BPD)., Method: A sample of 63 female subjects with BPD and 40 mentally healthy controls were each given a hand-held computer. For two consecutive days, participants were prompted at hourly intervals to record their current state of aversive tension and prompting events., Results: Compared with controls, states of aversive tension occurred significantly more frequently in BPD patients. The average levels of aversive tension were significantly higher, and the rate of increase in tension was markedly more rapid. Furthermore, states of aversive tension persisted for a longer period. Among BPD subjects three events (rejection, being alone, and failure) account for 39% of all events preceding states of tension., Conclusion: The study provides support for the theory that patients with BPD experience more frequent, stronger, and longer-lasting states of aversive tension., (Copyright Blackwell Munksgaard 2005.)

The Dissociation-Tension-Scale acute (DSS-acute) is conducted as a self-rating instrument to assess present-time dissociative features. In addition, the level of aversive inner tension is assessed. The study validates the psychometric quality of the DSS-acute. The sample included 195 female probands. Internal consistency is high (Cronbach's alpha = 0.94). The same is true for split-half reliability according to Gutmann (r = 0.93). The DSS-acute correlates high with scales assessing similar constructs but differs from global scales. The DSS-acute discriminates well between different diagnostic groups. There exist first evidences for being a sensitive instrument for assessing changing symptomatology. The DSS-acute is a reliable and valid instrument to assess present-time dissociative experiences as well as aversive inner tension. Current studies should further proof the sensitivity for changing symptomatology.

Assuming that the experience of strong aversive tension might be an indicator of the extent of affect dysregulation within patients with borderline personality disorder (BPD), we sought to operationalize the duration and intensity of these phenomena. In addition we studied the relationship between aversive tension and the experience of dissociative features. Seventy-two female patients with BPD, together with 55 healthy controls, completed a self-rating questionnaire covering the previous 24 h. Substantial and highly significant differences with regard to the duration and intensity of the subjectively perceived states of aversive tension were found. Amongst patients with BPD there was a strong correlation between duration and intensity of tension, and experience of dissociative features, both somatoform and psychological. The findings underline the clinical importance of states of aversive tension in BPD particularly with regard to stress-related induction of dissociative features.

Background: Dissociative phenomena, including flashbacks, are common in patients with borderline personality disorder and posttraumatic stress disorder (PTSD). Although dissociative symptoms can be severe and may interfere with psychotherapy, there is no established pharmacotherapy for these symptoms. Evidence suggests that alterations of the endogenous opiate system contribute to dissociative symptoms in patients with borderline personality disorder and PTSD., Method: We treated 2 groups of female borderline personality disorder patients (N = 13, with an overlap of 5 patients between the 2 groups; all met the diagnostic criteria of DSM-IV and the revised Diagnostic Interview for Borderline Patients) who experienced prominent dissociative phenomena including flashbacks with the nonselective opiate receptor antagonist naltrexone, 25 to 100 mg q.i.d., for at least 2 weeks. A self-rated questionnaire measuring dissociation, analgesia, tonic immobility, and tension (DAISS) was applied to 9 patients, who completed it for 7 consecutive days before and during treatment with naltrexone. In addition, 9 patients (with an overlap of 5 patients from the other group) completed a flashback protocol., Results: DAISS scores reflected a highly significant reduction of the duration and the intensity of dissociative phenomena and tonic immobility as well as a marked reduction in analgesia during treatment with naltrexone. Six of 9 patients reported a decrease in the mean number of flashbacks per day., Conclusion: These observations support the hypothesis that an increased activity of the opioid system contributes to dissociative symptoms, including flashbacks, in borderline personality disorder and suggest that these symptoms may respond to treatment with opiate antagonists. In view of these results, a placebo-controlled, double-blind study to assess the potential benefit of naltrexone in a more rigorous way appears justified.