Outcome of crisis intervention for borderline personality disorder and post traumatic stress disorder: a model for modification of the mechanism of disorder in complex post traumatic syndromes
© Laddis; licensee BioMed Central Ltd. 2010
Received: 16 July 2009
Accepted: 27 April 2010
Published: 27 April 2010
This study investigates the outcome of crisis intervention for chronic post traumatic disorders with a model based on the theory that such crises manifest trauma in the present. The sufferer's behavior is in response to the current perception of dependency and entrapment in a mistrusted relationship. The mechanism of disorder is the sufferer's activity, which aims to either prove or disprove the perception of entrapment, but, instead, elicits more semblances of it in a circular manner. Patients have reasons to keep such activity private from therapy and are barely aware of it as the source of their symptoms.
The hypothesis is that the experimental intervention will reduce symptoms broadly within 8 to 24 h from initiation of treatment, compared to treatment as usual. The experimental intervention sidesteps other symptoms to engage patients in testing the trustworthiness of the troubled relationship with closure, thus ending the circularity of their own ways. The study compares 32 experimental subjects with 26 controls at similar crisis stabilization units.
The results of the Brief Psychiatric Rating Scale (BPRS) supported the hypothesis (both in total score and for four of five subscales), as did results with Client Observation, a pilot instrument designed specifically for the circular behavior targeted by the experimental intervention. Results were mostly non-significant from two instruments of patient self-observation, which provided retrospective pretreatment scores.
The discussion envisions further steps to ascertain that this broad reduction of symptoms ensues from the singular correction that distinguishes the experimental intervention.
Protocol Registration System NCT00269139. The PRS URL is https://register.clinicaltrials.gov
Behavioral crises in the course of borderline personality disorder (BPD) and post traumatic stress disorder (PTSD) consist of intrusive rehearsals of old entrapment in danger, dissociative states with unstoppable irrational urges, hallucinations, mood lability and impulsivity. They are notoriously costly in utilization of acute services [1–5]. This study investigates a clinical intervention that may offer quick reduction of symptoms to reduce those costs. The experimental intervention is part of the Cape Cod Model of psychotherapy .
Behavioral crises in chronic post traumatic disorders
There is a domain of study that aspires to demonstrate that complex PTSD and BPD are related. These studies attribute to both a hypothesized post traumatic mechanism of disorder resulting from dependency in a relationship with mistrusted caretakers, individuals or institutions [7, 8]. Those caretakers controlled the dependent's means to ascertain and correct the caretakers' trustworthiness as well as the dependent's means to leave the relationship. Differently from simple PTSD, survivors of that particular trauma recreate semblances of dependency in later relationships, semblances of others' betrayal and of their own powerlessness.
The hypothesized shared mechanism of disorder for complex PTSD and BPD has not been investigated empirically. Still, their similarity in personality development and the phenomenology of their crises is evident. Guilt, shame, loss of faith in the benevolence of others, hopelessness, mistrust and avoidance of primary relationships are personality attributes of persons with complex PTSD [9–16], a 'unique trademark' that distinguishes it from simple PTSD . As these attributes were found also in BPD, some authors subsumed them in concepts of post traumatic personality disorder [15, 18]. The description resembles the diagnostic category of the International Classification of Diseases, 10th edition (ICD-10)  called 'enduring personality changes after catastrophic experience', such as lengthy captivity in adult life.
The crises of both complex PTSD and BPD are characterized by the sufferer's instigation of others to behave in ways that resemble entrapment by mistrusted caretakers . That activity is commonly recognized in the clinical literature as 'repetition compulsion', with various explanations [21–27]. In complex PTSD and BPD, the classic symptoms of post traumatic disorder, vigilance, numbness and flashbacks, happen in the course of repetition compulsion. For the purposes of this study, the term 'behavioral crisis' is used only for this complex presentation. A typical description of it is given in the next paragraph, as it was provided to clinicians for recognition of prospective subjects, before diagnostic screening.
Typical behavioral crises are a composite of many unresolved semblances of dependency in mistrusted relationships from one crisis to the next. The person's judgments about blame for the entrapment become ever more uncertain. For example, a man who hears hallucinatory voices saying 'you are a loser' cannot be sure if that judgment was inflicted on him by his father who used to lock him in the closet or by his mother who never brought him the food and water that she promised. The voice sometimes sounds like an admired teacher's whose class he never dared attend. His recollection shifts with endless doubts about who wanted him in the role of loser, including himself. Sometimes he doubts the factuality of a particular event altogether. The means of testing others' commitment grow ever stranger and costlier, in terms of sacrifices, demands and acts of atonement. He self-mutilates, binges on food or sex, menaces for trivial wants and against trivial dangers. The force and repetitiveness of these activities blind him to his own intervening needs and to others' feelings and reasons. Afterwards, he remembers all that blundering very inexactly.
Efficacy of treatment
Studies of the efficacy of treatments for behavioral crises are reviewed here in aggregate, for both BPD and PTSD. The distinction between simple and complex PTSD had not been made yet at the time of these studies and reviews.
Studies of outcomes with long-term pharmacotherapy for these disorders pertain mainly to mitigation of behavioral crises (for example, of irrational and shifting moods, impulsivity and psychotic symptoms). In summary, reviews of those studies find the evidence sparse and inconclusive, with trends in support of modest improvement of each symptom for selected drugs [28–40]. Professional practice guidelines emphasize the symptomatic nature of relief with medication [36, 41–43]. As such, medication is a useful adjunct to psychotherapy that, in turn, may repair the mechanism of crises, thereby making medication unnecessary. Some authors explain the limitations of pharmacotherapy by the nature of BPD and complex PTSD as disorders of social learning [30, 44].
For long-term psychotherapy as well, studies of outcomes with particular schools [45–51], reviews of studies [33, 52–64] and practice guidelines [36, 42, 43] agree that crises become fewer, with less acting out and intensity. Patients consistently become less angry, labile and impulsive; they self-mutilate less and make fewer suicide gestures.
In recognition of how difficult it is to engage patients in new insights during crises, much of psychotherapy in the intervals promotes the value of self-policing, self-soothing and welcoming others' help with the same. Nonetheless, several programs had similar results with an abbreviated, intense course of various psychotherapies, tailored for crisis times [65–74].
Reparative and symptomatic psychotherapy
Beyond reviewing the efficacy of long-term psychotherapy for reduction of crises, the theory underlying the experimental intervention makes it relevant to review the efficacy also for deep structural reparation of the mechanism of disorder. The theory of the Cape Cod Model claims that the experimental intervention achieves reparation of that mechanism, in measurable increments from one application to the next. This study introduces pilot instruments to begin measuring the patient's experience of modification of the putative mechanism.
Remarkably, the efficacy for reduction of behavioral crises cited in the preceding section is similar among the different schools of psychotherapy [47, 58, 75]. For the early stages of therapy, the different schools borrow among them short-term techniques that mitigate burdensome symptoms. By design, all therapies included in these reviews advise patients to forego expectations for intimacy in unfulfilled old relationships or in new ones until after in-therapy lessons accumulate. They all promise gradual deep correction of the patients' response to danger in intimate relationships, though via sharply different interventions. So far, the evidence suggests success from the techniques that the different schools share in early phases. Results for later phases, however, which they each promise to obtain differently, have not been demonstrated yet. Outcome studies show consistently that patients become more compliant with treatment, mingle with others more comfortably and take better care of themselves [24, 47, 61, 62]. However, the evidence is less consistent for improvement of symptoms in the intervals between behavioral crises, that is, anxiety and depression, dysphoria, paranoia and dysfunctional beliefs [24, 47, 58, 61, 62]. There is no significant improvement for a residual cluster of symptoms, a 'subsyndrome'  of hopelessness, emptiness and fear of intimacy.
With these concerns in mind, Benjamin and Linehan proposed to measure therapy's efficacy in degrees of reparation of the 'core dysfunction' in complex post traumatic syndromes [76–78]. Reparation should show as competence in intimate relationships, having 'a life worth living', beyond the passage 'from loud to quiet desperation'. They envisioned a research program that will identify the true core dysfunction as hypothesized by competing theories and measure its gradual correction. Otherwise 'what is a "symptom" to one [author] may be the mechanism controlling a disorder to another' . Benjamin nominates 'underlying destructive attachments' as the core dysfunction to investigate. A concept akin to Benjamin's, that of regressive social learning, guides the Cape Cod Model of treatment during and between crises .
The Cape Cod Model
According to the Cape Cod Model, the irrational and unstoppable activity of behavioral crises is the sufferer's way of coping with perceived entrapment in a current treacherous relationship. The entrapment, whether true or false, consists of the perception of betrayal which the person cannot ascertain one way or the other. The sufferer can neither become certain enough of the other's trustworthiness to recommit to the current relationship, nor can he become certain enough to move on, confident to ascertain betrayal in later relationships.
The mechanism of disorder is in the sufferers' regressive method of testing the other's fidelity to promises and expectations, commonly recognized as repetition compulsion . Regressive testing elicits more semblances of betrayal, which compounds their sense of their own entrapment. Each round of testing renders them more uncertain than before. This circular, self-defeating activity replicates the method that survivors of dependency in mistrusted relationships learned as the way to test their caretakers' trustworthiness.
The Cape Cod Model explains the course of chronic post traumatic disorder over the lifetime in terms of a social breakdown syndrome. Cumulatively, from one crisis to the next, survivors of entrapment in failed caretaking relationships mislearn that love is indecipherable and, therefore, a dangerous gamble. They grow simultaneously more desperate for intimacy and more apprehensive of it. In response to the survivors' wasteful, repetitive testing, others also become tentative about offering opportunities for intimacy to them. The social breakdown often takes hold despite psychotherapy because patients have reasons to keep their regressive experiments private from their therapist and they are hardly aware of them as the source of behavioral crises. To observers, crises appear to emerge in response to incidental reminders of old trauma, even trivial ones. Over time, patients mislearn from their private experiments faster than they make progress in therapy with analysis of the transference and of scenarios of old betrayals.
The crisis intervention of the Cape Cod Model aims for quick resolution by offering immediate, rudimentary proof that trustworthiness is testable, directly in the troubled relationship or in an opportune relationship beyond this loss. Clinicians propose ways to make intimacy safe, ways which patients cannot envision on their own, to replace repetition compulsion, the mechanism of disorder and the source of all symptoms. From resolution of one crisis to the next, the experimental intervention cumulatively improves the sufferer's vulnerability in future relationships.
Outside crises, psychotherapy with the Cape Cod Model is designed to anticipate crises and abort the social breakdown syndrome. From the beginning of therapy, clinicians join patients in seizing opportunities for increments of intimacy in life-defining relationships. The patients' goal is to test others' trustworthiness effectively, in order to let go of repetition compulsion.
The study was approved by the institutional review board of the Massachusetts Department of Mental Health. It was registered prospectively with the Protocol Registration System of the National Institutes of Health.
The hypothesis for this study is that all symptoms of behavioral disorder will show greater improvement with the experimental intervention than with treatment as usual within 8 to 24 h from initiation of treatment.
Participants and recruitment
Control group (n = 26)
Experimental group (n = 32)
P = 0.03
< High school
High school and General Educational Development (GED)
≥ 1 year college
Subjects were judged by licensed master's level clinicians to be dangerous to themselves or others on account of behavioral crisis, as described in the Introduction. Those patients were approached for informed consent to participate in the study 8 to 24 h from initiation of treatment. If they accepted, they were screened for BPD (n = 54) or PTSD (n = 4) by structured interview. Clients were ineligible for the study if there was evidence of brain damage or current intoxication or withdrawal from addictive substances. All clients approached for recruitment accepted, and of those who met the diagnostic criteria all but one in each group completed the study.
The Structured Clinical Interview for Diagnostic and Statistical Manual of Mental Disorders, 4th edition (DSM-IV) Axis I Disorders, Clinical Version (SCID-I) and the Structured Clinical Interview for DSM-IV Personality Disorders (SIDP-IV) were used for diagnostic screening for PTSD and BPD, respectively.
Brief Psychiatric Rating Scale (BPRS)
The BPRS consists of 18 items and 5 subscales. The items are rated from 1 to 7 by observation and interview, according to rating instructions. For the purpose of data analysis, the scores were converted to a 0 to 6 scale so that absence of a symptom would equal a zero score. For both the experimental and the control subjects the BPRS was administered upon admission to CSU, before treatment, by master's level clinicians of a separate service who assessed and triaged psychiatric emergencies. These preadmission raters achieved inter-rater reliability (mean intraclass correlation coefficient (ICC) = 0.97 range 0.831 to 0.995) for item and total BPRS scores with the raters who administered the rest of the protocol after treatment.
Brief Symptom Inventory (BSI)
This self-administered questionnaire consists of 53 items and 9 subscales. The ratings are from 0 (not at all) to 4 (extremely). After treatment, subjects rated their current symptoms and retrospectively rated their symptoms prior to treatment.
Client observation total and item scores (mean (SD))
Experimental group (N = 32)
Control group (N = 26)
Total Client Observation
Repetitively self-defeating behavior
Self-absorbed or entranced
Misperceptions of reality
Ever shifting priorities
Is needy, with ever shifting wants
Client self-observation total and item scores (mean (SD))
Experimental group (N = 32)
Control group (N = 26)
Total client self-observation
Mentally overloaded, overwhelmed
Helplessness and depression
Inability to make judgments of priorities
Inability to make judgments of trust
Finally, the research staff obtained a list of medications before and after treatment in order to ascertain if differences in prescribing patterns between the two groups might account for the results in the experimental condition.
Prospective subjects for both conditions were given the BPRS prior to their admission to the three CSUs. After admission, prospective subjects for the experimental group were treated with the crisis intervention according to the Cape Cod Model. They were offered all methods of symptom containment and diversion at first (for example, medication, grounding, relaxation, and so on) in order to lessen the force of their absorption and make the therapist's voice heard. The experimental subjects were allowed to continue or to modify their long-term medication regimen as they chose, after advice about realistic expectations from it. The reason was to avoid contamination of the results by a negative placebo effect from refusing to prescribe drugs for which, in the prescriber's opinion, patients had a superstitious preference. The subjects of the control group were given treatment as usual, consisting of medication, supportive psychotherapy, problem solving, occasional analysis of the transference and elements of Dialectical Behavioral Therapy.
In both conditions, recruitment, informed consent and testing were initiated and completed between 8 and 24 h from the beginning of treatment (that is, from the subject's examination by a psychiatrist and formulation of a treatment plan by the clinical team). Research assistants ('raters'), who were master's level clinicians from outside the CSUs, a different contingent for each CSU, implemented that entire post-treatment procedure. The variation from 8 to 24 h was for administrative reasons, such as when raters were available and did not interfere with the subjects' other commitments.
All raters had undergone the same training and testing for inter-rater reliability. The raters explained the procedure and human rights to the prospective subjects and obtained informed consent. Then they administered the structured diagnostic interviews according to the DSM-IV. For the qualified subjects, the raters administered the various measures and then interviewed the staff. Finally, they obtained the medication regimen of each subject for before and after admission.
Raters, subjects and clinical staff at all three sites were informed about the general purpose of the study, namely to compare the intervention to treatment as usual. Raters at all sites were blind to the hypothesis and to the technique used. Furthermore, clinical staff at the two control sites were blinded to the experimental hypothesis and technique, so as not to become tempted to improvise and contaminate their treatment as usual. Raters knew the designation of each site as experimental or control.
The object of the present study is the first phase of the intervention. The complete intervention takes place for 1 to 2 h initially and then in several shorter sessions over a period of 1 or 2 days. Every patient in behavioral crisis has a latent story of a current relationship with an object of need and fear and the therapist's first purpose is to elicit that story. Typically, the patient is loudly preoccupied with desire, mistrust, worthlessness and powerlessness in various relationships, including trivial or hallucinated ones. The therapist stimulates that preoccupation in hope of eliciting tangential associations to the relationship that matters. In the earlier example of the man who heard a voice judging him, the therapist nudges him along, 'Who thinks you are a loser...you don't know who hurt you more, your father or your mother...locked in the closet... who treats you like a loser today?'. With that nudging, the patient gropes around 'Nobody...who cares what my mother thinks...I saw her at the market yesterday, from behind the shelves...she must have seen my car outside...every day I go...who cares!'. The therapist recognizes the mother as the object of rising need and fear and speaks to that with empathy and a hint of hope, for example, 'That is no way to live!'. The patient responds with a sudden lull in his unstoppable, irrational activity. In that lull, the therapist proposes that there is indeed a better method to become sure of the mother's intentions, one way or the other, and of others' in the future.
Engagement in that proposition replaces the patient's frantic regressive testing and symptoms cease for the duration of that engagement. Over the course of the next 1 or 2 days, the patient typically breaks off and then reestablishes this therapeutic engagement, whereby symptoms resurge and cease again. Patients break the engagement because of good or bad, real or perceived developments in the troubled relationship that seduces them to make private judgments of trust again. Modulation of particular symptoms with medication, grounding, and so on, is useful to facilitate engagement and reengagement in the therapeutic proposition, but such measures become unnecessary for hours at a time, when the engagement is in effect.
Statistical analysis plan
The statistical analysis plan was developed to test the hypothesis for greater reduction of symptoms in the experimental group than the control group. Analysis for between-group differences was performed for education and marital status using χ2, gender using Fisher's exact test, and age using the t test. A correlation matrix was performed to examine for any associations between the demographic variables and the total score of the BPRS, BSI, and Client Observation Scale. General linear model (mixed model analysis of variance (ANOVA)) was used to examine both within and between group differences in total BPRS, total BSI and total Client Observation scores at pretreatment and at follow-up. There was a significant difference between the two treatment groups at baseline on the pre-BPRS total score (P = 0.002) and gender (P = 0.027) therefore they were used as covariates in the analysis. Correlations for the BSI total showed a significant difference at baseline for gender (P = 0.027) between the two treatment groups, and this was used as a covariate for the BSI analysis. The staff Client Observation total correlations found a significant difference (P = 0.000) in prescores and gender (P = 0.027) between the two treatment groups and they were used as covariates in the analysis.
A hierarchical regression was performed to investigate the contribution of the variables to the variance in the total BPRS follow-up score (the dependent variable). A correlation matrix to examine for any associations between the independent variables found marital status and education to be highly correlated (r = 0.369, P = 0.003). Therefore, in the regression the independent variables were entered in four blocks with gender, age and education in block 1, marital status in block 2, pretreatment BPRS total score in block 3 and the two treatment groups (control and experimental) in block 4.
There was no significant difference in education, marital status, and age between the two treatment groups (see Table 1 for demographic characteristics for the two groups). There were significantly more females than males (P = 0.03) in both treatment groups. The general linear model for within and between group differences (control versus experimental) found a significant difference in prescores in the total BPRS score. Box's test of equality of the covariance matrices and Mauchly's test of sphericity were not significant, therefore assumptions were met. The mixed model ANOVA revealed that the main effect found significantly greater improvement in the follow-up BPRS total score for the experimental group (M = 12.9) than the control group (M = 24.7) taking into account the covariates gender and Pre-BPRS score F = 29.23, P < 0.001, partial Eta2 = 0.35.
A hierarchical regression analysis was used to determine the effect of independent variables on the variance in the BPRS total score. Independent variables were entered into the equation in four blocks as detailed in the Methods section. In the final model neither the demographic characteristics of gender, education, age (R2 = 0.037, F change = 0.693, P = 0.560) and marital status (R2 = 0.044, F change = 0.364, P = 0.549) nor the pre-BPRS score (R2 = 0.077, F change = 1.882, P = 0.176) contributed significantly to the change in the BPRS follow-up score. Only the group (control versus experimental) (R2 = 0.402, F change = 27.70, P ≤ 0.001) made a significant contribution toward the change in the BPRS follow-up score, accounting for 33% of the variance.
Brief Psychiatric Rating Scale (BPRS) total and subscale scores (mean (SD))
Experimental group (N = 32)
Control group (N = 26)
Withdrawal - retardation
Anxiety - depression
Hostility - suspicious
There was no significant difference in the BSI total score between the control group (M = 84.1) and the experimental group (M = 74.2) at follow-up taking into account the covariate gender F = 1.031, P = 0.314, partial Eta2 = 0.018.
The mixed models ANOVA for the staff-rated Client Observation total found the Box's M test of equality of the covariance were significant with a higher mean score for the experimental group (M = 19.66) than the control group (M = 12.85) at baseline, thus the pretreatment Client Observation total score and gender were used as covariates. There was a significant difference between the groups at follow-up with greater improvement in the experimental group (M = 7.0, F = 11.859, P = 0.001, partial Eta2 = 0.180).
Since there was a significant improvement in the staff-rated Client Observation total score of the experimental group, each of the items were examined using the mixed models ANOVA with the presubscale score and gender as covariates. The items were examined to look for differences in the different types of behaviors measured. All items, except for 'misperceptions of reality' (F = 3.704, P = 0.06, partial Eta2 = 0.064), had significant improvement in the experimental group at follow-up (see Table 2). (Repetitively self-defeating behavior (F = 7.397, P = 0.009, partial Eta2 = 0.120), self-absorbed or entranced (F = 11.440, P = 0.001, partial Eta2 = 0.175), ever shifting priorities (F = 20.927, P ≤ 0.001, partial Eta2 = 0.279), and is needy, with ever shifting wants (F = 14.98, P ≤ 0.001, partial Eta2 = 0.217).) The items 'ever shifting priorities' and 'is needy, with ever shifting wants' had the largest effect sizes, suggesting they contributed the most to the change in the staff-rated Client Observation scale in the experimental group.
The mixed models ANOVA for the client self-report total score found the Box's test of equality of the covariance matrices and Mauchly's test of sphericity were not significant, therefore, assumptions were met. There was a significant difference in prescores and gender between the experimental and control groups, thus prescore and gender were used as covariates. There was a significant difference between the groups at follow-up with greater improvement in the total score of the client self-report in the experimental group (F = 6.246, P = 0.016, partial Eta2 = 0.104). The items were examined to look for differences in the types of emotional states measured (see Table 3). Two of the items, mentally overloaded, overwhelmed (F = 6.037, P = 0.017, partial Eta2 = 0.101) and circular rumination (F = 4.081, P = 0.048, partial Eta2 = 0.07), were found to have greater improvement with a medium effect size in the experimental group than the control group at follow-up.
On admission to the crisis service there was no significant difference (P = 0.26) in the number of people who had stopped taking their medicine (control 42% n = 11, experimental 25% n = 8). However, there was a significant difference (P ≤ 0.001) between the groups in the medication prescribing patterns. Medication prescribing patterns were divided into two groups, (a) those who had no change from the preadmission usual medication and dosage including restarting medication at previous dose, and (b) those who had their medication and/or dose changed. In the experimental group, 59% did not have changes made to their original medications. Changes to the medication regimen occurred more frequently in the control group, 92% versus only 41% of the experimental group.
There was a significant difference (P = 0.01) in the number of drugs between the control (M = 3.7) and experimental (M = 1.6) groups.
The results from the BPRS and from Client Observation by staff support the hypothesis that the experimental intervention would provide broad reduction of symptoms, as compared to treatment as usual. The finding was significant (P ≤ 0.001) for total BPRS and four of five subscales, 'withdrawal/retardation', 'anxiety/depression' and 'hostility/suspicious', also (P ≤ 0.05) for 'activation'. Similarly, the finding was significant (P ≤ 0.001) for total Client Observation and for four of five items, 'self-absorbed/entranced', 'ever shifting priorities' and 'needy, with ever shifting wants', also (P ≤ 0.05) for 'repetitively self-defeating behavior'. The results from the BSI show no significant improvement for either condition. From Client Self-Observation, the total score and scores for two of its nine items, 'mentally overloaded/overwhelmed' and 'circular rumination', are in favor of the experimental intervention (P ≤ 0.05). The BSI and Client Self-Observation were the two instruments that used retrospective ratings for behavior before treatment. The experimental subjects received significantly fewer psychotropic medicines than the controls (P = 0.01).
Patterns of symptom improvement
Aside from providing evidence for improvement among symptoms, the two pilot instruments, Client Observation and Client Self-Observation, were designed to obtain ratings for symptoms of interest, more specific for complex PTSD and BPD. As intended, the results from this study provide guidance for the further development of these pilot instruments.
According to the theory of the Cape Cod Model, the core dysfunction consists of repetitively regressive testing of someone's trustworthiness. The items 'repetitively self-defeating behavior' in Client Observation and 'mental overload', 'circular rumination' and 'inability to make judgments of trust' in Client Self-Observation depict that overall state of mind. Other symptoms, for example, 'self-absorbed/entranced', 'ever shifting priorities', 'hallucinations' and 'helplessness/depression', derive from the core dysfunction and they should surge or subside with it. Therefore, success of the experimental intervention should result in improvement across the board. However, treatment as usual, if presumed symptomatic, should result in uneven improvement only with continual effort. It should target behavior that is most burdensome to the patient or others (for example, hallucinations, urges to cut, neediness).
For the experimental group, Client Observation measured broad improvement, for four of five items, 'self-absorbed/entranced', 'ever shifting priorities' and 'needy, with ever shifting wants' (P ≤ 0.001), also for 'repetitively self-defeating behavior' (P ≤ 0.05). Among nine Client Self-Observation items, experimental subjects showed significant improvement for two of the three 'core' items, 'mental overload' and 'circular rumination' (P ≤ 0.05). Improvement for the control group did not reach significance for any item of either scale.
Both groups gave themselves high pretreatment scores for the single most specific item, 'inability to make judgments of trust' (Table 3). This finding indicates that the control subjects did recognize the prevalence of that item in their mental operations retrospectively, when they were cued by the research raters, although presumably they had not been led to discover it during treatment, as the subjects in the experimental condition had. The possibility, however, that control subjects were suggestible to the raters' cues must be explored in the future.
The place for medication
The results corroborate the prevailing understanding that medication mitigates certain symptoms and the reparative treatment of these disorders is good psychotherapy [41–43]. Subjects in the control group had more medication changes (P ≤ 0.001) and received a larger number of drugs (P = 0.01) than experimental subjects. The efficacy of medication is best for quick reduction of excessive negative emotions and impulsivity, among all symptoms. It coincides with the timeframe of this study, 8 to 24 h of treatment. The hypothesized reparative intervention for the experimental group resulted in broad improvement, as noted above, compared to no significant improvement for the control group, even for negative emotions and impulsivity, in that time.
The interface of therapy and the natural course of crises
Behavioral crises eventually subside in their natural course, without treatment. It is of interest to know how that factor may have contributed to the results from the experimental or the control group. Successful crisis interventions of different kinds must work either by enhancing the natural course or by making patients' behavior effective in a different way.
The theory guiding the experimental intervention explains behavioral crises as response to entrapment in treacherous intimacy in the present; then, it resolves them with correction of the hypothesized mechanism that compounds the entrapment while adhering to the goal of safe intimacy. By the same theory, treatment as usual should also shorten the duration of crises, however, by helping patients forego intimacy in the foreseeable future. Such is the natural closure of behavioral crises. Treatment as usual expedites it with symptom modulation and redirection, that is, reinvestment in evident priorities for non-intimate relationships. It creates conditions conducive to rethinking the futility of regressive testing and to letting go of the troubled opportunity for intimacy at hand.
With this understanding, ending a crisis with the experimental intervention has a cumulative value, beyond greater reduction of symptoms. It treats crises as stepwise lessons in management of the risks of intimacy and as the patient's introduction to more methodical lessons later, in anticipation of crises. To assess that cumulative value of therapy, future studies should measure grades of self-sufficiency in managing crises of trust without therapy.
Lessons from the lifelong natural course
In addition to lessons from study of psychotherapy outcomes, there are good lessons to learn from studying the lifelong natural course of BPD and PTSD, that is, with little and unmethodical or no treatment . One lesson that emerges resembles the concept that guides the experimental intervention, namely that it is possible for patients to seize opportunities for intimacy safely from the beginning of therapy. A second lesson is that doing so may be also necessary for therapy.
So far, the stepwise outcome with psychotherapy of different kinds has been remarkably parallel to that without treatment, but with a different pace. The typical natural course of these disorders leads to lesser frequency and intensity of crises, though with lasting avoidance of intimacy and emptiness [79–86]. Psychotherapy brings about a similar reduction of crises [47, 58, 75] seven times sooner . Eventually, it labors with a similarly lasting avoidance of intimacy and emptiness [64, 76, 77]. But, then, in a few striking exceptions, sufferers without treatment somehow grow confident in intimate relationships, as someone's mother, brother or lifemate, and stay free of symptoms [33, 80, 87]. And, just as in the natural course, a few patients somehow take leaps of competence in particular relationships that cannot be attributed to progress in therapy .
A host of findings taken together begin to discern the forces at the fork, where the course of a few cases parts from the majority [5, 87–93]. The emerging picture is that, with or without therapy, sufferers learn to preempt crises by avoiding experiments with intimacy, apparently from growing resignation. Those in therapy learn to avoid opportunities for intimacy faster than they learn to seize them safely with help from therapy . But, for a few, either without or outside therapy, somehow someone helps them manage the dangers of love effectively, giving them stepwise, on the job lessons safely, without disorder. Learning the method of these natural healing agents should be instructive for psychotherapy .
A spectrum of post traumatic disorders
The typical behavioral crises of complex PTSD and BPD resemble crises of dissociative identity disorder (DID), although the DSM-IV Text Revision (DSM-IV-TR)  omits that description from the criteria for DID. A recent line of inquiry entertains the notion of a spectrum of chronic post traumatic disorders comprising complex PTSD and BPD, also DID [9–13, 96, 97]. The inquiry is about identifying an essential mechanism that makes them all more alike than different. If that hypothesis is correct, one might extrapolate the results of this study to treatment for DID crises as well [98, 99].
The evidence presented in favor of the experimental intervention indicates that measurable in-depth improvement is possible even with treatment of a single crisis. If further studies prove this true, the outlook of crisis intervention will change, from palliation in the intervals of reparative psychotherapy to opportunity for in-depth reparation in its own right.
The challenge following this study is to ascertain that the broad reduction of symptoms demonstrated here ensues from the singular improvement that distinguishes the experimental intervention from other schools of treatment. Of course, the BPRS and the BSI do not measure repetition compulsion as such, nor do the instruments used in the cited studies capture the variously hypothesized core dysfunction in the operations of intimacy. Instruments must be developed to isolate the effect that each school of psychotherapy proposes differently as 'necessary and/or sufficient... [for] therapeutic progress' .
Furthermore, the pivotal effect of each therapy must be measured when it matters (that is, while patients are torn between need and fear in intimate relationships that define their future, unable to prove them safe and unable to imagine better ones). To date, outcome studies show that lessons from therapy's laboratories of intimacy, such as reworking old betrayals, reframing beliefs and analysis of the transference, do not generalize sufficiently to make intimacy in the social mainstream safe [62, 64, 76, 77, 94].
Another domain where the nature of the pivotal therapeutic intervention could be captured is the natural course of BPD and PTSD of DID. There are lessons to learn in studying how people with these disorders salvage few opportunities for intimate relationships compared to the many opportunities that they forego or that end in disorder [66, 73]. Research could discern what makes the difference, whether the characteristics of patients or of their partners, skills and motives; then, therapy could learn to cultivate the necessary and sufficient ingredients directly in a patient's troubled relationships, in opportune time.
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