Heritability of personality disorders in childhood: a preliminary investigation

The heritability of personality disorder features was investigated in 112 child (ages 4-15 years) twin pairs (70 monozygotic and 42 dizygotic pairs). Parents assessed personality disorder features using the Coolidge Personality and Neuropsychological Inventory for Children (CPNI; Coolidge, 1998) that measures 12 personality disorders according to the criteria in the Diagnostic and Statistical Manual of Mental Disorders (DSM-IV) (American Psychiatric Association, 1994). Structural equation model-fitting methods indicated that the median heritability coefficient for the 12 scales was .75 (ranging from .81 for the Dependent and Schizotypal Personality Disorder scales to .50 for the Paranoid and Passive-Aggressive Personality Disorder scales). These results suggest that childhood personality disorders have a substantial genetic component and that they are similar to heritability estimates of personality disorder traits in adults and counter hypotheses that only temperaments and higher-order personality disorder traits have significant genetic components (Paris, 1997).     

Endophenotypes and the diagnosis of personality disorders

It has been suggested that psychiatric diagnosis should come to depend on endophenotypes, in order to define more precisely the mechanisms behind mental disorders. This construct is associated with the assumption that mental processes can be reduced to activity at a neuronal level. The approach has had a strong influence on the conceptual basis of proposals for DSM-5, but could be consistent either with categorical or dimensional diagnosis. However, application of endophenotypes to personality disorders is unlikely for the foreseeable future, given an insufficient knowledge of etiology and pathogenesis.     

A proposed typology of personality disorders based on Andras Angyal's system principles: a preliminary note

A classification of personality disorders is proposed based on a typology derived from Andras Angyal's theory of personality, which has two trends (autonomy and homonomy) and two patterns (vicarious living and noncommitment).     

从人际关系看人格--认知-情感系统理论的视角

人格的认知—情感系统理论(cognitive-affective system theory of personality,简称CAPS)被视为是与大五人格理论齐名的一种人格理论。该文拟从个体外部的人际关系层面来阐述该理论,以加深对理论的理解。然后,又从CAPS与其它人际关系理论的契合说明该理论是一种整合性的人格理论。最后,指出了CAPS的优点和局限性,并由此对人格研究的未来发展方向进行了探讨。     

Five-factor model prototypes for personality disorders: the utility of self-reports and observer ratings

The current study examined the prototype-matching technique for using the five-factor model (FFM) of personality to assess personality disorders (PDs) and their correlates. The sample was composed of 69 psychiatric patients, most of whom suffered from affective or anxiety disorders. The participants were predominantly outpatients (78%), Caucasian (94%), and women (58%). NEO Personality Inventory (NEO-PI) data from these patients and informants were available for deriving PD prototype scores. The results supported four conclusions. First, the FFM prototype-matching method is useful for clinical samples. Second, agreement between self-reports and information from significant others (SOs) using this method is good compared to previous results. Third, this agreement varies systematically with the observability of the PD criteria. Fourth, the value of self- and other-reported personality information depends on the rating source of the outcome variables. Other-reported information provides incremental utility in predicting impairment and interpersonal distress rated by clinicians and significant others.     

Accurate diagnosis of personality disorders: Some critical factors

Issues pertaining to the accurate diagnosis of personality disorders are discussed from a scientist-practitioner perspective. An attempt is made to distinguish state (Axis I) from trait (Axis II) disorders, and personality (“normal”) from personality disorders (“abnormal”). The reliability and validity of personality disorder diagnoses are explored, and the four criteria for all personality disorder diagnoses are clarified: These criteria are: 1) presence of psychological symptomology, 2) stability over time, 3) consistency across situations, and 4) under-responsiveness to currently available treatments. Also, a distinction is made between categorical and dimensional diagnostic criteria, similar to the distinction between personality type and trait approaches. Recommendations are provided for improving the clinical and empirical work in this area, and implications for treatment are discussed.     

Sex bias in the diagnosis of personality disorders: A different approach

There has been considerable controversy regarding a possible sex bias in the diagnosis of personality disorders (PDs). However, prior research has at times confused a bias within clinicians who fail to adhere to the diagnostic criteria with a bias within the diagnostic criteria. Rather than assess whether females are more likely than males to be diagnosed with a respective disorder, the current study assesses whether the thresholds for the diagnosis of female-typed PDs are lower than the thresholds for male-typed PDs. Subjects completed two self-report inventories for the DSM-III-R personality disorders, and three inventories that assessed 30 aspects of personality dysfunction organized with respect to social dysfunction, occupational dysfunction, and personal distress. There was no indication that the diagnostic thresholds for personality disorders that occur more often in females is lower than the thresholds for the personality disorders that occur more often in males. The implications of these findings for the issue of sex biased diagnoses are discussed.     

The suicidal risk in severe personality disorders: differential diagnosis and treatment.

This article describes the clinical approach to patients with severe personality disorders who present suicidal intention and behavior, developed at the Personality Disorders Institute of the Department of Psychiatry at Cornell University Medical College and the Westchester Division of the New York Presbyterian Hospital. It describes the diagnostic evaluation of patients' suicidal potential, personality disorder, and the presence or absence of a spectrum of regressive illness. The analysis of the combined features in these three symptomatic domains determines alternative strategies of psychotherapeutic and psychopharmacological interventions. Within these strategies, transference-focused psychotherapy is described as a specific psychodynamic psychotherapy geared to treat characterologically based suicidal and parasuicidal tendencies in the context of the treatment of the patient's personality disorder.     

Opinions of personality disorder experts regarding the DSM-IV personality disorders classification system

OBJECTIVE: To survey the opinions of personality disorder (PD) experts on possible revisions in the classification system for PDs in the DSM-V. METHOD: Four hundred members of two international associations, the Association for Research on Personality Disorders, and the International Society for the Study of Personality Disorders, were asked to take a 78-item web survey. RESULTS: Of the experts who completed the survey (N = 96), 74% felt that the DSM-IV's categorical system of PD diagnosis should be replaced. Eighty percent felt that PDs are better conceived of as personality dimensions or illness spectra, than as categories. The most frequently endorsed alternative system for PDs was a mixed system of categories and dimensions. Most experts preferred the PDs to remain on Axis II. Only 31.3% wanted the term, "Borderline Personality Disorder," retained in the DSM-V. CONCLUSIONS: A clear majority of the PD experts were dissatisfied with the current diagnostic system for PDs.     

The adolescent psychiatric patient with processing deficiencies: some personality characteristics and treatment strategies

The relationship between perceptual processing and psychiatric conditions is of expanding clinical significance, and the two may be related because of the influence of processing on ego development. Adolescent psychiatric patients with processing difficulties demonstrate some unusual personality characteristics and modes of thought, including a replacement orientation (each event or relationship replaces another) rather than an additive orientation; omnivalence (all interests and relationships have equal attraction), and synecdochism. Special treatment strategies for such patients are suggested, which include: redaction in psychotherapy, a tracking system for scheduling, and reduction of the stimulus level in living arrangements.     

The cognitive-affective neuroscience of the unconscious

There is an ongoing debate about how best to conceptualize the unconscious. Early psychodynamic views employed theories influenced by physics to explain clinical material, while subsequent cognitivist views relied on computational models of the mind to explain laboratory data. More recently, advances in cognitive-affective neuroscience have provided new insights into the workings of unconscious cognition and affect. We briefly review some of this recent work and its clinical implications.     

Context processing in schizotypal personality disorder: evidence of specificity of impairment to the schizophrenia spectrum

Working memory abnormalities, which are particularly pronounced on context processing tasks, appear relatively specific to schizophrenia spectrum illnesses compared with other psychotic disorders. However, the specificity of context processing deficits to schizotypal personality disorder (SPD), a prototype of schizophrenia, has not been studied. The authors administered 3 versions of the modified AX Continuous Performance Test and an N-back working memory test to 63 individuals with SPD and 25 with other personality disorders, as well as 42 healthy controls. For the AX Continuous Performance Test standard and degraded versions, there was a significant Trial Type x Delay x Group interaction, as SPDs made significantly more errors reflecting poor maintenance of context and fewer errors reflecting good maintenance of context. SPDs also demonstrated poor performance on the N-back, especially at the 2-back condition. Context processing errors and N-back accuracy scores were related to disorganization symptoms. These findings, which are quite similar to those previously reported in patients with schizophrenia, suggest that context processing deficits are specific to the schizophrenia spectrum and are not a reflection of overall psychopathology.     

Testwiseness: some evidence for the effect of personality testing on subsequent test results

The assumption is presented of the test-taker as a hypothesis-generating organism who can become "testwise." Testwiseness is defined as a stable skill, acquired by test-taking experiences, by which an individual can make test responses conform to a desired response pattern. Forty-three college students completed two forms of The Personality Research Form (PRF) and a rank ordering of their predicted personality need pattern. Results show significantly higher correlations of PRF predictions in the second administration. Analyses show PRF profiles, not predictions, to have been modified. Furthermore, high testwise subjects had higher needs for Understanding and Nurturance, and lower needs for Aggression and Defendence than low testwise persons. The importance of considering testwiseness, given trends in society encouraging access to psychological records, is discussed.     

Sex bias in the diagnosis of personality disorders: an evaluation of the DSM-IV criteria.

This study considered whether the Diagnostic and Statistical Manual of Mental Disorders (4th ed.; American Psychiatric Association, 1994) is biased against women by requiring less dysfunction for the personality disorders that are more commonly diagnosed in women (e.g., histrionic). Clinicians estimated the extent of social dysfunction, occupational dysfunction, and personal distress suggested by each of the diagnostic criteria for 6 personality disorders. The results failed to suggest a bias against women, as there was no difference in the overall level of dysfunction associated with the female-typed personality disorder diagnostic criteria (fewer criteria are also required for the male-typed diagnoses). However, the considerable variation in dysfunction across disorders and criteria, and the minimal degree of impairment implied by some of the diagnostic criteria, also raise more general issues that should perhaps be addressed in future editions of the diagnostic manual.     

Gender bias in the diagnosis of personality disorders: the roles of base rates and social stereotypes

In all three studies described in this article, novices were trained to associate traits from the DSM-IV Cluster B personality disorder categories with four letters of the alphabet. Novices were also taught various gender associations (i.e., "base rate" information) with the categories (none, stereotype-consistent, or stereotype-inconsistent). Results showed that when no gender associations were taught (Study I), case gender did not affect ratings of case vignettes. When associations were consistent with social stereotypes (Study II), case gender influenced ratings in the expected direction. When associations were the opposite of social stereotypes (Study III), only the ratings for narcissistic and histrionic were affected. Across the three studies, these results suggested that subjects rated cases in accordance with known "base rates," but that the correspondence between base rates and stereotypic associations affected the consistency and magnitude of this base rate effect.     

Challenges associated with a polythetic diagnostic system: criteria combinations in the personality disorders

Converging research on the diagnostic criteria for personality disorders (PDs) reveals that most criteria have different psychometric properties. This finding is inconsistent with the PD diagnostic system according to the Diagnostic and Statistical Manual of Mental Disorders (4th ed.; American Psychiatric Association, 1994), which weights each criterion equally. The purpose of the current study was to examine the potential effects of using equal weights for differentially functioning criteria. Data from over 2,100 outpatients were used to analyze and score response patterns to the diagnostic criteria for 9 PDs within an item response theory framework. Results indicated that combinations that included the same number of endorsed criteria yielded differing estimates of PD traits, depending on which criteria were met. Moreover, trait estimates from subthreshold criteria combinations often overlapped with diagnostic (at-threshold or higher) combinations, indicating that there were subthreshold combinations of criteria that indicated as much or more PD than did some combinations at the diagnostic threshold. These results suggest that counting the number of criteria an individual meets provides only a coarse estimation of his or her PD trait level. Implications for the assessment of polythetically defined mental disorders and for the PD proposal for the 5th edition of the Diagnostic and Statistical Manual of Mental Disorders are discussed.     

Assessing personality in the DSM-5: the utility of bipolar constructs

All previous editions of the American Psychiatric Association's Diagnostic and Statistical Manual of Mental Disorders (DSM) have described and assessed personality solely in terms of pathological categories. Nonetheless, there is compelling evidence that normal-range personality traits also provide clinically useful information, emphasizing the importance of thoroughly assessing both adaptive and maladaptive aspects of personality within a clinical context. The proposed inclusion of a dimensional trait model in the upcoming DSM-5 represents an important shift in the understanding of personality pathology and provides an ideal opportunity to integrate the assessment of normal personality into clinical practice. Building on research conceptualizing personality disorders as maladaptive, extreme variants of general personality traits, it is proposed that both normal and abnormal personality can be assessed within the same dimensional model using bipolar constructs. The inclusion of bipolar traits, such as a continuum ranging from introversion to extraversion, would hold numerous advantages for a dimensional model. These benefits include a strong foundation of existing validity research, comprehensive coverage of personality pathology, and the ability to provide useful information about all individuals. Despite potential complexities, the adoption of bipolar constructs within DSM-5's dimensional model presents the greatest opportunity to maximize efficiency, validity, and clinical utility.     

A rare diagnosis: The counterphobic personality

The patient is a 56-year-old man of English heritage. He left England in his 20s, and went to South America where he worked in the cocoa industry successfully. His high risk-taking behavior in business and in his early life—in playing with live, undetonated bombs, catching poisonous snakes with his bare hands, and swimming in shark-infested waters—were dynamically linked to his earlier years in England as a young boy during World War II. During these years the patient had experienced daily air raids and bombings, which were a commonplace occurrence during his childhood. The therapeutic approach and the short-term nature of the treatment are discussed.     

The psychotherapeutic utility of the five-factor model of personality: a clinician's experience.

This article summarizes experience using the five-factor model of personality, operationalized by the NEO Personality Inventory (NEO-PI), to facilitate psychotherapy treatment with 119 private-practice, outpatient, psychotherapy patients and their family members over a period of 2 years. Trait theories such as the five-factor model implicitly challenge the premises of much clinical theory, yet they can be useful to clinicians, as they provide a detailed, accurate portrait of the client's needs, feelings, proximate motives, and interpersonal style. I suggest that: Neuroticism (N) influences the intensity and duration of the patient's distress, Extraversion (E) influences the patient's enthusiasm for treatment, Openness (O) influences the patient's reactions to the therapist's interventions, Agreeableness (A) influences the patient's reaction to the person of the therapist, and Conscientiousness (C) influences the patient's willingness to do the work of psychotherapy. Fundamental questions raised by the five-factor model about the nature of psychopathology and psychotherapy are discussed.