Toward resolution of a longstanding controversy in personality disorder diagnosis: Contrasting correlates of schizoid and avoidant traits

Toward a More Nuanced Perspective on Detachment: Differentiating Schizoid and Avoidant Personality Styles through Qualities of the Self-Representation

Avoidant personality disorder was introduced in DSM-III (American Psychiatric Association [APA], 1980), and debate persists regarding the utility of having two separate variants of the "detached personality." The present study addressed this issue through ratings of open-ended self-descriptions provided by community adults with high scores on schizoid versus avoidant personality traits (N = 229). The self-concept of individuals with avoidant personality style reflected a lack of positive self-regard and low self-efficacy/agency. Regarding schizoid personalities, neither positive nor negative self-regard, self-complexity, or self-efficacy/agency was found. Examination of specific variables yielded a relationship between avoidant personality styles, depression, and anxiety, consistent with literature noting simultaneous desire and fear of interpersonal relationships in avoidant patients (APA, 1980; Sheldon & West, 1990). Similarly, examination of individual variables yielded a negative association between schizoid personality styles and tolerance for contradictory aspects of the self, consistent with theoretical writings in this area (Kernberg, 1976; McWilliams, 2006). Results support the argument that these two personality styles represent distinct constructs. Findings support the utility of self-concept assessment to assist treatment planning and differential diagnosis. Treatment implications include using open-ended descriptions of patients' self-concepts to explore changes that may not be accessible via more structured forms of patient self-report.

Schizotypal traits and their relation to rejection sensitivity in the general population: Their mediation by quality of life, agreeableness and neuroticism

Schizotypal traits are a cluster of personality styles suggesting a potential liability for schizophrenia-spectrum disorders. Interpersonal schizotypal traits include cognitive disorganisation which consists of social anxiety, and introvertive anhedonia which consists of a lack of pleasure in social activities. Rejection sensitivity is evident all along this continuum. This study aimed to determine whether psychosocial quality of life (QOL), neuroticism and agreeableness mediates the relation between schizotypy and rejection sensitivity. Three hundred and eighteen participants from a predominantly University student population completed an online survey measuring schizotypy, rejection sensitivity, quality of life, and the five-factor personality traits. A regression analysis determined the prediction of rejection sensitivity by schizotypy, quality of life, and the five personality traits. Analyses examined the mediation of the relation between interpersonal schizotypy and rejection sensitivity by psychological QOL, social QOL, neuroticism, and agreeableness. Cognitive disorganisation and introvertive anhedonia predicted greater rejection sensitivity, which in turn were mediated by psychological QOL, social QOL, neuroticism, and agreeableness. The findings show that interpersonal schizotypy relates to greater rejection sensitivity. Psychosocial factors that lower one's ability to have positive feelings, trusting relationships, and prosocial behaviour, and personality traits that increase worrying mediate this association.

Avoidant personality disorder as a social anxiety phenotype: risk factors, associations and treatment

PURPOSE OF REVIEW

This article identifies research trends and synthesizes information from recent studies of avoidant personality disorder (AVPD).

RECENT FINDINGS

AVPD and social anxiety disorder (SAD) share genetic vulnerability, but may have distinct environmental risk factors that shape qualitative differences. Negative self-concept, shame proneness, and interpersonal hypersensitivity are characteristic of AVPD and may be predisposed to by heritable traits of high negative affectivity and low positive affectivity, and experiences of neglectful or emotionless parents. The interpersonal difficulties of AVPD may be associated with both anxious and avoidant attachment. Most individuals with AVPD do not also meet criteria for SAD.

SUMMARY

Integrative treatments incorporating cognitive behavioral strategies effective in SAD but also targeting shame aversion and avoidance may be most helpful for AVPD. Therapy adapted to both anxious attachment, associated with heightened interpersonal sensitivity and distress, and avoidant attachment, associated with experiential avoidance, may be optimal, though this is yet to be tested. Effective treatment of AVPD may enhance the outcome of comorbid conditions. More research is needed which compares three social anxiety groups (SAD alone, AVPD alone, and SAD plus AVPD) to further explore these disorders which are highly related, but which may have differences that are clinically relevant for individuals.