Interpersonal pathoplasticity in individuals with generalized anxiety disorder

Recent theories of generalized anxiety disorder (GAD) have emphasized interpersonal and personality functioning as important aspects of the disorder. We examined heterogeneity in interpersonal problems in 2 studies of individuals with GAD (n = 47 and n = 83). Interpersonal subtypes were assessed with the Inventory of Interpersonal Problems-Circumplex (Alden, Wiggins, & Pincus, 1990). Across both studies, individuals with GAD exhibited heterogeneous interpersonal problems, and cluster analyses of these patients' interpersonal characteristics yielded 4 replicable clusters, identified as intrusive, exploitable, cold, and nonassertive subtypes. Consistent with our pathoplasticity hypotheses, clusters did not differ with GAD severity, anxiety severity, or depression severity. Clusters in Study 2 differed on rates of personality disorders, including avoidant personality disorder, further providing support for the validity of interpersonal subtypes. The presence of interpersonal subtypes in GAD may have important implications for treatment planning and efficacy.

Worry, generalized anxiety disorder, and emotion: evidence from the EEG gamma band

The present study examined EEG gamma (35-70 Hz) spectral power distributions during worry inductions in participants suffering from generalized anxiety disorder (GAD) and in control participants without a history of psychiatric illness. As hypothesized, the EEG gamma band was useful for differentiating worry from baseline and relaxation. During worry induction, GAD patients showed higher levels of gamma activity than control participants in posterior electrode sites that have been previously associated with negative emotion. Gamma fluctuations in these electrode sites were correlated with subjective emotional experience ratings lending additional support to interpretations of negative affect. Following 14 weeks of psychotherapy, the GAD group reported less negative affect with worry inductions and the corresponding gamma sites that previously differentiated the clinical from control groups changed for the GAD patients in the direction of control participants. These findings suggest converging evidence that patients suffering from GAD experience more negative emotion during worry and that the EEG gamma band is useful for monitoring fluctuations in pathological worry expected to follow successful treatment.

Correction to schut et Al. (2005)

Reports an error in "Therapist Interpretation, Patient-Therapist Interpersonal Process, and Outcome in Psychodynamic Psychotherapy for Avoidant Personality Disorder" by Alexander J. Schut, Louis G. Castonguay, Kelly M. Flanagan, Alissa S. Yamasaki, Jacques P. Barber, Jamie D. Bedics and Tracey L. Smith (Psychotherapy: Theory, Research, Practice, Training, 2005 Win, Vol 42(4), 494-511). The correct legend for Figure 1 on page 500 should read as follows: Figure 1. The SASB circumplex model, cluster version, interpersonal surfaces. Adapted from Benjamin (1993), Interpersonal diagnosis and treatment of personality disorders. New York: Guilford Press, copyright Guilford Press, and from: Benjamin (1987), Use of the SASB dimensional model to develop treatment plans for personality disorders, I: Narcissism. Journal of Personality Disorders, 1, 43-70, copyright Guilford Press. (The following abstract of the original article appeared in record 2006-03309-008.) The authors examined the link between interpretive techniques, the therapeutic relationship, and outcome in psychodynamic psychotherapy. Two independent teams of judges each coded one early session from patients diagnosed with avoidant personality disorder. Results revealed (a) an inverse association between concentration of interpretation and favorable patient outcome; (b) that small amounts of disaffiliative patient-therapist transactions before, during, and after interpretations were reliably or meaningfully associated with negative patient change; and (c) concentration of interpretation was positively associated with disaffiliative therapy process before and during interpretation and negatively associated with affiliative patient responses to interpretation. The results suggest that therapists who persisted with interpretations had more hostile interactions with patients and had patients who reacted with less warmth than therapists who used interpretations more judiciously. (PsycINFO Database Record (c) 2010 APA, all rights reserved).