Reflections on the process of psychotherapeutic change as applied to medical situations

This article takes the basic ideas on the process of changing implicit knowledge put forward in this special issue, and extends them beyond psychotherapy to include other therapeutic relationships that occur in medicine. One vignette, from an encounter between a medical student and a dying patient, illustrates how a “moment of meeting” changes the student as well as the patient. The second shows how therapeutic interventions for new mothers with their newborn infants involve “moments of meeting” that alter the mother's implicit knowledge of her baby and of herself as a mother. © 1998 Michigan Association for Infant Mental Health     

Computational and statistical methods for analyzing event-related potential data

Some computational and statistical techniques that can be used in the analysis of event-related potential (ERP) data are demonstrated. The techniques are fairly elementary but go one step further than do simple area measurement or peak picking, which are most often used in ERP analysis. Both amplitude and latency measurement techniques are considered. Principal components analysis (PCA) and methods for electromyographic onset determination are presented in detail, and Woody filtering is discussed briefly. The techniques are introduced in a nontechnical, tutorial review style. One and the same existing data set is presented, to which the techniques are applied, and practical guidelines for their use are given. The methods are demonstrated against a background of theoretical notions that are related to the definition of ERP components.     

An integrative perspective on psychotherapeutic treatments for borderline personality disorder

Although there is an abundance of literature on the psychotherapeutic treatment of borderline pathology, little is known about differences and similarities between treatments of borderline personality disorder (BPD). Potential differences and similarities are especially important in the absence of evidence of the superiority of one treatment over the other (e.g., Livesley, 2004). This article offers an overview of the theory and practice of contemporary psychotherapeutic treatments of BPD, and delineates similarities and differences between the specific treatments. Results show that similarities concerning (1) the formal characteristics, and (2) the importance of therapeutic techniques in treatments for BPD, outnumber the differences. This article concludes by viewing the similarities and differences from an integrative perspective, and recommendations are given for future work in treating patients with and research on the effectiveness of treatments and treatment techniques for BPD.     

New methods,measures, and models for analyzing memory impairment using triadic comparisons

We study the effect of memory impairment on triadic comparisons of animal names in a large clinical data set. We define eight groups of subjects in terms of their delayed free recall performance, and present standard analyses of the triadic comparison and free recall data that provide little insight into the effect of memory impairment on semantic structure. We then develop and apply two new methods for analyzing the data, based on cognitive models and using Bayesian statistical inference. The first new method focuses on modeling changes in semantic representation, by inferring multidimensional scaling (MDS) representations for each group based on their triadic comparisons. These representations reveal a successive decrease in semantic cluster structure and increase in uncertainty with increasing impairment. We propose a measure of spatial organization as a means of quantifying the visually evident changes in semantic organization, and demonstrate its usefulness. The second new method focuses on modeling changes in memory access with impairment, inferring the extent to which each individual makes triadic comparisons consistent with a common semantic representation. Although these inferences are based on just 12 comparisons per subject, we show that they vary systematically with memory impairment group. We conclude by discussing the potential for clinical application of our new models, measures, and methods.     

Dual process theory and the context of choice: Comments on Dhar and Gorlin

Dhar and Gorlin show that default-interventionist dual-process theory differentially classifies several effects in the consumer choice literature and makes differential predictions across a variety of manipulations. One of the most startling differential classifications in their model is that it drives a wedge between the attraction and enhancement effects, because they arise from System 1 and System 2, respectively. System-2 bias effects explain why sometimes less complex organisms (nonhumans, human children) can display more normative behavior than human adults. Such a finding does not at all undermine the heuristics and biases research tradition, as is sometimes argued.