Kinematic assessment of treadmill running using different body-weight support harnesses

10 male collegiate runners (M age = 21.4, SD = 1.5 yr.) ran on a treadmill with no body-weight support (BWS), 20% BWS, and 40% BWS conditions. In addition, they wore three different commercially available harnesses at the 20% and 40% BWS conditions. The aim was to run on the treadmill at a fast speed while maintaining an adequate step length. The purpose was to investigate how each harness changed running gait, and the differences in running gait between the harnesses with various body-weight support. Analysis of variance indicated significant restriction of upper body torso rotation between the harnesses at the 40% BWS conditions. Body-weight support resulted in a longer stride, decreased cadence, less vertical displacement of the center of mass, and diminished hip and ankle joint excursions. These changes indicated that increased body-weight support results in longer steps with the foot contacting the belt for a shorter period of time with less leg angular changes throughout the running cycling.     

An analysis of U.S. parachuting fatalities: 2000-2004

Between 2000 and 2004, 125 recreational parachuting fatalities were reported in the USA. Each was categorized using a previously reported taxonomy. While patterns of skydiving fatality were largely unchanged since the last such analysis of fatalities from 1993-1999, some variations were noted. As in previous analyses, most of the recent skydiving fatalities were the direct result of human error. Some examples of commonplace human error fatalities were turning low to the ground resulting in a hard landing, accidentally colliding with other skydivers resulting in entangled parachutes, and failure to deploy the reserve parachute correctly in the event of malfunctioning main parachute.     

Verbal and cognitive distractors in driving performance while using hands-free phones

This study investigated the effect of different types of distractions related to use of a hands-free phone on driving performance. The study used three types of verbal distractors: casual conversation, simple arithmetic number guessing, and number adding, in the phone conversation. 12 adults were instructed to follow a lead vehicle on a closed-course highway in a fixed-based driving simulator. The results showed that use of a hands-free cellular phone involving verbal and cognitive distractions impaired driving performance and skill. Types of distraction produced significantly different effects on several dependent variables: the driving speed, headway (distance between the lead car and the manipulated car), brake reaction time, and number of collisions with the lead car. In general, the higher the cognitive load involved in the dialogue, the worse the driving performance.     

A General Family of Limited Information Goodness-of-Fit Statistics for Multinomial Data

Maydeu-Olivares and Joe (J. Am. Stat. Assoc. 100:1009–1020, 2005; Psychometrika 71:713–732, 2006) introduced classes of chi-square tests for (sparse) multidimensional multinomial data based on low-order marginal proportions. Our extension provides general conditions under which quadratic forms in linear functions of cell residuals are asymptotically chi-square. The new statistics need not be based on margins, and can be used for one-dimensional multinomials. We also provide theory that explains why limited information statistics have good power, regardless of sparseness. We show how quadratic-form statistics can be constructed that are more powerful than X ² and yet, have approximate chi-square null distribution in finite samples with large models. Examples with models for truncated count data and binary item response data are used to illustrate the theory.     

Religious Involvement among Caribbean Blacks in the United States

This study examined demographic and denominational differences in religious involvement (i.e., organizational, non-organizational, subjective) among Caribbean Blacks (Black Caribbeans) residing in the U.S. using data from the National Survey of American Life. Caribbean Blacks who were born in the U.S. had lower levels of religious involvement than those who immigrated and respondents originating from Haiti (as compared to Jamaica) had higher levels of religious involvement, while persons from Trinidad-Tobago reported lower service attendance than did Jamaicans. Older persons, women and married persons generally demonstrated greater religious involvement than their counterparts, while highly educated respondents expressed lower levels of self-rated religiosity. Denominational differences indicated that Baptists reported high levels of religious involvement; however, in several cases, Pentecostals and Seventh Day Adventists reported greater involvement.     

Learning Under Conditions of Action Information Feedback

Methodological and empirical issues in research on action information feedback (AIF) are discussed, with particular reference to the procedures and results of Annett (1970). Positioning responses practiced under conditions of AIF training are learned, though generally less well than under terminal IF conditions. Effects obtained as a result of AIF training may be subject to variations in movement extent required, gain and other transformations, frequency, temporal locus, and mode of augmentation, many aspects of which remain to be systematically studied.     

Lending a Hand One Child at a Time: The Children's Rights Council's Child Access and Transfer Centers

This paper summarizes characteristics of Children's Rights Council child access and transfer centers and presents findings from a pilot survey of parents in a subset of centers. The legislative history of Federal government support for child access projects is presented. The importance of parent-child access following divorce is noted, and existing research findings on outcomes associated with child access programs are reviewed. The differences between the CRC model of child access centers, and those operated by other providers, are discussed in detail. Add-on services, such as parenting education, counseling, and marriage and family therapy, receive due attention.     

Transference Focused Psychotherapy for Patients with Comorbid Narcissistic and Borderline Personality Disorder

Clinical experience involving the treatment of patients with comorbid borderline and narcissistic personality disorders suggests that this patient population is among the more difficult to treat within the personality disorder spectrum. In this article, we present refinements of Transference Focused Psychotherapy (TFP) based on our clinical experience with and research data on patients with comorbid narcissistic personality disorder/borderline personality disorder (NPD/BPD). We briefly review object relations formulations of severe narcissistic pathology, as well as recent research in attachment and the allied concept of mentalization, which have provided a new lens through which to view narcissistic disorders. The research findings from two randomized clinical trials demonstrating the efficacy and effectiveness of TFP are presented. The data from the two Randomized Clinical Trials (RCT) allowed for the study of the characteristics of the subgroup of borderline personality disorder patients who have comorbid NPD/BPD. Findings on comorbidity, attachment status, capacity for mentalization, and level of personality organization of borderline patients with comorbid NPD/BPD, compared with borderline patients without comorbid narcissistic pathology (BPD), are presented. Clinical implications of the observed group differences are discussed, with a focus on refinements in the technique of TFP. Clinical case material is presented to illustrate the specific challenges posed by narcissistic patients to carrying out TFP in each phase of treatment.     

Commentary: “A Fundamental Polarity in Psychoanalysis: Implications for Personality Development,Psychopathology, and the Therapeutic Process” by Sidney J. Blatt

A commentary on Dr. Sidney J. Blatt's article, “A Fundamental Polarity in Psychoanalysis: Implications for Personality Development, Psycho-pathology, and the Therapeutic Process” is presented by articulating Dr. Blatt's significant contribution to psychoanalysis, developmental and attachment theory, and therapeutic process research. According to Blatt's theory, normal maturation involves a complex reciprocal transaction between two developmental lines throughout the life cycle: (a) the establishment of stable, enduring, mutually satisfying interpersonal relationships and (b) the achievement of a differentiated, stable, and cohesive identity. He has applied this theory to understand both normal and pathological psychological phenomena, the latter resulting from disruptions in these developmental lines, resulting in an overemphasis on relational (anaclitic) or self-definitional (introjective) issues. Further, Dr. Blatt has evaluated his theoretical model through empirical study and demonstrated that relationally oriented and self-definitionally oriented persons have differential responses to psychotherapy. Finally, areas of question and potential for future research are outlined. Specifically, it is argued that although anaclitic and introjective configurations are easy to discuss as distinct types, relevant evidence from attachment theory raises the issue of whether these types may be better conceptualized as dimensions, with different configurations located within two-dimensional space. Further, findings of a group evidencing mixed anaclitic and introjective features raise additional questions about how these configurations relate to one another, and evidence from the attachment literature is used to shed light on this issue.     

Attachment Theory,Psychoanalysis, Personality Development,and Psychopathology

Blatt and Levy place attachment theory and research in a broad theoretical matrix by considering the relationship of attachment patterns to personality development and to different types of psychopathology in adults. Thus Blatt and Levy construct conceptual bridges between the two configurations of personality development and psychopathology that Blatt and colleagues have developed over the past quarter century (e.g., Behrends and Blatt, 1985; Blatt, 1974, 1995; Blatt and Behrends, 1987; Blatt and Blass, 1990, 1996; Blatt and Shichman, 1983) and attachment theory and research. Blatt and Levy identify a polarity that is central to attachment theory and research, the polarity of attachment and separation, and they note that this polarity has also been central in much of classic psychoanalytic theory (e.g., Freud, 1930; Loewald, 1962). This polarity is expressed in attachment theory and research in the differences between avoidant and anxious-preoccupied insecure attachment patterns as well in the distinction between two types of disorganized attachment, helpless-withdrawn and negative intrusive, identified by Lyons-Ruth (1999, 2001).

This polarity of attachment and separation, or relatedness and self-definition is also fundamental to personality development that occurs in the hierarchical dialectic transaction of two basic developmental lines—interpersonal relatedness and self-definition (Blatt and Blass, 1990, 1996). This polarity is also inherent in the conception of two fundamental configurations of psychopathology—anaclitic psychopathology, the dependent (or infantile) and hysterical personality disorders—that are preoccupied with issues of interpersonal relatedness, and introjective psychopathology, the paranoid, obsessive-compulsive and depressive personality disorders, in which issues of self-definition and self-worth are dominant (Blatt, 1974, 1995; Blatt and Shichman, 1983). Thus, the identification of this fundamental polarity provides the basis for establishing links between attachment patterns, personality development, and adult psychopathology. Blatt and Levy also attempt to integrate psychoanalytic concepts of the representational world (e.g., Sandler and Rosenblatt, 1965)—the development of concepts of self and significant others—with the internal working models (IWMs) of attachment relationships. This integration enabled Blatt and Levy to bring a fuller developmental perspective to the IWMs of attachment theory and to note that, based on differences in the content and structural organization of the IWMs or mental representation of self and significant others, several developmental levels can be identified in both avoidant and anxious preoccupied attachment. These developmental levels within each attachment style also identifies less and more adaptive forms of both types of insecure attachment. Thus, the integration of the psychoanalytic concepts of mental representation with concepts of the IWM of attachment theory and research enables Blatt and Levy to create a fuller developmental perspective in the study of insecure attachment patterns.