Empirical clusters of DSM-III personality disorders in violent offenders

Violent male offenders in a maximum security hospital and special units in prisons (N = 164) were interviewed with the Structured Clinical Interview for DSM-III Axis II disorders (SCID-II). Cluster analysis of the personality disorder criteria sets identified six diagnostic patterns: (1) antisocial-narcissistic; (2) paranoid-antisocial; (3) borderline-antisocial-passive-aggressive; (4) borderline; (5) compulsive-borderline; and (6) schizoid. Offenders in the first three groups had more extensive criminal careers, and most were identified as psychopaths by the Psychopathy Checklist-Revised (PCL-R). These Groups also had more frequent lifetime histories of substance abuse. A history of affective and anxiety disorders was more common in Groups 3 and 5, and almost two thirds of Group 2 had a history of psychotic disorder. The results emphasize that dangerous offenders are heterogeneous in personality pathology. They also suggest that personality disorder among violent offenders is more commonly represented by recurring patterns of covarying traits than by single categorical entities proposed in the DSM classification.     

Neurocognitive function in monozygotic twins discordant for combat exposure: relationship to posttraumatic stress disorder

Neuropsychological deficits have been reported among trauma survivors with posttraumatic stress disorder (PTSD). It is often assumed that these cognitive difficulties are toxic consequences of trauma exposure. Alternatively, they may reflect preexisting characteristics that contribute to the likelihood of developing PTSD. To address this possibility, the authors evaluated cognitive performance in monozygotic twin pairs who were discordant for combat exposure. Pairs were grouped according to whether the combat-exposed brother developed PTSD. The combat-unexposed cotwins of combat veterans with PTSD largely displayed the same performance as their brothers, which was significantly lower than that of non-PTSD combat veterans and their brothers. The results support the notion that specific domains of cognitive function may serve as premorbid risk or protective factors in PTSD.     

The influence of emotional valence on age differences in early processing and memory

This study examined older and younger adults' attentional biases and subsequent incidental recognition memory for distracting positive, negative, and neutral words. Younger adults were more distracted by negative stimuli than by positive or neutral stimuli, and they correctly recognized more negative than positive words. Older adults, however, attended equally to all stimuli yet showed reliable recognition only for positive words. Thus, although an attentional bias toward negative words carried over into recognition performance for younger adults, older adults' bias appeared to be limited to remembering positive information.     

The impact of AIDS/sex education by schools or family doctors on Hong Kong Chinese adolescents

Despite the rapid increases of HIV and sexually transmitted infections (STIs) in East Asia, the sex-related knowledge among Chinese adolescents is limited and the standard of sex education is both variable and inconsistent in Hong Kong. The aim of this study is to review the overall effectiveness of the school-based or doctor-based sexual health education currently provided for Hong Kong adolescents. In 1999 - 2000, a large survey on youth risk behaviours was carried out among 15 - 18-year-old students from 21 secondary schools. Of the 8,039 questionnaires, 377 students (4.7%) admitted sexual experience. Multiple logistic regression showed that students who had received school AIDS education were found to be less likely to have sexual intercourse in the past 3 months (odds ratio, OR 0.5; 95% confidence interval, CI 0.3 - 0.9) or use drugs or alcohol before the previous intercourse (OR 0.5; 95% CI 0.3 - 0.9). They were twice as likely to discuss emotional (95% CI 1.4 - 4.0) or puberty issues (95% CI 1.1 - 3.0). Although not statistically significant, sex education by family doctors showed a similar pattern. This result provides the strongest available evidence that school-based sex education programmes can modify sexual behaviour, which, in turn, reduces risk among Chinese students.     

“LANDSCAPE PLOTTED AND PIECED”: EXPLORING THE CONTOURS OF ENGAGEMENT BETWEEN (NEURO)SCIENCE AND THEOLOGY

This article—the first of a linked set of three outlining the development and practice of a different approach to science/religion dialogue—begins with an overview of some persistent tensions in the field. Then, using a threefold heuristic of encounter, engagement, and expression, it explores the routes taken by James Ashbrook and Andrew Newberg to develop a dialogue between theology and neuroscience, discussing some of the problems associated with these and their implications for attempts to further develop neurotheology. Finally, it proposes a different way of thinking about this enterprise and points toward a new methodology for supporting this endeavor.     

Fear decrement to anxiety hierarchy items—Effects of stimulus intensity

The effects of hierarchy item intensity and duration of presentation on intra-item fear decrement were assessed with regard to systematic desensitization. Forty-eight color slides of snakes were scaled and ranked for anxiety value with the psychophysical technique of magnitude estimation by 30 female snake phobics using two response methods: verbal report and a non-verbal report instrument, the hand dynamometer. Seven test slides, spanning the scale range, were shown for 257 sec to 42 additional subjects who rated their fear level on 10 separate occasions using the hand dynamometer and verbal report. For all slides significant fear decrement occurred as a function of duration and the fear decrement across time was greater for slides of higher intensity. Negative exponential functions with similar slopes were found to fit the data for each of the slides, indicating that for each slide the same percentage of the total amount of fear decrement was lost per unit of time. The implications of these results and techniques are discussed for desensitization theory, research and therapeutic procedure.     

Personality Preferences and Their Relationship to Ego Development in Australian Leadership Program Participants

The growth of adult ego development to post-conventional levels is associated with many adaptive advantages for the individual and society. However, the vast majority of adults across a wide range of samples demonstrate ego stages well below the maximum potential. In an effort to advance understanding of why and how development to higher ego levels might occur for some individuals and not others, we explored whether particular personality preferences and combinations thereof (as measured by the Myers-Briggs Type Indicator or MBTI) are associated with higher ego levels and whether particular personality preferences might act as inhibiting or facilitating factors in ego development. Participants were 374 adults (aged 18–61; 50 % female) undertaking 11 community leadership development and 2 professional management development programs. After adjusting for effects of age and education, a preference for Intuition on the MBTI was associated with significantly higher ego development on program entry and with greater ego development during the programs. These results are consistent with previous research and provide support for Manners’ and Durkin’s (Developmental Review, 20:475–513, 2000) proposal that dispositional personality characteristics may enhance or constrain ego development.     

The effects of sex steroids on spatial performance: a review and an experimental clinical investigation

Males typically surpass females in spatial performance, an outcome that may be linked to testosterone and estrogen. The authors (a) review physiological mechanisms, developmental periods, and past empirical work relevant to sex steroids' effects on human spatial performance and (b) report an experimental study of the role of actively circulating sex steroids in adolescents being treated for delayed puberty (N = 55; mean age = 13.70 years). Sex steroids (simulating early, middle, and late puberty) and placebos were given alternately over 21 months and spatial tests were given every 3 months. Spatial performance showed traditional sex differences but did not vary with levels of actively circulating sex steroids.     

Local stability in coordinated rhythmic movements: fluctuations and relaxation times

An experiment was conducted to examine the stability of the anti-phase and in-phase modes of coordination by means of both fluctuations and relaxation times. Participants (n=6) performed a rhythmic bimanual forearm coordination task that required them to oscillate their forearms in-phase and anti-phase while grasping two manipulanda at fixed frequencies ranging from 0.6 to 1.8 Hz. Relaxation times were measured as the time taken to return to a stable mode following the application of a transient mechanical torque. It was found that relaxation times were not different statistically across participants, frequencies, and coordinative modes. However, fluctuations, as indicated by the mean S.D. of relative phase across individual frequency plateaus, were significantly greater in the anti-phase than in the in-phase mode of coordination, p<0.05. Whilst providing new empirical support for the notion that relaxation times should be of the same order of magnitude at frequencies outside transition regions, the findings suggest that the level of stochastic noise in the anti-phase mode is greater than that of the in-phase mode. Implications are made for the future assessment of local pattern stability.     

Haste does not always make waste: Expertise,direction of attention,and speed versus accuracy in performing sensorimotor skills

In two experiments, we examined the attentional mechanisms governing sensorimotor skill execution across levels of expertise. In Experiment 1, novice and expert golfers took a series of putts under dual-task conditions designed to distract attention from putting and under skill-focused conditions that prompted attention to step-by-stePperformance. Novices performed better under skill-focused than under dual-task conditions. Experts showed the opposite pattern. In Experiment 2, novice and expert golfers putted under instructions that emphasized either putting accuracy or speed—the latter intended to reduce the time available to monitor and explicitly adjust execution parameters. Novices putted better under accuracy instructions. Experts were more accurate under speed instructions. In agreement with theories of skill acquisition and automaticity, novice performance is enhanced by conditions that allow for on-line attentional monitoring (e.g., skill-focused or accuracy instructions) in comparison with conditions that prevent explicit attentional control of skill execution (e.g., dual-task or speed constraints). In contrast, the proceduralized skill of experts benefits from environments that limit, rather than encourage, attention to execution.