Quantification of brain lesions using interactive automated software

We developed an interactive program, Analysis of Brain Lesions (ABLe) so that researchers studying the effects of brain lesions on cognition could have a user-friendly tool that could quantitatively characterize such lesions. The program was prepared in Tcl/Tk and will run on any UNIX or PC LINUX platform with the MEDx medical imaging software package. The ABLe is almost completely automated and determines the brain lesion size as well as which cytoarchitectonic brain regions (Brodmann areas) are contained within the boundaries of the lesion. Lesion data from multiple subjects can be grouped together and the degree of lesion overlap displayed. All images are analyzed and displayed within standard Talairach coordinate space, and the precision of the match between the ABLe Brodmann area graphics and the subject/patient brain is easily confirmed. The program is the first easy-to-use software that contains these specific features and is available for interested researchers with a background in lesion analysis.     

Relations Between Continuous Performance Test Performance Measures and ADHD Behaviors

The Conners' Continuous Performance Test (CPT) is a neuropsychological task that has repeatedly been shown to differentiate ADHD from normal groups. Several variables may be derived from the Conners' CPT including errors of omission and commission, mean hit reaction time(RT), mean hit RT standard error, d', and . What each CPT parameter actually assesses has largely been based upon clinical assumptions and the face validity of each measure (e.g., omission errors measure inattention, commission errors measure impulsivity). This study attempts to examine relations between various CPT variables and phenotypic behaviors so as to better understand the various CPT variables. An epidemiological sample of 817 children was administered the Conners' CPT. Diagnostic interviews were conducted with parents to determine ADHD symptom profiles for all children. Children diagnosed with ADHD had more variable RTs, made more errors of commission and omission, and demonstrated poorer perceptual sensitivity than nondiagnosed children. Regarding specific symptoms, generalized estimating equations (GEE) and ANCOVAs were conducted to determine specific relationships between the 18 DSM-IV ADHD symptoms and 6 CPT parameters. CPT performance measures demonstrated significant relationships to ADHD symptoms but did not demonstrate symptom domain specificity according to a priori assumptions. Overall performance on the two signal detection measures, d' and , was highly related to all ADHD symptoms across symptom domains. Further, increased variability in RTs over time was related to most ADHD symptoms. Finally, it appears that at least 1 CPT variable, mean hit RT, is minimally related to ADHD symptoms as a whole, but does demonstrate some specificity in its link with symptoms of hyperactivity.     

Contributions to the history of psychology: CXVIII. Michael Argyle, 1925-2002

Recollections of Michael Argyle, one of Europe's leading social psychologists, cover his life, work, and some ideas.     

Exploring issues of personality measurement and structure through the development of a short form of the Eysenck Personality Profiler

In this article, we develop a revised short form of the original Eysenck Personality Profiler (EPP; H. J. Eysenck & Wilson, 1991). In addition, we address topics of broad theoretical importance such as the recurrent empirical finding of correlations between conceptually orthogonal personality dimensions and the possibility that gender differences in these dimensions are partly spurious. In Study 1 (N = 227), we demonstrate that the existing short form of the EPP (EPP-SF; H. J. Eysenck, Wilson, & Jackson, 1996) provides a poor fit to the data and we develop a revised well-fitting version. In Study 2, we retest this version on an independent new sample (N = 3,374) where it is again found to fit the data well. We show that most of the structural and measurement parameters of the revised EPP-SF are invariant across genders. Structured means analysis indicated a significant gender difference in Psychoticism, with men scoring higher than women, but no differences in Extraversion or Neuroticism. Our discussion focuses on issues concerning personality measurement and structure, including an examination of the role of confirmatory factor analysis in personality research.     

Gender Differences in Measured and Self-Estimated Trait Emotional Intelligence

Two hundred and sixty predominantly White participants completed a measure of trait emotional intelligence (EI) and estimated their scores on 15 EI facets on a normal distribution with 100 points as the mean and 15 points as a standard deviation. Females scored higher than males on the social skills factor of measured trait EI. However, when the 15 facets of self-estimated EI were combined into a single reliable scale and the participants's measured trait EI scores were held constant, it was demonstrated that males believed they had higher EI than females. Most of the correlations between measured and self-estimated scores were significant and positive, thereby indicating that people have some insight into their EI. Correlations between measured and self-estimated scores were generally higher for males than females, and a regression analysis indicated that gender was a significant predictor of self-estimated EI.     

Training of interventionists and cultural adaptation procedures: A systematic review of culturally adapted evidence-based parenting programs in Africa

There has been an increase in the implementation of evidence-based parenting programs from high-income countries to several African countries. In this review, we systematically evaluated intervention studies of culturally adapted parenting programs in nine African countries with the objective of examining the quality of training for interventionists and cultural adaptation procedures. A total of 18 studies, obtained from an electronic search of 6 databases, met the inclusion criteria and were evaluated following PRISMA guidelines. The Ecological Validity Model was adopted to organize data on cultural adaptation procedures. Sixteen of the 18 studies reported information regarding the clinical training of interventionists and the cultural adaptations undertaken. Live and interactive workshops were the most common format used to train interventionists in the focal intervention. Overall, cultural adaptations in most studies included translation of intervention protocols into the local language. However, studies varied in the way cultural adaptation procedures were reported with some studies failing to report on cultural adaptation procedures. Concurring with previous literature, attending to issues of culture, power, privilege, access, sustainability, and other relevant concepts to increase the cultural relevance is highly encouraged in parent intervention studies in Africa. This review provides a baseline upon which future training and adaptation procedures can be built.     

Music and driving game performance

This study investigated the effects of the nature of music and a concurrent task on measures of task performance and musical preference. Subjects completed 5 laps of a computer motor racing game whilst listening to either arousing or relatively unarousing music in either the presence or absence of a backward-counting task. Both these manipulations affected performance on the game with arousing music and backward-counting leading to slower lap times than relatively unarousing music and the absence of the backward-counting task. Backward-counting led to lower liking for the music than did the absence of this task. These results support the idea that music and the concurrent task competed for a limited processing resource. The results also indicated that liking for the music was positively related to task performance, and in conjunction these findings seem to suggest a direct link between music and the listening context.     

Personality and work motivation

A total of 92 job applicants completed the Eysenck Personality Profiler (EPP) which measures the three primary (superfactor) traits (as well as 21 second-order factors), and the Work Values Questionnaire, which requires subjects to rate how important various work factors were to them when considering applying for a job. These work factors were then categorised into the traditional Herzberg classification of Hygiene and Motivation factors, each with a satisfactory internal reliability. Correlational and regressional analyses showed that extraverts stressed the importance of motivation factors to them, while neurotics rated hygiene factors as more important to them in choosing a particular job. Psychoticism was marginally related to the hygiene factor, as was test-taking style. In view of the fact that personality factors appeared to account for between 20 and 30% of the variance in work performance, it is surprising that they have been neglected, until recently, in the organisational psychology literature.