Convergence of clinically derived diagnoses and parent checklists among inpatient children

The extent to which parent rating scales differentiated children according to DSM III diagnoses was examined. A total of 113 psychiatric inpatient boys (ages 6–11) were rated by their mothers or maternal figures on the Child Behavior Checklist (CBCL) and the Behavior Problem Checklist (BPC). Children with DSM III diagnoses of conduct disorder or depression were compared to children without these diagnoses. Externalizing and internalizing scales of the parent checklists and additional measures of child aggression and depression differentiated children according to major diagnoses. The use of parent checklists to classify children indicated a high level of sensitivity for both CBCL and BPC scales for diagnosing conduct disorder and depression. However, specificity of the subscales, particularly for the CBCL, was relatively low, indicating a high rate of false positives. The need for further work that extends the range of diagnosis, that examines subtypes of disorders, and that increases the specificity of the measures for diagnostic purposes is discussed.Completion of this project was supported by a Research Scientist Development Award (MH00353) and a grant (MH35408) from the National Institute of Mental Health, and by a Clinical Research Center Grant for the Study of Affective Disorders (5 P50 MH30915) from the National Institute of Mental Health. The authors are grateful to Elaine Meyer, Karen Esveldt-Dawson, Antoinette Rodgers, and the clinical research team and staff of the Child Psychiatric Treatment Service.     

Studies of mood and humor appreciation

A total of 189 students in two studies rated jokes on funniness and several other scales after rating their own mood on the Nowlis-Green Mood Adjective Check List. Subjects in Experiment 1 gave a second and third set of mood ratings after their joke-funniness ratings. Three mood factors—surgency, elation, and vigor—reliably predicted joke appreciation in both studies. More tentative evidence linked humor appreciation to concentration, social affection, excitement, freedom, and (lack of) fatigue, but humor appeared independent of aggression, anxiety, tension, and inhibition. Relationships among joke-scale ratings were highly similar for subjects reporting relatively positive moods and those reporting more negative moods. Results were discussed with reference to several humor theories.The authors would like to thank Carol Pierce, Marguerite Ponder, and Ron Fox for their help with this research.     

Construct validity and personality correlates of the Strelau temperament inventory

Strelau's reinterpretation of Pavlov's concept of nervous system properties has gained increasing attention in Western personality research, both with regard to the psychometric properties of the Strelau Temperament Inventory (STI) and with regard to the interrelations between STI and Western personality dimensions. The present study investigated the construct validity of the Strength of Excitation scale by examining its relationship to experimental indices of strength of the nervous system. Secondly, data on the convergence between STI, EPQ, SSS IV, and trait anxiety measures are presented, using German translations of all the questionnaires. The results confirmed the correlation between strength of excitation and a reaction time based measure of strength of the nervous system. A factor analysis on the questionnaire scales identified two factors. Factor I (activity/stimulation seeking) consisted of extroversion, mobility, strength of excitation and the sensation seeking scales whereas Factor II (instability vs control) was composed of anxiety/neuroticism/ psychoticism and strength of excitation/strength of inhibition/social desirability. These findings agree with Eysenck's and Strelau's theoretical predictions regarding the interrelations of Pavlovian properties and Western personality dimensions.     

Grey Parrot (Psittacus erithacus) numerical abilities: addition and further experiments on a zero-like concept

A Grey parrot (Psittacus erithacus), able to quantify 6 or fewer item sets (including heterogeneous subsets) by using English labels (I. M. Pepperberg, 1994), was tested on addition of quantities involving 0-6. He was, without explicit training, asked, "How many total X?" for 2 sequentially presented collections (e.g., of variously sized jelly beans or nuts) and required to answer with a vocal English number label. His accuracy suggested (a) that his addition abilities are comparable to those of nonhuman primates and young children, (b) some limits as to his correlation of "none" and the concept of zero, and (c) a possible counting-like strategy for the quantity 5.     

Three-month-olds' visual preference for faces and its underlying visual processing mechanisms

This study was aimed at investigating the face preference phenomenon and its underlying mechanisms at 3 months of age. Using an eye-tracker apparatus, Experiment 1 demonstrated that 3-month-olds prefer natural face images to unnatural ones, replicating and extending previous evidence obtained with schematic facelike stimuli. Experiments 2 and 3 showed that the general mechanisms that induce face preference in newborns could not explain the same phenomenon at 3 months of age, when infants are attracted by perceptual cues more specific to faces. This suggests that signs of a process of cognitive specialization are already present in 3-month-olds' visual behavior toward faces.     

Preferred Prayer Styles and Anxiety Control

To date, the literature on prayer and anxiety has yielded mixed results. Recent development of a new instrument has improved our ability to measure individuals’ prayer activities, which may be a promising means of clarifying this literature. This correlational study examined preferred prayer styles and associated scores on measures of anxiety control and trait anxiety in a sample of 85 college students. Results suggested that individuals whose prayer styles were characterized by active rather than avoidant coping were likely to evidence greater perceived control of anxiety and lower levels of trait anxiety. Dr. Harris is a rehabilitation psychologist at the VA Medical Center in Minneapolis, MN. Dr. Schoneman is a clinical psychologist at Casa Pacifica and in private practice. Dr. Carrera is a counseling psychologist at the Psychological Services Center at the University of Cincinatti. Correspondence to J. Irene Harris, Staff Psychologist, VA Medical Center, One Veterans Drive, Minneapolis, MN 55417; e-mail: jeanette.harris2@med.va.gov.     

The structure of three-dimensional object representations in human vision: evidence from whole-part matching

This article examines how the human visual system represents the shapes of 3-dimensional (3D) objects. One long-standing hypothesis is that object shapes are represented in terms of volumetric component parts and their spatial configuration. This hypothesis is examined in 3 experiments using a whole-part matching paradigm in which participants match object parts to whole novel 3D object shapes. Experiments 1 and 2, consistent with volumetric image segmentation, show that whole-part matching is faster for volumetric component parts than for either open or closed nonvolumetric regions of edge contour. However, the results of Experiment 3 show that an equivalent advantage is found for bounded regions of edge contour that correspond to object surfaces. The results are interpreted in terms of a surface-based model of 3D shape representation, which proposes edge-bounded 2-dimensional polygons as basic primitives of surface shape.     

The interaction of objective and subjective organizations in a localization search task

We investigated how both objective and subjective organizations affect perceptual organization and how this perceptual organization, in turn, influences observers’ performance in a localization search task. Two groups of observers viewing exactly the same stimuli (objective organization) performed in significantly different ways, depending on how they were induced to parse the display (subjective organization). In Experiments 1 and 2, the observers were asked to describe the location of a tilted target among a varying number of vertical or horizontal distractors. Subjective organization was induced by instructing observers to parse the display into either three horizontal regions (rows) or three vertical regions (columns). The position of the target was critical: location performance, as assessed by reaction time and errors, was consistently impaired at the locations adjacent to the boundaries defining the regions, producing what we refer to as thesubjective boundary effect. Furthermore, the extent of this effect depended on whether the stimulus-driven and conceptually driven information concurred or conflicted. This made location information more or less accessible. In Experiment 1, the strength of objective grouping was a function of the proximity of the items (near or far conditions) and their orientation in a 6×6 matrix. In Experiment 2, the strength of objective grouping was a function of similarity of color (items were color coded by rows or by columns) and the orientation of the items in a 9×9 matrix. The subjective boundary effect was more pronounced when the display promoted grouping in the direction orthogonal to that of the task (e.g., when observers parsed by rows but vertical distractors were closer together [Experiment 1] or color coded [Experiment 2] to induce global columns). In contrast, this effect decreased when the direction of both objective and subjective organizations was parallel (e.g., when observers parsed by rows and horizontal distractors were closer together [Experiment 1] or were color coded [Experiment 2] to induce global rows). A localization search task proved to be an ideal forum in which objective and subjective organizations interacted. We discuss how these results indicated that observers’ performance in a localization task was determined by the interaction of objective and subjective organizations, and that the resulting perceptual organization constrained coarse location information.