Personality traits in patients with narcolepsy

Narcolepsy is a lifelong disorder with the main symptoms of sleep attacks and cataplexy. In this study 49 narcoleptic patients were investigated with a battery of personality inventories, covering the following personality dimensions: anxiety-neuroticism, extraversion and socialization. The results were compared with three groups: normal subject, psychiatric inpatients with anxiety and outpatients with psychosomatic complaints. The main aim was to evaluate a clinical impression of a high degree of extraversion in narcoleptic patients, which according to Eysenck's model could be related to a disturbance in the arousal regulation. Narcoleptic patients had higher anxiety-neuroticism scores than normal individuals, particularly in terms of Somatic Anxiety. They had unexpectedly low scores in some socialization scales, and were contrary to our hypothesis slightly lower in the extraversion variables, than the comparison groups. The high scores in anxiety-neuroticism personality scales may depend on an anxiety-provoking effect of central stimulant drugs and/or a lability of the autonomic regulation associated with the disorder. Further, the strain caused by the narcoleptic symptoms may result in high scores in anxiety-neuroticism scales and low scores in socialization scales, via social-learning mechanisms. However, there may also be a coupling between the genetics of narcolepsy and biologically based personality traits.     

Some nonmasking auditory postsignal effects

Observers were asked to detect a 20-msec segment of a sinusoidal signal masked by a band-limited white noise. A postsignal decrease in the spectrum level of the noise within the critical band of the signal enhanced the detectability of that signal if the decrease occurred within approximately 25 msec following signal termination. Postsignal decreases outside the critical band of the signal, and decreases within the critical band delayed longer than approximately 40 msec, reduced the detectability of the signal for decrease delays up to between approximately 150 and 400 msec, depending on the spectral characteristics of the decrease. Comparisons with typical backward masking results indicate probable common factors of short-term temporal summation and longer term attention.     

The industrial prestige hierarchy

The major concerns of this research were to determine the prestige evaluations of selected industries by individuals representing diverse groups, and to compare the results with a previous study. Questionnaires were administered to five occupational subgroups (accountants, personnel managers, secretaries, electricians, security guards) and two university groups, one composed of white students, the other of black students. A total of 400 respondents indicated their prestige ratings of 30 industries in terms of a five-point scale. The major findings may be summarized as follows: (1) the industries were perceived to be arranged hierarchically as to prestige but many of the differences were not statistically significant; (2) various subgroups of the sample shared a closely similar evaluation pattern; and (3) industrial ratings had changed but little through time and did not vary significantly from one geographical area to another.     

A psychometric study of positive and negative nominations and the pupil evaluation inventory

Two peer evaluation measures, the Pupil Evaluation Inventory (PEI) and positive and negative nominations were compared in a sample of 260 children in grades 1 to 5. Stabilities of the measures were assessed over a 4-month period. In the total sample, PEI factors and negative nominations were more stable than positive nominations, and PEI Aggression and Withdrawal scores were more stable than negative nominations. PEI Aggression and Withdrawal scores were more stable in grades 3 and 5 than in grade 1, and the Likability factor was more stable in grades 2 to 5 than in grade 1. Negative nominations were most strongly correlated with the PEI Aggression factor, and positive nominations were more strongly correlated with Likability than with Aggression. Implications for the use of these nomination measures are discussed.During the writing of this report Charlotte Johnston was supported by a doctoral fellowship from the Social Sciences and Humanities Research Council of Canada. The authors wish to express appreciation to Dr. Edward Vertuno and to all the staff, teachers, and children of the Developmental Research School, Florida State University, whose cooperation made this research possible.     

The Importance of Parental Attributions in Families of Children with Attention-Deficit/Hyperactivity and Disruptive Behavior Disorders

Presents a social-cognitive model outlining the role of parental attributions for child behavior in parent–child interactions. Examples of studies providing evidence for the basic model are presented, with particular reference to applications of the model in families of children with Attention-Deficit/Hyperactivity Disorder (ADHD) and/or oppositional defiant/conduct disordered behavior. Parent or child factors that may moderate the operation of links within the model are suggested, and evidence of such moderator effects is presented. The conceptualization and measurement of parental attributions also are discussed. The limitations of the model and existing evidence, as well as recommendations for future research in this area are presented throughout the paper. The paper concludes with a summary of the clinical implications of the model and research on parental attributions with regards to improving interventions for families of children with attentional and disruptive behavior problems.     

New indirect measures of "inattentive" visual grouping in a change-detection task

It has often been suggested that Gestalt-like visual grouping processes may operate preattentively, but Mack and Rock (1998) suggested that no visual grouping takes place under "inattention." We introduced a new method to assess this. While participants performed a demanding change-detection task on a small matrix at fixation, task-irrelevant background elements were arranged by color sinilarity into columns, rows, or pseudorandomly. Independent of any change in the target matrix, background grouping could also change or remain the same on each trial. This influenced accuracy of change judgments for the central task, even though background grouping or its change usually could not be explicitly reported when probed with surprise questions as in Mack and Rock. This suggests that visual grouping may arise implicitly under inattention and provides a new method for testing the boundaries of this processing. Here we extended the initial result to changes in background grouping remote from the target and to those occurring across an intervening saccade.