Attributions of behavior in the pediatric mild closed head injury (CHI) population

Forty-one children between the ages of 6 and 11 years with a history of a mild closed head injury and 23 age-, gender-, and IQ-matched typically developing control children participated. All of the children in the CHI sample were referred for a magnetic resonance imaging (MRI) scan at 3 months post-injury and children in the CHI sample were further divided into MRI-Negative (n=31) and MRI-Positive (n=10) conditions according to the MRI results. Parents and teachers completed behavioral checklists at three points, including just prior to the MRI and 6 months post-injury. Prior to the MRI (Time 2), in both samples of children with a CHI, parents reported an increase in externalizing symptoms after the CHI. At 6 months post-injury (Time 3: post-MRI), parents of children in the MRI-Positive group did not report any significant changes in their child's externalizing behaviors when compared with pre-MRI, yet parents of children in the MRI-Negative group reported a further increase in externalizing behaviors. Parent attributions also changed as a function of group membership; whereas no changes were noted in the other two groups, parents of children in the MRI-Negative sample ascribed more controllability at Time 3 when compared with Time 2.     

The Processes of Scientific Discovery: The Strategy of Experimentation

Hans Krebs' discovery, in 1932, of the urea cycle was a major event in biochemistry. This article describes a program, KEKADA, which models the heuristics Hans Krebs used in this discovery. KEKADA reacts to surprises, formulates explanations, and carries out experiments in the same manner as the evidence in the form of laboratory notebooks and interviews indicates Hans Krebs did. Furthermore, we answer a number of questions about the nature of the heuristics used by Krebs, in particular: How domain-specific are the heuristics? To what extent are they idiosyncratic to Krebs? To what extent do they represent general strategies of problem-solving search? The relative generality of KEKADA allows us to view the control structure of KEKADA and its domain-independent heuristics as a model of scientific experimentation that should apply over a broad domain.     

The desire to win: The effects of competitive arousal on motivation and behavior

The paper theoretically elaborates and empirically investigates the “competitive arousal” model of decision making, which argues that elements of the strategic environment (e.g., head-to-head rivalry and time pressure) can fuel competitive motivations and behavior. Study 1 measures real-time motivations of online auction bidders and finds that the “desire to win” (even when winning is costly and will provide no strategic upside) is heightened when rivalry and time pressure coincide. Study 2 is a field experiment which alters the text of email alerts sent to bidders who have been outbid; the text makes competitive (vs. non-competitive) motivations salient. Making the desire to win salient triggers additional bidding, but only when rivalry and time pressure coincide. Study 3, a laboratory study, demonstrates that the desire to win mediates the effect of rivalry and time pressure on over-bidding.     

Genetic factors and neurocognitive traits

Genetic contributions to phenotypic variation in general intelligence have been studied extensively. Less research has been conducted on genetic contributions to specific cognitive abilities, such as attention, memory, working memory, language, and motor functions. However, the existing data indicate a significant role of genetic factors in these abilities. Stages of information processing, such as sensory gating, early sensory registration, and cognitive analysis, also show evidence of genetic contributions. Recent molecular studies have begun to identify candidate genes for specific cognitive functions. Future research, identifying endophenotypes based on cognitive profiles of neuropsychiatric disorders, may also assist in the detection of genes that increase susceptibility to major psychiatric disorders.     

Problems, plans, and ambitions of German and foreign adolescents

In the present study, personal and social problems and ambitions of a group of foreign adolescents (Italians, Spaniards, and Greeks) living in Germany were compared with those of a group of German adolescents. Results showed that family and religion play a much more important and fundamental role for foreign adolescents than for Germans. Although parents seem to have the same importance for all adolescents, the emotional life in the families of Italians, Spaniards, and Greeks is much broader than that of Germans: for foreign adolescents, emotional relations with siblings and grandparents also are important. Again, although German and foreign adolescents do not show significant differences in their religious practices (e.g., church attendance), the latter have much deeper religious beliefs. The results are explained in terms of the different sociocultural backgrounds of these groups of adolescents.     

Figurale Nachwirkungen

Summary The Review attempts to survey the existing literature on the figural after-effects. The main body of the Review is devided into two major parts, one dealing with the empirically observed data on the figural after-effects, and the other with the explanations put forward to explain the occurrence of these effects. Besides, there is a short introduction at the beginning, concluding remarks at the end, and a comprehensive bibliography.

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Dieser Sammelbericht entstand unter Mitarbeit von Frau Dipl.-Psych. Donja Malhotra.

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Zu Dank verpflichtet ist der Verf. Herrn Prof. Dr. Dr. h. c. Wolfgang Metzger für die kritische Durchsicht des Manuskripts, sowie Herrn Dipl.-Psych. Heiner Erke für die Unterstützung bei der Vorbereitung des Manuskripts zum Druck.     

Hindu Leaders in North America?

Abstract. “Are there Hindu leaders in North America”? Can there be leaders of a purportedly invented or imaginary religion that has no shared doctrines or beliefs? This provocative essay offers answers to these and related questions about the nature of Hindu leadership in North America. Three ideal types are examined: Ritualists, Guides, and Administrators. Their roles and responsibilities, though relatively clear in India, have become complicated in their current incarnations in North America. The difficulties are further enhanced when combined with a drive to derive a syncretic form of Hinduism, a pan‐Hinduism that never existed before. This article challenges the leaders of Hinduism in North America to confront and perhaps even jettison their invented identity as a way of becoming better leaders.     

Boundaryless LMX: Examining LMX's Impact on External Career Outcomes and Alumni Goodwill

Research has convincingly shown that leader–member exchange (LMX) is associated with a range of beneficial outcomes for employees within organizations. As employees increasingly pursue boundaryless careers that straddle multiple organizations, it is important to ask: Do advantages from LMX extend beyond the current organization and persist even after employees have left it? We propose that employees in higher quality LMX relationships with their managers benefit from stronger professional development, which can pay off in the form of better career outcomes on the external job market. Further, after leaving, whether or not ex‐employees (i.e., alumni) harbor goodwill toward their former organizations is likely to depend on their LMX quality prior to leaving. Alumni goodwill matters because organizations can potentially reap important strategic benefits from their alumni. Using time separated data including alumni interviews conducted by third‐party consultants, we find that, among employees who quit, pre‐turnover LMX is positively related to higher salaries and greater responsibility in their next jobs and is also positively related to alumni goodwill. Moreover, the strength of the LMX–alumni goodwill relationship depends on whether managers made robust retention efforts after employees communicated their decisions to quit.