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Simultaneous execution of two cognitive operations : Evidence from a continuous updating paradigm
(2004)
The authors tested the hypothesis that with adequate practice, people can execute 2 cognitive operations in working memory simultaneously. In Experiment 1, 6 students practiced updating 2 items in working memory through 2 sequences of operations (1 numerical, 1 spatial). In different blocks, imperative stimuli for the 2 sequences of operations were presented either simultaneously or sequentially. Initially, most participants experienced substantial dual-task costs. After 24 sessions of practice, operation latencies for simultaneous presentation were equal to the maximum of times for the 2 operations in the sequential condition, suggesting perfect timesharing. Experiment 2 showed that a reduction of dual-task costs requires practice on the combination of the 2 updating tasks, not just practice on each individual task. Hence, the reduction of dual-task costs cannot be explained by shortening or automatization of individual operations
To explore the sexual scripts of adolescents, 131 10th and 11th graders generated descriptions of three scripts for sexual interactions: (1) the prototypical script for the first consensual sexual intercourse with a new partner attributed to adolescents in general; (2) the script for the first consensual sexual intercourse with a new partner endorsed by themselves individually; (3) the script for a nonconsensual sexual intercourse. Normative acceptance of risk elements of sexual interactions and acceptance of physical force to obtain sexual intercourse with a non-consenting partner were also measured. The results showed that the individual and general scripts for consensual sexual interactions reflected traditional gender roles. The script for the nonconsensual intercourse was based on the <<real rape>> stereotype. Compared to the general scripts for the age group as a whole, individual scripts were more conservative, containing fewer risk elements. Normative acceptance of risk elements predicted the extent to which risk elements were part of the general and individual scripts. In addition, acceptance of physical force predicted the risk elements of the individual scripts
Schulwechsel als kritisches Lebensereignis und die Entwicklung des Selbstkonzeptes bei Jugendlichen
(2004)
In der vorliegenden Studie wird der Schulwechsel von der Grundschule in die Sekundarstufe I als ein wichtiges schulisches normatives kritisches Lebensereignis mit spezifischer Relevanz für die Entwicklung des Selbstkonzeptes in der frühen Adoleszenz charakterisiert. 43 Berliner Jugendliche wurden längsschnittlich sowohl vor (6. Klasse) als auch nach dem Schulwechsel (7. Klasse) zu ihrem Selbstkonzept, zu ihrem körperlichen Entwicklungstempo sowie zu ihren Erfahrungen beim Schulwechsel befragt. Der Schulwechsel wurde von der Mehrzahl der untersuchten Jugendlichen überwiegend positiv erlebt. Dies manifestierte sich auch in einem deutlich stabilen Entwicklungsverlauf des Selbstkonzeptes. Dabei erwies sich das körperliche Entwicklungstempo als ein bedeutsamer Einflussfaktor, dessen Entwicklungsrelevanz sich in Abhängigkeit von der gewählten Schulform bei Schulwechsel (Gymnasium vs. Real-/Gesamtschule) kontextspezifisch zeigte.
Schemata in der Entwicklung von Kindern : was an der Vorstellung von kindlichen Lernmustern dran ist
(2004)
Background Bringing up children with atopic dermatitis (AD) is widely perceived as being stressful because parenting demands considerable time and energy. There have been only a few studies to assess the extent of problems experienced by the parents. Objective To assess the psychosocial well-being of parents caring for a young child with AD and to examine the relationship between parental quality of life and disease-related and sociodemographic variables. Methods One hundred and eighty-seven parents of young children with AD attending an inpatient rehabilitation clinic participated in the study. At admission, parents completed a set of questionnaires (assessing health-related quality of life, coping with the disease, family functioning). Dermatologists assessed disease severity using the severity scoring of AD index (SCORAD). Results In general, parents cope well with their situation. Compared with normal values, high rates of psychological distress were observed in a subsample of parents of children with AD. Parents of children with a higher severity of disease reported a significantly higher impact on family functioning, a greater financial burden and a higher level of disease management. Parental disease management could be predicted by the familial situation, their personal well-being and the severity of disease of their child. Differences attributed to their child's gender or age were not observed. Conclusions Childhood AD has a profound impact on the emotional and social well-being of many of the parents. The results underline the importance of psychological treatment approaches designed to increase parental well-being and ability to cope with stress and social strain
The relationship was examined between exposure to and preference for violent electronic games and aggressive norms as well as hostile attributional style. Following a pilot study to sample widely used electronic games varying in violent content, 231 eighth-grade adolescents in Germany reported their use of and attraction to violent electronic games. They also completed measures of hostile attributional style and endorsement of aggressive norms. There were significant gender differences in usage and attraction to violent electronic games, with boys scoring higher than girls. Significant relationships were found between attraction to violent electronic games and the acceptance of norms condoning physical aggression. Violent electronic games were linked indirectly to hostile attributional style through aggressive norms. The findings are discussed with respect to North American research on the aggression-enhancing effect of violent electronic games. (C) 2003 The Association for Professionals in Services for Adolescents. Published by Elsevier Ltd. All rights reserved