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981.
982.
Stefan Schulz-Hardt Marc Jochims Dieter Frey 《Organizational behavior and human decision processes》2002,88(2)
Decision-making groups in organizations are often expected to function as a “think tank” and to perform “reality testing” to detect the best alternative. A biased search for information supporting the group's favored alternative impairs a group's ability to fulfill these requirements. In a two-factorial experiment with 201 employees and managers from various economic and public organizations, genuine and contrived dissent were investigated as counterstrategies to biased information seeking. Genuine dissent was manipulated by forming three-person groups whose members either all favored the same alternative individually (homogeneous groups) or consisted of a minority and a majority faction with regard to their favored alternative (heterogeneous groups). Contrived dissent was varied by the use or nonuse of the “devil's advocacy” technique. The results demonstrate that heterogeneity was more effective in preventing a confirmatory information-seeking bias than devil's advocacy was. Confidence was identified as an important mediator. Implications for the design of interventions aimed at facilitating reality testing in group decision making are discussed. 相似文献
983.
The present study addresses the question of whether it is possible to use a self‐report measure of psychopathic traits on non‐referred youth samples to identify a subgroup of problematic youths who are particularly problematic and different from other problem youths. A large sample of eighth‐grade, non‐referred adolescents, and their parents were assessed. Results showed that the adolescents exhibiting a low‐socialized psychopathy‐like personality constellation had a more frequent, violent, and versatile conduct‐problem profile than other low‐socialized and well socialized adolescents. The psychopathy‐like adolescents also differed from other poorly socialized adolescents in ways that suggested that their etiological background was different from adolescents with non‐psychopathy‐like conduct problems. We conclude that self‐report measures can indeed be useful for research purposes in subtyping youths with conduct problems. Copyright © 2002 John Wiley & Sons, Ltd. 相似文献
984.
Anne Kathrin Nickel Thomas Hillecke Rieke Oelkers Franz Resch Hans Volker Bolay 《Psychotherapeut》2002,47(5):285-290
Migraine in childhood is a serious health problem with a tendency for chronification. According to the bio-psycho-social model migraine is considered as a disorder generated by multiple factors and requiring an interdisciplinary treatment concept consisting of both medical and psychotherapeutic interventions. Music therapy as a nonverbal, creative arts therapy is especially apt for the treatment of children. A specific treatment concept in music therapy for children with migraine, to be applied within a multidisciplinary framework, and its theoretical background are presented in this article. Music therapy is firmly established within the context of stationary infant psychiatric care. Also, it is presently used as a method of outpatient psychotherapy mainly for children and adolescents. Additionally, music therapy finds frequent use in medical care, special needs education and curative education for children. This article will be limited to the presentation of music therapy as artistic psychotherapy. 相似文献
985.
986.
This study investigated the relation between tests of manual dexterity and attentional functions with 49 normal, right-handed medical students (26 women, 23 men, ages 19-30 years) who were assessed with a Purdue Pegboard Test, Grooved Pegboard Test, and a Test for Attentional Performance, comprising measures of tonic and phasic alertness and divided attention. Weak to moderately high partial correlations controlling for finger size were obtained between pegboard test performance of the left hand and phasic alertness (r = .31-.50). Purdue Pegboard Assembly subtest scores were weakly correlated with divided attention (r = -.39). These findings suggest that attention is an important determinant of performance for manual dexterity tests of the nondominant hand. 相似文献
987.
988.
Pollmann S 《Experimental psychology》2004,51(4):270-278
In a series of event-related functional magnetic resonance studies, we consistently found activation in anterior prefrontal cortex related to visual dimension changes in singleton search tasks. I review these data and discuss possible contributions of anterior prefrontal cortex to attention control in visual search. It is proposed that anterior prefrontal cortex may detect task-relevant stimulus changes when the target is ambiguously defined. This process may occur in the absence of awareness and may support visual dimension weighting by inhibition of the old relevant dimension in favor of the new dimension. 相似文献
989.
Fish cognition: a primate's eye view 总被引:2,自引:2,他引:0
We provide selected examples from the fish literature of phenomena found in fish that are currently being examined in discussions
of cognitive abilities and evolution of neocortex size in primates. In the context of social intelligence, we looked at living
in individualised groups and corresponding social strategies, social learning and tradition, and co-operative hunting. Regarding
environmental intelligence, we searched for examples concerning special foraging skills, tool use, cognitive maps, memory,
anti-predator behaviour, and the manipulation of the environment. Most phenomena of interest for primatologists are found
in fish as well. We therefore conclude that more detailed studies on decision rules and mechanisms are necessary to test for
differences between the cognitive abilities of primates and other taxa. Cognitive research can benefit from future fish studies
in three ways: first, as fish are highly variable in their ecology, they can be used to determine the specific ecological
factors that select for the evolution of specific cognitive abilities. Second, for the same reason they can be used to investigate
the link between cognitive abilities and the enlargement of specific brain areas. Third, decision rules used by fish could
be used as 'null-hypotheses' for primatologists looking at how monkeys might make their decisions. Finally, we propose a variety
of fish species that we think are most promising as study objects.
Accepted after revision: 6 September 2001
Electronic Publication 相似文献
990.
Age-related slowing in recognizing famous names and faces was investigated with event-related brain potentials (ERPs). In a group of young adults, item repetition induced early (220-340 ms) and late (400-700 ms) ERP modulations, apparently signaling the access to, respectively, domain-specific representations of faces and names and domain-general semantic knowledge about the persons. These repetition effects and other ERP components were then used as process-specific time markers in middle-aged and elderly participants. For both faces and names, the elderly participants' responses were slowed, but repetition priming in reaction times was not. The ERP latencies suggested that most of the age-related slowing occurred in the access to domain-specific representations and during response decision, whereas sensory and perceptual processing was largely spared. 相似文献