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51.
Children younger than 3 years have difficulty with search tasks that involve hidden displacement. Partial visual information was provided about a ball's path as it moved toward a hiding place. Children (2.0 and 2.5 years old) saw a ball rolling down a ramp placed behind a transparent screen with 4 opaque doors. A wall, placed on the ramp and directly behind 1 of the doors, protruded above the screen and stopped the ball. Children were asked to find the ball. The transparency of the screen permitted visual tracking of the ball between the doors, but its final resting place was obscured. Both age groups were equally proficient at tracking the ball as it rolled behind the screen, but the 2.5-year-olds were more likely to reach to the correct door. Looking behavior was related to errors in the younger group in that tracking that stopped short or continued past the correct door was associated with incorrect choices. 相似文献
52.
Boris B. Baltes Cara C. Bauer Linda M. Bajdo Christopher P. Parker 《Journal of business and psychology》2002,17(1):3-17
Previous monomethod research has found mixed support for nonlinear effects between certain job characteristics (e.g., job autonomy, job complexity) and outcome variables (e.g., job performance). We hypothesized that these weak nonlinear findings may be due to the prevalence of monomethod research that can lead to a lack of complete measurement and/or introduce common methods variance, either of which may mask the true shape of relationships. Using hierarchical regression analyses and a multitrait–multimethod (MTMM) research design, we found strikingly different results between monomethod and MTMM data when considering the relationships between three psychological climate variables and job satisfaction. While the monomethod results mirrored earlier inconclusive findings, the MTMM data indicated that nonlinear equations explained significantly more of the relationship between all three climate dimensions and job satisfaction. These results suggest that the use of MTMM data allows one to more effectively test for nonlinear effects. Furthermore, these nonlinear results suggest that the format of employee questionnaires should probably change from asking how much an employee has of certain constructs to asking does the employee want more or less of these constructs. 相似文献
53.
Limebeer CL Parker LA 《Journal of experimental psychology. Animal behavior processes》2000,26(4):371-384
Conditioned rejection reactions displayed in the taste reactivity test are exclusively produced by treatments that elicit nausea. The present experiments demonstrate that pretreatment with the antinausea agent ondansetron interferes with both the establishment and the expression of conditioned rejection reactions. Ondansetron did not interfere with lithium-induced taste avoidance in either a 1-bottle or a 2-bottle test. In fact, when rejection reactions were measured during a consumption test, ondansetron selectively attenuated rejection reactions, with only a slight modification of consumption. These results suggest that conditioned rejection reactions, but not conditioned taste avoidance, reflect nausea in rats that can be attenuated by ondansetron pretreatment. 相似文献
54.
In this study, we develop and test two strategies for reducing the effects of performance expectations on behavioral ratings. A 3 × 3 experimental design (N = 169), manipulating preobservation performance cues (positive, negative, or none) and the type of intervention (halo error training, structured recall memory, or none), was conducted. The results of this study indicate that both interventions reduced the effects of performance expectations on behavioral ratings. However, analyses of rating accuracy and measures from both recognition memory and recall memory tests suggest that the structured recall memory intervention has distinct advantages. These analyses indicate that the structured recall intervention can reduce raters' reliance on heuristics and increase the correspondence between raters' memory and their subsequent ratings. 相似文献
55.
Structure and stimulus familiarity: a study of memory in chess-players with functional magnetic resonance imaging 总被引:1,自引:0,他引:1
A grandmaster and an international chess master were compared with a group of novices in a memory task with chess and non-chess stimuli, varying the structure and familiarity of the stimuli, while functional magnetic resonance images were acquired. The pattern of brain activity in the masters was different from that of the novices. Masters showed no differences in brain activity when different degrees of structure and familiarity where compared; however, novices did show differences in brain activity in such contrasts. The most important differences were found in the contrast of stimulus familiarity with chess positions. In this contrast, there was an extended brain activity in bilateral frontal areas such as the anterior cingulate and the superior, middle, and inferior frontal gyri; furthermore, posterior areas, such as posterior cingulate and cerebellum, showed great bilateral activation. These results strengthen the hypothesis that when performing a domain-specific task, experts activate different brain systems from that of novices. The use of the experts-versus-novices paradigm in brain imaging contributes towards the search for brain systems involved in cognitive processes. 相似文献
56.
Using an adaptation of the Attentional Networks Test, we investigated aspects of executive control in children with chromosome 22q11.2 deletion syndrome (DS22q11.2), a common but not well understood disorder that produces non-verbal cognitive deficits and a marked incidence of psychopathology. The data revealed that children with DS22q11.2 demonstrated greater difficulty than controls in locating and processing target items in the presence of distracters. Importantly, children with DS22q11.2 showed a deficit in the ability to monitor and adapt to stimulus conflict. These data provide evidence of inadequate conflict adaptation in children with DS22q11.2, a problem that is also present in schizophrenia. The findings of specific executive dysfunction in this group may provide a linkage between particular genetic abnormalities and the development of psychopathology. 相似文献
57.
It seems to be a phenomenon of contemporary life that we consider goodness embarrassing and rather dull. In contrast, the
activities and inner lives of villains are deemed more complex and fascinating than those of good people. This paper attempts
to understand the conception of goodness that underlies this phenomenon, and I suggest that informing it is the combination
of two ideas, in tension with each other: firstly, a distorted understanding of the ancient conception of full virtue as the
absence of all inner conflict; and secondly, the intuition that real goodness is only apparent and generated in inner conflict.
In response, I offer an alternative picture of goodness as an ongoing, active and progressive relation to value, and conclude
that in order to render goodness attractive again we need more adequate portraits of goodness from both philosophy and art. 相似文献
58.
Children who experienced a highly stressful natural disaster, Hurricane Andrew, were interviewed within a few months of the event, when they were 3-4 years old, and again 6 years later, when they were 9-10 years old. Children were grouped into low, moderate, or high stress groups depending on the severity of the experienced storm. All children were able to recall this event in vivid detail 6 years later. In fact, children reported over twice as many propositions at the second interview as at the first. At the initial interview, children in the high stress group reported less information than children in the moderate stress group, but 6 years later, children in all three stress groups reported similar amounts of information. However children in the high stress group needed more questions and prompts than children in the other stress groups. Yet children in the high stress group also reported more consistent information between the two interviews, especially about the storm, than children in the other stress groups. Implications for children's developing memory of stressful events are discussed. 相似文献
59.
The present study examined parental support and monitoring as they relate to adolescent outcomes. It was hypothesized that support and monitoring would be associated with higher self-esteem and less risky behavior during adolescence. The diverse sample included 16,749 adolescents assessed as part of the National Educational Longitudinal Study. Both high parental support and parental monitoring were related to greater self-esteem and lower risk behaviors. The findings partially confirm, as well as extend, propositions in attachment theory. 相似文献
60.
Longitudinal effects of lean production on employee outcomes and the mediating role of work characteristics 总被引:2,自引:0,他引:2
Parker SK 《The Journal of applied psychology》2003,88(4):620-634
The author discusses results from a 3 year quasi-experimental field study (N = 368), which suggest negative effects on employee outcomes after the implementation of 3 lean production practices: lean teams, assembly lines, and workflow formalization. Employees in all lean production groups were negatively affected, but those in assembly lines fared the worst, with reduced organizational commitment and role breadth self-efficacy and increased job depression. A nonequivalent control group had no negative changes in outcomes. Mediational analyses showed that the negative effects of lean production were at least partly attributable to declines in perceived work characteristics (job autonomy, skill utilization, and participation in decision making). The study also shows the longitudinal effects of these work characteristics on psychological outcomes. Implications for lean production, work design, and employee well-being are discussed. 相似文献