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Kyle Menary Paul F. Collins James N. Porter Ryan Muetzel Elizabeth A. Olson Vipin Kumar Michael Steinbach Kelvin O. Lim Monica Luciana 《Intelligence》2013
Neuroimaging research indicates that human intellectual ability is related to brain structure including the thickness of the cerebral cortex. Most studies indicate that general intelligence is positively associated with cortical thickness in areas of association cortex distributed throughout both brain hemispheres. In this study, we performed a cortical thickness mapping analysis on data from 182 healthy typically developing males and females ages 9 to 24 years to identify correlates of general intelligence (g) scores. To determine if these correlates also mediate associations of specific cognitive abilities with cortical thickness, we regressed specific cognitive test scores on g scores and analyzed the residuals with respect to cortical thickness. The effect of age on the association between cortical thickness and intelligence was examined. We found a widely distributed pattern of positive associations between cortical thickness and g scores, as derived from the first unrotated principal factor of a factor analysis of Wechsler Abbreviated Scale of Intelligence (WASI) subtest scores. After WASI specific cognitive subtest scores were regressed on g factor scores, the residual score variances did not correlate significantly with cortical thickness in the full sample with age covaried. When participants were grouped at the age median, significant positive associations of cortical thickness were obtained in the older group for g-residualized scores on Block Design (a measure of visual-motor integrative processing) while significant negative associations of cortical thickness were observed in the younger group for g-residualized Vocabulary scores. These results regarding correlates of general intelligence are concordant with the existing literature, while the findings from younger versus older subgroups have implications for future research on brain structural correlates of specific cognitive abilities, as well as the cognitive domain specificity of behavioral performance correlates of normative gray matter thinning during adolescence. 相似文献
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Alan J. Dubinsky Marvin A. Jolson Ronald E. Michaels Masaaki Kotabe Chae Un Lim 《Journal of Personal Selling & Sales Management》2013,33(4):9-21
Much research attention has been directed over the past twenty-five years to ethical issues in marketing. One area of marketing that is gaining research interest is the selling arena. Despite the extant literature on selling ethics, few studies have focused on identifying situations that pose ethical problems for field sales personnel. This paper reports results of an investigation that examined salespeople's perceptions concerning what selling situations or practices are ethical questions, what situations are presently addressed by company policies, and what situations should be addressed by company policies. Findings reveal that salespersons seemingly are desirous of receiving more management guidance than they currently are receiving regarding their ethical concerns. Implications for managers and researchers are provided. 相似文献
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Alan J. Dubinsky Marvin A. Jolson Ronald E. Michaels Masaaki Kotabe Chae Un Lim 《Journal of Personal Selling & Sales Management》2013,33(4):25-37
Although empirical work has examined differences between salesmen and saleswomen on various aspects, no comprehensive study has examined gender-based distinctions in salespeople's work motivation. The paucity of research attention on this topic is surprising given the plethora of literature in organizational behavior. This paper reports the results of an investigation that explored male and female salespeople's perceptions of expectancies, instrumentalities, and valence for rewards. Findings reveal minimal contrast between the two groups. Implications for practitioners and researchers are provided. 相似文献
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The innovative features of multi-player computer games offer compelling opportunities for self-representation during interactions, and the ways in which these avatars are chosen and manipulated may change interactive experiences. This study investigated the effects of avatar choice (choice vs. no choice) and visual point of view (POV; first-person vs. third-person) on the physiological arousal and subjective evaluations of game experiences. A 2 (Avatar Choice, No Avatar Choice) × 2 (first-person POV, third-person POV) × 2 (female players, male players) mixed-design experiment was conducted (N = 22). The results demonstrated that being able to pick the character that will represent the player in the game leads to greater arousal, especially for males. Visual POVs alone did not affect the game player's arousal, but moderated the effect of avatar choice on the game player's heart rates. Avatar choice produced a more pronounced effect in the third-person POV (where the “camera” was located behind the avatar) in which avatar choice was visually more reinforced than in the first-person POV (where the “camera” was the eyes of the avatar). The results also revealed that the gender of the game player was a significant factor in game play experience. The results suggest theoretical implications of video game self-representation and effects on game player's psychophysiological responses. 相似文献
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Information Technology Support For Debiasing Group Judgments: An Empirical Evaluation 总被引:1,自引:0,他引:1
Human judgments, made by either individuals or groups, have been found to contain biases. One of the most prevalent biases identified is the availability bias, associated with the phenomenon that events which are more available to human memory are correspondingly judged as occurring more frequently or as being more important. This paper is concerned with how to reduce the availability bias in the group context. It reports an experiment in which two computer-based support facilities, electronic brainstorming and electronic mail, were tested for their contributions to reducing the availability bias. A 2 x 2 experimental design was used: electronic brainstorming (available or not) and communication mode (electronic or verbal). Forty teams of three members each were asked to work on a task involving the rating of the importance of a number of items associated with a secretary's task. Both electronic brainstorming and electronic communication helped reduce the availability bias. In both cases, the reduction in bias was due to increased attention paid to items that were found to have low availability in the absence of these support tools. Copyright 2000 Academic Press. 相似文献
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Cristiano Inguglia Sonia Ingoglia Francesca Liga Alida Lo Coco Maria Grazia Lo Cricchio Pasquale Musso Charissa S. L. Cheah Mindy R. Gutow Hui Jun Lim 《Journal of child and family studies》2016,25(2):419-431
The present study examined the associations between emerging adults’ perceived parental psychological control and autonomy support, and their autonomy, relatedness and internalizing difficulties in Italy and the U.S. The participants included 494 Italian and 414 U.S. college students, between 18 and 28 years of age (Mean = 21.58, SD = 2.18). Our findings showed that dependency-oriented psychological control had no significant direct associations with autonomy, relatedness or internalizing difficulties. Moreover, the association between parental autonomy support and internalizing problems was fully intervened by autonomy and relatedness, whereas the association between achievement-oriented psychological control and anxiety and depressive symptoms was partially intervened by autonomy and relatedness. Finally, although parental psychological control and autonomy support had similar effects on maladjustment across the two countries, relatedness appeared to play a more central role as an intervening variable for anxiety in the Italian group than in the U.S. group. Overall, our findings highlighted the importance of examining parents’ contributions to emerging adults’ internalizing problems via autonomy support and psychological control across cultures. 相似文献
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This article explores integrating place-based education with critical mathematics toward teaching mathematics for spatial justice. Local Lotto, a curricular module with associated digital tools, was designed to investigate the lottery as a critical spatial phenomenon and piloted in urban high schools. This article describes findings from the second iteration in a remedial class in a low-income neighborhood. The research questions consider how the spatial focus supported the learning of mathematics and provided opportunities for students to think critically about the lottery using that mathematics. Findings include student interest in and engagement with the theme of the lottery familiar from outside of school with associated social justice implications. Students used mathematics and spatial evidence, at various levels of spatial scale, to support arguments about the lottery with greater success at narrower levels of scale. Suggestions about further innovations to scaffold place in a “critical pedagogy of place” in mathematics are provided. 相似文献