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It is widely believed that advantages of hemispheric asymmetries originated in better cognitive processing, hence it is often implied that the relationship between hemispheric asymmetry and cognitive performance is linearly positive: the higher the degree of lateralization in a specific cognitive domain, the better the performance in a corresponding task. Yet, the empirical evidence for this notion is mixed and the statistical methods to analyze this relationship have been criticized. The present study therefore investigated the relationship between hemispheric asymmetries and cognitive performance in two behavioral tasks (a left-lateralized word-matching task and a right-lateralized face-decision task) in 230 participants (140 women, 90 men) by using two different approaches. Both methods correspondingly revealed that a relationship between hemispheric asymmetries and cognitive performance does exist. Contrary to a positive (linear) relationship however, the data could be best described by an inverted U-shaped curve. Although the optimal degree of lateralization seemed to be task-specific, a slight or moderate degree of hemispheric asymmetry achieved best cognitive performance in all tasks. Moreover, performances deteriorated towards extreme ends of lateralization (i.e., participants with either extreme left or right hemispheric biases). Taken together, the present study provides evidence against the notion that higher lateralization is related to enhanced cognitive performance. 相似文献
223.
Rose Weitz 《Sexuality & culture》2010,14(1):17-32
This article examines the portrayal of midlife women’s sexuality in 13 recent U.S. narrative films. Content analysis of these
films suggests that film portrayals of midlife women’s sexuality are relatively muted, with the most positive portrayals found
in the broadest comedies. In addition, midlife women’s bodies are more often displayed as objects of humor than as objects
of desire, the “female gaze” at the male body is shown only humorously, and midlife women’s sexuality is primarily validated
for slim, white, middle-class women in committed romantic relationships with “age-appropriate” partners. Nevertheless, these
films suggest that midlife women should have sexual desires, should act on those desires, should experience sexual pleasure,
and should not sacrifice their sexual needs for a man’s approval. 相似文献
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Using experimental paradigms from economics and social psychology, the authors examined the cross-cultural applicability of 3 widely held assumptions about preference and choice: People (a) recruit or construct preferences to make choices; (b) choose according to their preferences; and (c) are motivated to express their preferences in their choices. In 6 studies, they compared how middle-class North American and Indian participants choose among consumer products. Participants in both contexts construct nonrandom preferences at similar speeds. Those in Indian contexts, however, are slower to make choices, less likely to choose according to their personal preferences, and less motivated to express their preferences in their choices. The authors infer that the strong link between preferences and choices observed among North Americans is not a universal feature of human nature. Instead, this link reflects the disjoint model of agency, which prescribes that people should choose freely on the basis of their preferences. In contrast, Indian contexts reflect and promote a conjoint model of agency, according to which agency is responsive to the desires and expectations of important others and may require restraining one's preferences. (PsycINFO Database Record (c) 2008 APA, all rights reserved). 相似文献
226.
Cultural influences on neural substrates of attentional control 总被引:3,自引:0,他引:3
Behavioral research has shown that people from Western cultural contexts perform better on tasks emphasizing independent (absolute) dimensions than on tasks emphasizing interdependent (relative) dimensions, whereas the reverse is true for people from East Asian contexts. We assessed functional magnetic resonance imaging responses during performance of simple visuospatial tasks in which participants made absolute judgments (ignoring visual context) or relative judgments (taking visual context into account). In each group, activation in frontal and parietal brain regions known to be associated with attentional control was greater during culturally nonpreferred judgments than during culturally preferred judgments. Also, within each group, activation differences in these regions correlated strongly with scores on questionnaires measuring individual differences in culture-typical identity. Thus, the cultural background of an individual and the degree to which the individual endorses cultural values moderate activation in brain networks engaged during even simple visual and attentional tasks. 相似文献
227.
Genetic and environmental sources of continuity and change in aggression were studied in a sample of 1,041 twin pairs (364 monozygotic; 348 same‐sex dizygotic; and 329 opposite‐sex dizygotic) as part of an ongoing, population‐based Finnish twin‐family study. At ages 12 and 14, the twins' aggression was assessed by their classroom teachers, using a rating form of the Multidimensional Peer Nomination Inventory. Genetic and environmental sources of continuity and change were studied by fitting a longitudinal bivariate Cholesky decomposition model. Longitudinal model‐fitting results indicated that both genetic and environmental factors influenced continuity in aggression during this 2‐year period, but the age‐to‐age correlation of these factors differed by sex. Continuity in boys' aggression was mediated by genes and common environmental factors; in girls, in contrast, continuity was due primarily to common environmental, and to a lesser degree, unique environmental factors. Genes and unique environments contributed to change in aggression in both sexes. Aggr. Behav. 31:1–13, 2006. © 2006 Wiley‐Liss, Inc. 相似文献
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Assoc. Prof. Imre Szecsödy MD PhD 《Forum der Psychoanalyse》2007,23(4):393-401
The manifold functions of a supervisor in following the course of complex processes together with the trainee, are: ? to keep the goals of the supervision in view, ? to establish a teaching alliance and to support the wish and ambitions of the candidate to learn, ? to build a platform for the complex interactions with the trainee with regard to the dynamics of the training situation and keeping in mind the institutional influences, ? to lay down the setting for the work, ? to explore and to reflect how transference and counter-transference influence the interaction between patient and analyst as well as between trainee and supervisor, ? to examine these interactions together focussing continuously on the interaction between candidate and patient, and to encourage the candidate to do the same on his own, ? to continuously formulate hypotheses about the core conflict, the transference phenomena and resistance of the patient, ? to explore and reflect on the cooperative work. 相似文献
230.
Adolescents' views of war and peace were assessed among 209 children aged 10-14 who attended a parochial school or its after-school religious program located in a predominantly middle-class, suburban area within commuting distance of New York City. Findings were compared to those of youth surveyed during other armed conflicts, specifically the Vietnam War, the first Persian Gulf War, and the U.S. military involvement in Latin America. The study took place in early fall 2003, and results were interpreted in light of the social climate and complex realities of post 9/11 in New York State, the Catholic Church's initial opposition to the Iraq conflict, and popular opinion. In spite of differences between the Iraq War and other conflicts, findings are remarkably similar. Although the present group is highly preoccupied with terrorism and nuclear war, even in a time of war, participants show concern for what they perceived as affecting their lives directly, rather than with conventional war. While they believe that President Bush was honest about the war in Iraq and right in sending troops, they do not glorify war. On a theoretical level, they overwhelmingly believe that wars are bad and the majority is optimistic that world peace is possible, though they realize that wars are difficult to prevent, believe that they are sometimes needed, and will occur in the future. Unlike the Catholic group surveyed by Tolley during the Vietnam War, however, participants are not as ready to die for their country, although findings show that, overall, like past groups, more boys tend to be pro-war than are girls and participants' views tend to reflect contemporary public opinions. 相似文献