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排序方式: 共有225条查询结果,搜索用时 31 毫秒
101.
《Quarterly journal of experimental psychology (2006)》2013,66(2):402-416
Responses tend to be slower to previously fixated spatial locations, an effect known as “inhibition of return” (IOR). Saccades cannot be assumed to be independent, however, and saccade sequences programmed in parallel differ from independent eye movements. We measured the speed of both saccadic and manual responses to probes appearing in previously fixated locations when those locations were fixated as part of either parallel or independent saccade sequences. Saccadic IOR was observed in independent but not parallel saccade sequences, while manual IOR was present in both parallel and independent sequence types. Saccadic IOR was also short-lived, and dissipated with delays of more than ~1500?ms between the intermediate fixation and the probe onset. The results confirm that the characteristics of IOR depend critically on the response modality used for measuring it, with saccadic and manual responses giving rise to motor and attentional forms of IOR, respectively. Saccadic IOR is relatively short-lived and is not observed at intermediate locations of parallel saccade sequences, while attentional IOR is long-lasting and consistent for all sequence types. 相似文献
102.
Jianjun Li 《Philosophical Magazine Letters》2013,93(12):690-700
An elastic–viscoplastic model has been developed for nanotwinned (nt) metals based on coupled intra-twin and twin-boundary-mediated (TBM) deformation mechanisms. The grain-size dependence of intra-twin plasticity was incorporated in the proposed model to determine the transitional twin thickness corresponding to the maximum strength. In addition, the joint distribution of grain size and twin thickness was also taken into account to simulate the microstructure of nt metals. The results obtained show that the TBM deformation mechanism dominated at low strain rate and small twin thickness, and that the grain-size and twin-thickness distributions had significant influence on the macroscopic behavior of nt metals. A linear relation between the transitional twin thickness and grain size is predicted by the proposed model, which is in good agreement with the results obtained from three-dimensional molecular dynamics simulations and experiments. 相似文献
103.
Ronald G. Marteniuk 《Journal of motor behavior》2013,45(4):307-316
For each of 75 Ss several estimates of intra-individual variations were calculated for each of 4 motor skills. The reliability of intra-individual variation for these data, estimated from Pearson productmoment correlations, ranged from r = .31 to r = .51 (in all cases p < .05). It was also found that in 3 of the 4 skills, intra-individual variation correlated significantly (r = .36, .54, .55) with mean performance level. Second order partial correlations, holding constant the effect of mean performance level, were then used to estimate the reliability of intravariation. These correlations were statistically significant and ranged from r = .27 to r = .34. When correlations of intra-individual variation were calculated among the four skills it was demonstrated that intra-individual variation was approximately 95 to 100% task specific. 相似文献
104.
J. Michael Russell 《International Forum of Psychoanalysis》2013,22(2):98-103
Abstract Russell J.M. Perversion, Eating Disorders and Sex Roles. Int Forum Psychoanal 1992;1:98-103. Stockholm. ISSN 0803-706X Perversion is presented as a fascination with something we also regard as repugnant. A perversion like exhibitionism is a metaphor illuminating the stereotypically masculine. An eating disorder such as bulimia provides a metaphor illuminating the stereotypically feminine. It also fits the account given of perversion. Stereotypes for masculine and feminine, though cultivated in social expectations, are rooted in the infant fantasy world. One is fascinated with the fate of what one has ejected (projected). This contributes to a groundwork for masculinity and exhibitionism. One is fascinated and ambivalent about what one takes in (introjects) which contributes to a groundwork for femininity and bulimia. Genitalia are discovered subsequently, as appropriate representations of these options. Our capacity to be socialized into gender roles, and our discovery of our genitalia en route to this socialization, are foreshadowed by these deeper and earlier styles. 相似文献
105.
The search for evolutionary forces shaping the diversity of human personality traits encouraged studies that have found that islanders are relatively closed and introverted, with little interest in the external world. The ‘personality gene flow’ hypothesis was proposed to explain the mechanism underlying this difference, suggesting that the frequency of alleles that influence islander personality traits might progressively increase in the gene pools on islands because of selective emigration of individuals not displaying these alleles. We genotyped 96 individuals from the Italian mainland and 117 from Giglio Island, whose residents were previously assessed regarding their personality traits. We genotyped three polymorphisms: the dopamine D4 receptor (DRD4) exon 3 repeat region, the serotonin‐transporter SLC6A4 5‐HTTLPR indel and the dopamine transporter SLC6A3 DAT1 3′UTR repeat region. Only the DRD4 exon 3 repeat was hypothesised to show varying allele frequencies because this polymorphism could be associated with human migration and personality traits such as extraversion, openness and novelty seeking. As predicted, no differences in allele frequencies were found for the SLC6A4 and SLC6A3 polymorphisms, whereas significant differences were observed in the frequency of the DRD4 exon 3 alleles. The DRD4.2 repeat was more common in mainlanders, as expected, whereas the DRD4.7 allele was over‐represented among islanders who never emigrated. This last result contradicts the suggested association of this allele with long‐distance migrations. We suggest that emigration might have caused gene flow out the island that resulted in somewhat unpredictable changes in the frequencies of specific alleles, thus influencing islander personality traits. Copyright © 2013 European Association of Personality Psychology 相似文献
106.
Huadong Yang Lili Tian Jan Pieter van Oudenhoven Jacomijn Hofstra Qing Wang 《Journal of community & applied social psychology》2010,20(3):202-216
The household registration system (Hukou) implemented by the Chinese government divides the Chinese society into two groups: urban residents and rural residents. Since the 1980s, millions of rural residents have migrated to cities without official permission. In this paper, we investigate urban residents' subtle prejudice towards rural‐to‐urban migrants. Specifically, the impacts of urban residents' socioeconomic status (SES) and their perception of migrants' adaptation styles are examined. A sample including 457 Chinese urban residents is taken from four cities in China. Educational and occupational levels are used to indicate urban residents' SES. Four adaptation styles (integration, assimilation, separation and marginalization) are manipulated by using vignettes. The results show that SES has a negative impact on urban residents' subtle prejudice. This link is further moderated by urban residents' perceptions of migrants' adaptations: the negative effect of SES on subtle prejudice holds only under a perception of integration or assimilation and disappears under a perception of separation or marginalization. Copyright © 2010 John Wiley & Sons, Ltd. 相似文献
107.
Dual Identification and the (De‐)Politicization of Migrants: Longitudinal and Comparative Evidence
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Bernd Simon Frank Reichert Christoph Daniel Schaefer Anne Bachmann Daniela Renger 《Journal of community & applied social psychology》2015,25(3):193-203
The article examines the role of dual identification with both the ethnocultural ingroup and the society of residence in the politicization of migrants. The researchers employed a longitudinal and comparative research design with members of the two largest, but sociologically very different, migrant groups in Germany as research participants (i.e. Turkish migrants and Russian migrants). In line with prior work that has shown that, among members of aggrieved groups, dual identity functions as a politicized collective identity, we found that dual identification fostered political engagement among Turkish migrants. In contrast, Russian migrants reported no substantial grievances, and dual identification negatively affected their subsequent political engagement. The contributions of these findings to an articulation of research on politicization with research on intergroup conflict and a more comprehensive understanding of political phenomena driven by dual identification are discussed. Copyright © 2014 John Wiley & Sons, Ltd. 相似文献
108.
视觉搜索是人类从作用于视觉系统的大量信息中选择相关信息进入信息加工系统的一种认知功能, 同时也是研究选择性注意的一种常用范式。工作记忆作为一种服务于当前任务信息的存储与加工的认知系统, 在视觉搜索过程中扮演着关键角色。为了深入了解工作记忆在视觉搜索过程中的作用机制, 在梳理已有成果的基础上, 分别从工作记忆对靶子模板的储存、视觉搜索项目与靶子模板在工作记忆中的匹配及工作记忆对已检测过搜索项目的记忆三个方面进行综述。最后结论表明工作记忆确实在视觉搜索过程中起作用, 但其作用机制仍存在较多争议。 相似文献
109.
采用虚拟现实技术,将Posner经典二维平面中的线索化范式应用到三维空间,通过两个实验操纵了注意沿着不同方向进行直线转移的方式,考察了注意在三维空间深度位置上进行定向/重定向而产生的晚期抑制效应(返回抑制,Inhibition of return)。结果发现:(1)无论注意沿着何种直线转移方式转移都在深度位置上发现了基于空间的返回抑制;(2)无效提示线索条件下,目标出现在三维空间近处空间时的反应显著快于目标出现在远处空间时的反应,导致了近远空间的返回抑制量存在差异。研究说明了返回抑制效应并不是“深度盲”。 相似文献
110.
工作记忆对基于颜色的注意返回抑制的影响 总被引:1,自引:1,他引:0
前人研究发现返回抑制与工作记忆间存在特异性关系,即某种特定类型的返回抑制只依赖于此种工作记忆。然而,这些研究都只考察了空间和客体返回抑制。为了验证两者间的这种特异性关系在其他类型的返回抑制中仍然存在,本研究考察了工作记忆对基于颜色的返回抑制的影响。结果发现颜色返回抑制只受颜色工作记忆任务的影响,不受形状工作记忆任务影响,这为返回抑制和工作记忆特异性关系的普适性提供了进一步证据。 相似文献