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731.
732.
The number of items that can be individuated at a single glance is limited. Here, we investigate object individuation at a higher temporal resolution, in fractions of a single glance. In two experiments involving object individuation we manipulated the duration of visual persistence of the target items with a forward masking procedure. The number of items as well as their stimulus–onset asynchrony (SOA) to the mask was varied independently. The results showed main effects of numerosity and SOA, as well as an interaction. These effects were not caused by a generic reduction of item visibility by the mask. Instead, the SOA manipulation appeared to fractionate the time to access the sensory image. These findings suggest that the capacity limit of 3–4 items found in object individuation is, at least partially, the consequence of the temporal window of access to sensory information. 相似文献
733.
Daniel Spurk Andreas Hirschi 《European Journal of Work and Organizational Psychology》2013,22(6):736-751
ABSTRACTIntegrating an interactionist model of personality development, the cumulative continuity model of personality development, and selection–evocation–manipulation theory, the present study analysed reciprocal relations of the Dark Triad common core and its sub-traits of narcissism, psychopathy, and Machiavellianism with competitive psychological climate. Moreover, within a large (N = 1,185) and longitudinal sample of employees from Germany, latent cross-lagged panel analyses were applied to analyse the moderating roles of age and organization change (i.e., organizational turnover). Overall, results revealed positive reciprocal relations between the Dark Triad common core, its sub-traits, and competitive psychological climate. The Dark Triad common core and Machiavellianism were more stable within the older (50–59 years) compared to the younger (25–34 years) age group. However, we found no age differences for the relation between competitive psychological climate and change in the Dark Triad common core or its sub-traits. Among employees who changed organizations, the Dark Triad common core, narcissism, and psychopathy were more strongly positively related to the change in competitive psychological climate than in the non-change group. This suggests stronger selection compared to evocation–manipulation effects for individuals with high values in the Dark Triad common core, narcissism, and psychopathy, but not for Machiavellianism. 相似文献
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Episodic memory is a polygenic behavioral trait with substantial heritability estimates. Despite its complexity, recent empirical evidence supports the notion that behavioral genetic studies of episodic memory might successfully identify trait-associated molecules and pathways. The development of high-throughput genotyping methods, of elaborated statistical analyses and of phenotypic assessment methods at the neural systems level will facilitate the reliable identification of novel memory-related genes. Importantly, a necessary crosstalk between behavioral genetic studies and investigation of causality by molecular genetic studies will ultimately pave the way towards the identification of biologically important, and hopefully druggable, genes and molecular pathways related to human episodic memory. 相似文献
738.
Optimal use of assessment instruments for the detection and diagnosis of eating disorders (ED) depends on the availability of normative data. The aim of this work was to, for the first time, collect norms for both the Eating Disorder Examination Questionnaire (EDE-Q) and the newly developed Clinical Impairment Assessment (CIA) Scale from a general population of young women in Sweden, as well as from a clinical population of ED patients in Sweden. Participants were composed of both a randomized sample from the general population of women aged 18–30 years (N = 760) as well as from a clinical population aged 18–66 years (N = 2383). Data for the clinical population was extracted from the Stepwise database. Mean scores, standard deviations and percentile ranks for the global for the EDE-Q (as well as its subscales) and the CIA are presented. Prevalence figures of key eating disorder behaviors are also reported. Comparisons are made between the results in the present study with other existing normative studies on the EDE-Q and the CIA. The present study contributes to improving the accuracy of the interpretation of scores of the widely used self-report measure of ED, the EDE-Q, and the CIA, both of which play important roles in for diagnosis, prevention and intervention of ED. 相似文献
739.
Fischer P Greitemeyer T Kastenmüller A Vogrincic C Sauer A 《Psychological bulletin》2011,137(3):367-390
In recent years, there has been a surge in the quantity of media content that glorifies risk-taking behavior, such as risky driving, extreme sports, or binge drinking. The authors conducted a meta-analysis involving more than 80,000 participants and 105 independent effect sizes to examine whether exposure to such media depictions increased their recipients' risk-taking inclinations. A positive connection was found for overall, combined risk taking (g=.41); as well as its underlying dimensions: risk-taking behaviors (g=.41), risk-positive cognitions and attitudes (g=.35), and risk-positive emotions (g=.56). This effect was observed across varying research methods (experimental, correlational, longitudinal); types of media (video games, movies, advertising, TV, music); and differing risk-related outcome measures (e.g., smoking, drinking, risky driving, sexual behavior). Multiple moderator analyses revealed 2 theoretically new boundary conditions for sociocognitive models. First, the effect was stronger for active (i.e., video games) than for passive (e.g., film, music) exposure to risk-glorifying media content. Second, the effect was stronger when there was a high degree of contextual fit between the media content and type of risk-taking measure. The theoretical, practical, and societal implications of the present research synthesis are discussed. 相似文献
740.
Sletteng R Harnang AK Hoxmark E Friborg O Aslaksen PM Wynn R 《Psychological reports》2011,109(2):663-674
Motivation is a widely used concept in substance use treatment, and is commonly seen as a premise for change during treatment. Different measures of motivation have been suggested. A relatively new instrument is the Drug Use Disorders Identification Test-Extended (DUDIT-E), developed in Sweden. This instrument has recently been introduced in Norway. The present study examined the Motivational Index of the Norwegian version of the Drug Use Disorders Identification Test-Extended (DUDIT-E). We tested whether the three-factor model ("Positive aspects of substance abuse"; "Negative aspects of substance abuse"; and "Treatment readiness") suggested by previous studies could be replicated in a sample of Norwegian inpatients. Responses to the DUDIT-E were obtained from 105 patients admitted to inpatient substance abuse treatment in Northern Norway. Exploratory common factor analyses were used to compare the factor structure from the current sample with the Swedish sample of mainly detoxification patients and prison inmates. The current sample did not include prison inmates, and it consisted of more women than the Swedish sample. The samples did not differ according to age or substance dependency. The analyses suggested that six primary factors was the most efficient way of combining the item scores, and not 11 as in the Swedish sample. A second-order factor analysis found best support for a two-factor solution, and hence, did not replicate the previously suggested three-factor model either. Several regression analyses comparing the efficiency of the different ways of combining the DUDIT scores in primary or secondary factor scores indicated that the model involving six sum scores had best merit and should be explored further. 相似文献