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211.
The effects of scenario-based risk information on perceptions of susceptibility to Chlamydia and HIV
Fraukje E. F. Mevissen Rob A. C. Ruiter Ree M. Meertens Herman P. Schaalma 《Psychology & health》2013,28(10):1161-1174
AbstractObjectives: The Self-Report Habit Index (SRHI) was originally reported as one-dimensional; however, habit has been described as characterised by several features. Moreover, one-dimensional models for the SRHI have demonstrated poor fit. Therefore, we aimed to compare multidimensional models with a one-dimensional model in both snacking and physical activity habits, besides examining further instrument characteristics.Design: A cross-sectional study was conducted with high school and university students (n?=?555).Main outcome measure: The SRHI adapted for physical activity and for snaking habits was applied at one time point.Results: Nested models with one factor, two factors and three factors were compared. Next, a hierarchical second-order model was tested, and further validity issues, as well as invariance between habits, were examined. Three-dimensional models represented a better fit for both habits. However, fit was still inadequate in the snacking version. In addition, discriminant validity concerns emerged for the physical activity SRHI. Moreover, invariance between the snacking and the physical activity versions was not confirmed.Conclusions: Considering the SRHI as composed by the dimensions of ‘lack of awareness’, ‘lack of control’ and ‘history of behavioural repetition’ seems to be more accurate. Nevertheless, our findings suggest that further research is needed. 相似文献
212.
When does it hurt? Intergroup permeability moderates the link between discrimination and self‐esteem 下载免费PDF全文
David Bourguignon Vincent Y. Yzerbyt Catia P. Teixeira Ginette Herman 《European journal of social psychology》2015,45(1):3-9
Research shows that personal discrimination and group discrimination have distinct effects on personal self‐esteem. Specifically, whereas personal discrimination negatively impacts self‐esteem, group discrimination increases it. We suggest that this pattern is dependent on the socio‐structural context in which individuals experience discrimination. To test this hypothesis, we manipulate intergroup permeability and examine its impact on the link between personal/group discrimination and personal self‐esteem. Results show that a control condition replicates previous research, that is, a positive association between group discrimination and self‐esteem and a negative association for personal discrimination. The positive association of group discrimination disappeared in a permeable context and reversed when the context was presented as impermeable. Moreover, the deleterious effect of personal discrimination on self‐esteem vanished in impermeable contexts. Results are discussed in light of the literature on stigmatization. Copyright © 2015 John Wiley & Sons, Ltd. 相似文献
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In this article, we present SYNCHRON, a computer model of Kolk and van Grunsven's (1985) hypothesis of agrammatic comprehension deficits. According to this hypothesis, parsing fails in agrammatic aphasies since syntactic representational elements that need to be active simultaneously are often not coactive because of disturbances in timing due to brain damage. SYNCHRON has been especially designed to account for two neglected aspects of agrammatic comprehension: degrees of severity and the sentence-complexity effect. We report an attempt to simulate data from two sentence-picture-matching studies in which a qualitatively similar sentence-complexity effect was found at two different average levels of severity. This pattern was reproduced when the timing disorder was assumed to affect syntactic phrasal categories, but not when it was assumed to affect function-word categories. When phrasal categories were involved, fit was not much affected, whether the damage was assumed to slow down the time for an element to be retrieved, or to decrease the time for an element to remain available. 相似文献
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Herman W. Kruysse 《Applied cognitive psychology》1992,6(7):607-618
In this study subjects kept diaries about unintentional acts during driving. They were asked to record errors at skill-based level: slips and lapses. They also recorded the circumstances preceding these errors and the consequences for road safety. It was demonstrated how insight into the nature and antecedents of these ‘human errors’ contributes considerably to the understanding of road safety. By focusing on the conditions which control the occurrence of unintentional acts the study shows how these errors or their consequences can be controlled. A relationship was established between the specific conditions that evoke these slips and generic classes of condition that are conducive to errors: latent failure types. It is argued that in conditions controlled by latent failures cognitive processes produce not only skill-based errors but also rule- and knowledge-based errors. It is claimed that strategies to increase safety should be directed at these latent failures, rather than at the errors that follow from them. 相似文献
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Two studies examined restrained and unrestrained eaters’ implicit and explicit attitudes toward fatness and thinness. Participants completed measures of implicit and explicit attitudes toward fatness and thinness (Studies 1 and 2), and a measure of the internalization of sociocultural attitudes toward thinness (Study 2). Restrained and unrestrained eaters both had strong implicit negative attitudes toward fatness, but restrained eaters had stronger negative explicit attitudes and beliefs about fatness. Explicit attitudes and beliefs were related to the degree of internalization of sociocultural attitudes, and the internalization of sociocultural attitudes partially mediated the relation between dietary restraint and explicit attitudes. These results suggest that most people are aware of societal standards regarding fatness and thinness and have developed negative implicit attitudes toward fatness, but that only some people (in particular, restrained eaters) have internalized these standards and developed negative explicit attitudes toward fatness that they endorse as personal beliefs. 相似文献
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Goddyn H Callaerts-Vegh Z Stroobants S Dirikx T Vansteenwegen D Hermans D van der Putten H D'Hooge R 《Neurobiology of learning and memory》2008,90(1):103-111
Metabotropic glutamate receptor 7 (mGluR7) is expressed in brain regions implicated in emotional learning and working memory, and previous behavioral experiments indicated contributions of mGluR7 to various complex behaviors. In the present study, we investigated the specific effects of mGluR7 deletion on a variety of conditioning paradigms that model crucial neurocognitive and psychopathological behavioral phenomena. Null-mutant mGluR7−/− mice displayed defects during scheduled appetitive conditioning, acquisition and extinction of appetitive odor conditioning, extinction of response suppression-based conditioned emotional responding (CER), acquisition of discriminative CER, and contextual fear conditioning. mGluR7−/− animals were slower to acquire the association between a conditioned stimulus and a positive or negative reinforcer, but eventually reached similar performance levels to their wildtype littermates. Notably, extinction learning of conditioned responses was slower in mGluR7−/− compared to wildtype animals. The observed delays in the acquisition of complicated stimulus associations across conditioning procedures may suggest a critical role for mGluR7 in neurocognitive functions and psychopathology. 相似文献