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851.
    
The purpose of the present study was to test the effect of attentional distraction on temporal bisection performance in 5‐ and 8‐year‐old children. During a first learning phase, children were trained to discriminate on a temporal bisection task a short standard duration (2 sec) from a long one (8 sec), presented as visual stimuli. Later, in a second testing phase, intermediate durations (3, 4, 5, 6, 7 s), including the standard durations, were presented. Children's task still was to report if it was a short standard duration or a long one. In addition, during the non‐standard duration, a distracter either did or did not appear. Results showed increasing proportions of “it is the long standard duration” (response “long”) with increasing stimulus durations in both distracter and non‐distracter conditions. However, psychophysical functions were flatter in the 5‐year‐olds than in the 8‐year‐olds, revealing their lower sensibility to time. Nevertheless, the 5‐year‐olds' proportion of long responses was higher under the distracter than in the non‐distracter condition. Consequently, the point of subjective equality (PSE), corresponding to the stimulus duration to which the subject produced 50% of responses of “long” was lower under the distracter condition as compared to the non‐distracter condition. Conversely, for the 8‐year‐olds, the PSE was significantly higher in the distracter than in the non‐distracter condition. Five‐year old children overestimated the time in the presence of an attentional distracter, whereas 8‐year olds tended to underestimate it. The leftward shift and the rightward shift of the PSE in the 5‐ and the 8‐year‐olds, respectively, were accounted for by limited‐capacity attention in the five‐year olds.  相似文献   
852.
853.
    
Inman and Baron (1996) found that African Americans and Whites possess prototypes for racist behavior that involve Whites oppressing African Americans. However, prototypical content may be more detailed and specific for African Americans because of differing cultural experiences. In the present experiment, undergraduates read stories about interpersonal encounters representing prototypical and nonprototypical situations. Actor race ambiguity was manipulated by the presence or absence of photographs. As expected, Whites tended to make equal ratings of prejudiced behavior for prototypical and nonprototypical situations. However, African Americans perceived more prejudice in prototypical vignettes than in nonprototypical vignettes. They also perceived stronger prejudicial displays and more dispositional motivation for targets in prototypical vignettes. The results suggest that African Americans have heightened sensitivity to prejudice in specific situations, a factor that may contribute to racial confrontations and misunderstandings.  相似文献   
854.
    
Abstract: On the last page of A Political Treatise Spinoza denies that women are subject to men by convention only. He excludes females from participation in politics on the grounds that they are “by nature … necessarily” (that is, by the logical and causal necessity which are for him equivalent) unequal to men “in strength of mind and intellectual ability”. This claim is examined in relation to four of Spinoza's foundational principles. It is found to be in tension with all four, and with the psychological, social, political and moral deductions Spinoza makes from them, and is moreover an internally weak argument.  相似文献   
855.
    
Previous studies of personality and health have focused mainly on the influence of psychological factors on single diseases such as cancer and coronary heart disease (CHD), thereby neglecting the problem of comorbidity (i.e. the combination of different diseases). The main focus of the present study was the discrimination between single‐ and multiple‐disease conditions on the basis of personality traits. An extensive battery of personality scales implicated in health was administered to a sample of n=5133 individuals of both genders between the ages of 40 and 65. Subjects also reported their health or illness status. A factor analysis of the personality scales yielded five dimensions clearly interpretable as “Emotional Lability”, “Type A Behaviour”, “Behavioural Control”, “Locus of Control over Diseases”, and “Psychoticism”. Hierarchical cluster analyses of the subsample of participants who reported suffering from more than one disease led to eight clusters representing individuals with different combinations of diseases. Generally, there were very few significant differences between healthy and single‐disease participants with regard to personality. However, mean factor scores calculated for “Emotional Lability” were higher across the multiple‐disease groups than in the healthy and single‐disease groups. No other personality factor showed this trend. In general the results reported here show the important role negative affectivity (e.g. Emotional Lability, Neuroticism, Depression) plays in differentiating between single and multiple diseases. Copyright © 2003 John Wiley & Sons, Ltd.  相似文献   
856.
    
Over the past years, important advances in the cognitive–behavioral treatment of social phobia have taken place. There is wide evidence that demonstrates exposure is an effective treatment for social phobia. However, some research has noticed that exposure has limitations in treating this disorder. In clinical practice we find patients who do not achieve marked reductions in anxiety using this technique. One of the mechanisms that can be involved is the use of in‐situation safety behaviors, which patients use to prevent the feared consequences in social situations. The aim of this study is to present a single case study where we compare the improvement achieved using exposure alone versus exposure dropping in‐situation safety behaviors. The social phobic patient improved significantly when exposure was combined with the drop of in‐situation safety behaviors. Copyright © 2003 John Wiley & Sons, Ltd.  相似文献   
857.
Attribution of a false belief is usually taken to indicate that children distinguish between a real world state of affairs and its representation by a subject. But how do they conceive of the properties of such a mental entity? Do they understand that false belief necessarily goes hand in hand with good faith? Our study explores to what extent children conflate false beliefs with lies. Sixty children aged 3 to 8 were presented with an FB situation and then asked whether the character having an FB was lying or not. Results show that up to 6 years, although correctly attributing the FB, children systematically judge the FB statement to be a lie, since it does not correspond to the real world state of affairs. Older children succeed in the lie judgment, invoking the false believer's not knowing the world state. Discussion bears on the relation between false belief and more general epistemic states.  相似文献   
858.
    
Dempster ( Dempster, 1995 ; Dempster & Corkill, 1999 ) proposed that developmental changes in performance on Piagetian tasks could be related to changes in inhibitory efficiency more than to logical development. In this study, the negative priming paradigm was adapted to the class inclusion task in order to investigate the role of inhibition and knowledge levels in the development of class inclusion. Participants were pre‐tested on two inclusion tasks, the standard Piagetian task and Markman's modification task, and assigned to different knowledge levels: empirical, and logical necessity. Children were then tested on a priming version of the class inclusion task. Results showed a negative priming effect, indicating that the irrelevant ‘subclass comparison strategy’ was actively inhibited during the processing of the class inclusion task. This effect was found to vary as a function of knowledge levels, indicating that the need for inhibition was reduced when children had attained logical necessity.  相似文献   
859.
  总被引:1,自引:0,他引:1  
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860.
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