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161.
Numerous studies have shown that repetition of search-relevant attributes facilitates visual search performance. For example, Maljkovic and Nakayama (1994) showed that when observers search for a target defined by its color and report its shape, repetition of the target color speeds search, an effect known as priming of pop-out. While intertrial feature priming in search was initially thought to affect perceptual processes, the idea that it also affects postselection stages of processing is increasingly acknowledged. However, because in previous studies repetition of the motor response has typically been confounded with repetition of the response feature, it is not clear what mechanisms underlie the postselection effect of intertrial priming. In the present study, we dissociated the two repetition types. The results showed that repetition of the target-defining attribute from the previous trial affects selection of the motor response but not discrimination of the response attribute. The implications for current accounts of intertrial priming are discussed. 相似文献
162.
Anxiety has been associated with enhanced unconscious processing of threat and attentional biases towards threat. Here, we focused on the phenomenology of perception in anxiety and examined whether threat-related material more readily enters anxious than non-anxious individuals' awareness. In six experiments, we compared the stimulus exposures required for each anxiety group to become objectively or subjectively aware of masked facial stimuli varying in emotional expression. Crucially, target emotion was task irrelevant. We found that high trait-anxiety individuals required less sensory evidence (shorter stimulus exposure times) to become aware of the face targets. This anxiety-based difference was observed for fearful faces in all experiments, but with non-threat faces, it emerged only when these were presented among threatening faces. Our findings suggest a prominent role for affective context in high-anxiety individuals' conscious perception of visual stimuli. Possible mechanisms underlying the influence of context in lowering awareness thresholds in anxious individuals are discussed. 相似文献
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Dominique De Jaeger Luc Proteau 《The Quarterly Journal of Experimental Psychology Section A: Human Experimental Psychology》2003,56(4):621-640
The goal of the present study was to determine the relative efficacy of verbal and auditory knowledge of results for promoting learning of a new constrained relative timing pattern. In a series of four experiments we compared the efficiency of verbal knowledge of results to that of auditory knowledge of results. The results of all four experiments revealed that verbal knowledge of result is a very effective source of information to promote learning of a new imposed relative timing pattern. Auditory knowledge of results favoured learning of a new relative timing pattern in a very limited set of circumstances. In the present study, this was only the case when movement velocity remained constant from one segment of the task to the next and if it resulted in an unfamiliar temporal pattern. The results of all four experiments also provided evidence that movement parameterization and relative timing are independent processes that can be developed in parallel. 相似文献
166.
Adam Rutland Lindsey Cameron Philipp Jugert Dennis Nigbur Rupert Brown Charles Watters Rosa Hossain Anick Landau Dominique Le Touze 《The British journal of developmental psychology》2012,30(2):283-302
This research examined whether peer relationships amongst ethnic minority status children reflect the social groups to which children belong and the degree to which they identify with these groups. A longitudinal study was conducted to investigate the influence of group identities (i.e., ethnic and national) on children's perceived peer acceptance and preference for same‐ethnic friendships. Measures of ethnic and English identification, perceived peer acceptance, and friendship choice were administered to 207 south‐Asian English children, aged between 5 and 11, at two time points 6 months apart. In line with predictions, longitudinal analysis showed that bicultural identification (i.e., higher ethnic and English identity) was related to higher perceived peer acceptance and less preference for same‐ethnic friendships. Importantly, as hypothesized, this finding was limited to the older children with more advanced social‐cognitive abilities. The results suggest that older children who adopted a bicultural identity were able to strategically ‘flag’ their multiple group identities, within their multicultural peer groups, to obtain acceptance amongst the maximum number of peers and show less preference for same‐ethnic friendships. This study extends previous peer relations research, which has typically focused on individual social deficits or classroom norms, by showing that group identities influence peer relationships amongst ethnic minority status children. 相似文献
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Dominique Martin 《Psychologie appliquee》1991,40(4):365-379
L'auteur examine les raisons des résistances induites par le changement technique en insistant sur la dévalorisation du statut des personnes touchées. Puis il présente la tentative de formalisation des organisations par l'informatique centralisée avant de montrer que l'acceptation de l'innovation passe par une négociation ménageant les objectifs défendus par les utilisateurs. Mais l'exécutant peut aussi s'approprier la technique et l'exploiter pour développer une stratégie de pouvoir. Des exemples sont pris dans des domaines variés: industrie, enseignement, administration, politique, agriculture, secteur médical.
This article examines the reasons of resistances caused by technical change with a special emphasis on status devaluation of persons concerned. The author continues with a discussion of management's attempt to control the work process in introducing centralized computer-based information systems, before arguing that innovation acceptance calls for a negotiation saving user's aims. But workers can also appropriate the technology and exploit it to develop a power strategy. Examples are chosen in a variety of sectors: industry, teaching, administration, politics, agriculture, medicine. 相似文献
This article examines the reasons of resistances caused by technical change with a special emphasis on status devaluation of persons concerned. The author continues with a discussion of management's attempt to control the work process in introducing centralized computer-based information systems, before arguing that innovation acceptance calls for a negotiation saving user's aims. But workers can also appropriate the technology and exploit it to develop a power strategy. Examples are chosen in a variety of sectors: industry, teaching, administration, politics, agriculture, medicine. 相似文献
169.
Changing Rates of Suicide Ideation and Attempts Among Inuit Youth: A Gender‐Based Analysis of Risk and Protective Factors
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Sarah L. Fraser PhD Dominique Geoffroy MA Eduardo Chachamovich MD PhD Laurence J. Kirmayer MD 《Suicide & life-threatening behavior》2015,45(2):141-156
Inuit in Canada currently suffer from one of the highest rates of suicide in the world. The objective of this study was to explore the prevalence of suicide ideations and attempts among 15–24 year olds living in Nunavik, Québec, and to explore risk and protective factors of suicide attempts as a function of gender. A cross‐sectional survey was conducted in 2004 across Nunavik. Univariate and multivariate logistic regressions were conducted. A total of 22% of young males and 39% of females adults reported past suicidal attempts. Gender differences were observed in relation to associated risk and protective factors as well as degree of exposure to risk factors. Suicide prevention must include alcohol and drug prevention programs and rehabilitation services, interventions to reduce physical and sexual violence and their long‐term impacts on Inuit youth, as well as exposure to culturally meaningful activities. 相似文献
170.