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21.
John Drury Clifford Stott Roger Ball Stephen Reicher Fergus Neville Linda Bell Mikey Biddlestone Sanjeedah Choudhury Max Lovell Caoimhe Ryan 《European journal of social psychology》2020,50(3):646-661
Previous research has shown that riots spread across multiple locations, but has not explained underlying psychological processes. We examined rioting in three locations during the August 2011 disorders in England to test a social identity model of riot diffusion. We triangulated multiple sources to construct a narrative of events; and we analysed interviews with 68 participants to examine experiences. In line with the model, we found evidence for two pathways of influence: “cognitive” and “strategic”. For some participants, previous rioting was highly self-relevant, and shared identity was the basis of their subsequent involvement. For others, previous rioting was empowering because it demonstrated the vulnerability of a common enemy (the police). In each location, interaction dynamics mediated the link between initial perceptions and collective action. The utility of this social identity approach is that it is able to account for both the boundaries and the sequence of urban riot diffusion. 相似文献
22.
In an exogenous cueing task repeating a non-spatial feature can benefit performance if the feature is task-relevant to a discrimination response. Previous studies reporting this effect have used complex displays. In the current study, we look at the generalizability of this effect, by extending it to a simple exogenous cueing paradigm in which the cue and target displays each consist of single-object onsets. We also investigate the influence of task-relevant and irrelevant features independently within the same experiment. Consistent with previous studies, we find non-spatial feature repetition benefits in all three experiments. Importantly, and unlike previous studies, we find that the most salient, rather than the task-relevant, feature drives the non-spatial feature repetition benefit. Furthermore, in addition to the previously observed non-spatial feature repetition benefits, we also found a spatially specific feature repetition benefit. We argue that these new findings are consistent with habituation accounts of attentional cueing effects. 相似文献
23.
The problem studied in respect to politico-economic turmoil in an uneasy world centers around conflicts in the Arab world and between Islam and the West. In this respect, the Arab political economy is deeply embroiled in a quagmire of complex factors that have deepened and are confounded by Western political, strategic, and economic interests in the region. To study the topic of the politico-economic future of the Arab world is to delve into the study of complex factors. The present scenario of war, dissensions, power conflict, and Western belligerence with elitist self interest in the region is an example of a more permanent representation of the complexity of power, Western belligerence, regional interests, and religious conflicts. With respect to the political economy of conflict and conflict resolution concerning the West there is the uneasy alliance that has been unjustifiably established between the Arab world and the West. The conflict in this case rages around the spectre of political power and governance within which the cultural, religious, and economic forces tie in to generate the global political economic disorder. Conflict resolution in this arena requires an understanding based on acceptance of epistemological perspectives that wrap up the diverse oppositional factors into a discursive and consensual learning global social contract. This article studies this case of Arab political economy as a study of conflict and conflict resolution between contending forces and reconstructive politico-economic possibilities between the Arab world and the West and between Islam, the Arab world, and Occidentalism. 相似文献
24.
Perovskite manganite nanoparticles with the chemical formula La0.67Sr0.33Mn1?xZnxO3 (x = 0, 0.1 and 0.2) were prepared by the sol–gel process and the influence of Zn substitution on their microstructural and magnetic properties studied in detail. X-ray diffractometry (XRD), scanning electron microscopy (SEM) and transmission electron microscopy (TEM) were employed for crystal structure determination and microstructural analysis. The results of XRD analysis confirmed the polycrystalline nature and rhombohedral crystal structure with space group R(-3c) for all compositions. SEM micrographs of the samples revealed an agglomeration/well-connected appearance of the particles. The composition and uniform distribution of all the elements were established by energy-dispersive spectroscopy. TEM images clearly confirmed an almost spherical shape of the nanoparticles with an average particle size of about 11, 14 and 13 nm for the 0, 10 and 20% Zn-doped samples, respectively. The magnetic behaviour of the nanoparticles was studied at room temperature with a vibrating sample magnetometer (VSM) up to a field of 1.8 Tesla. These measurements established a superparamagnetic nature with a variation in the saturation magnetization (Ms) with Zn content. 相似文献
25.
Structured perceptual arrays and the modulation of Fitts's law: examining saccadic eye movements 总被引:1,自引:0,他引:1
On the basis of recent observations of a modulation of Fitts's law for manual pointing movements in structured visual arrays (J. J. Adam, R. Mol, J. Pratt, & M. H. Fischer, 2006; J. Pratt, J. J. Adam, & M. H. Fischer, 2007), the authors examined whether a similar modulation occurs for saccadic eye movements. Healthy participants (N = 19) made horizontal saccades to targets that appeared randomly in 1 of 4 positions, either on an empty background or within 1 of 4 placeholder boxes. Whereas in previous studies, placeholders caused a decrease in movement time (MT) without the normal decrease in movement accuracy predicted by Fitts's law, placeholders in the present experiment increased saccadic accuracy (decreased endpoint variability) without an increase in MT. The present results extend the findings of J. J. Adam et al. of a modulation of Fitts's law from the temporal domain to the spatial domain and from manual movements to eye movements. 相似文献
26.
The purpose of this study was to investigate individual differences in sustained attention and task performance with toddlers. Participants were 61 17–24‐month old toddlers. Indices of sustained attention (duration of attention and frequency of off‐task glances) were assessed during two 4 min problem solving tasks, and then related to problem solving and the mental scale of the Bayley scales of infant development‐II (BSID‐II). As expected, toddlers who attended to tasks for longer periods of time were more successful at problem solving, and had higher scores on the BSID‐II than toddlers who attended for shorter periods of time. In addition, older toddlers had longer attention spans, more frequent off‐task glances, and were more successful at problem solving than younger toddlers. Interestingly, toddlers with more frequent off‐task glances had longer attention spans, were more successful at problem solving, and had higher BSID‐II scores than peers with fewer off‐task glances. These findings suggest that although behavioural indices can be used to identify sustained attention, the relationship between behaviours thought to capture distractibility and attention is more complex than had been previously assumed. Results are discussed in the context of current theories of infant attention and cognitive performance. Copyright © 2000 John Wiley & Sons, Ltd. 相似文献
27.
Nafay Choudhury 《宗教、国家与社会》2017,45(2):120-140
This paper focuses on the operation of madrasas in Afghanistan. While numerous projects, initiatives and studies have focused on education generally in Afghanistan, considerably less attention has been directed towards madrasas specifically. Part of the reason can be attributed to the unclear role they play in the wider efforts to provide education across the country and the difficulty of formally including them within the nation-building project. The claim of this paper is that madrasas in Afghanistan are by and large localised and community-driven. The localised nature of Afghan madrasas can be understood as the product of the political tensions throughout the country’s history between a state marked by tenuous authority and dispersed communities closely observant of unwelcome state interference. Moreover, the government lacks the resources and reach to provide educational services in many rural areas, thereby tacitly relying on localised madrasa to provide a base level of education to much of the population. Understanding the entanglements between education, politics and authority is crucial for appreciating the unique space that madrasas inhabit within the country. 相似文献
28.
The development of action representation during adolescence was investigated using a visually guided pointing motor task (VGPT) to test motor imagery. Forty adolescents (24 males; mean age 13.1 years) and 33 adults (15 males; mean age 27.5 years) were instructed to both execute and imagine hand movements from a starting point to a target of varying size. Reaction time (RT) was measured for both Execution (E) and Imagery (I) conditions. There is typically a close association between time taken to execute and image actions in adults because action execution and action simulation rely on overlapping neural circuitry. Further, representations of actions are governed by the same speed-accuracy trade-off as real actions, as expressed by Fitts’ Law. In the current study, performance on the VGPT in both adolescents and adults conformed to Fitts’ Law in E and I conditions. However, the strength of association between E and I significantly increased with age, reflecting a refinement in action representation between adolescence and adulthood. 相似文献
29.
The evolving normative dimensions of ‘riot’: Towards an elaborated social identity explanation 下载免费PDF全文
Clifford Stott Roger Ball John Drury Fergus Neville Stephen Reicher Andrea Boardman Sanjeedah Choudhury 《European journal of social psychology》2018,48(6):834-849
The question of how normative form changes during a riot, and thus how collective behaviour spreads to different targets and locations, has been neglected in previous research, despite its theoretical and practical importance. We begin to address this limitation through a detailed analysis of the rioting in the London borough of Haringey in 2011. A triangulated analysis of multiple sources of data (including police reports, media accounts, and videos) finds a pattern of behaviour shifting from collective attacks on police targets to looting. A thematic analysis of 41 interview accounts with participants gathered shortly after the events suggests that a shared anti‐police identity allowed local postcode rivalries to be overcome, forming the basis of empowered action not only against the police but to address more long‐standing grievances and desires. It is argued that collective psychological empowerment operated in a ‘positive feedback loop’, whereby one form of collective self‐objectification (and perceived inability of police to respond) formed the basis of further action. This analysis of the development of new targets in an empowered crowd both confirms and extends the elaborated social identity model as an explanation for conflictual intergroup dynamics. 相似文献
30.
Kayrouz Rony Karin Eyal Ghanem Carawan Choudhury Nafisa Malas Ahmad 《Journal of child and family studies》2022,31(10):2837-2848
Journal of Child and Family Studies - This study explores the risk of developing clinically significant social, emotional, and behavioural problems among Muslim adolescents living in Australia... 相似文献