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Visual attention can be configured for specific stimulus features (feature search mode) or it can be non-specifically set for salient pop-outs (singleton detection mode). Additionally, monetary rewards have been shown to bias attention toward specific features, but it is unknown whether secondary reinforcers (images of US$) can shape global attention via search modes. In a between-group study, we trained participants to value one search mode over the other. In a testing phase, a salient distractor captured the attention of the value-singleton group; however, the value feature group was completely unaffected. This suggests that rewards automatically bias global attention mechanisms and potentially mediate the handoff between stimulus-driven and goal-directed attentional control. 相似文献
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Halper SJ 《Jewish quarterly review (Philadelphia, Pa.)》2011,101(2):189-231
This essay inaugurates the historical study of the modern homosexual Jewish experience before Stonewall. I begin with a historiographic introduction to the emerging subfield of gay Jewish history. I then turn to reintroduce Jiri Langer, a homosexual and Hasidic writer affiliated with the interwar "Prague circle" (and friend of Franz Kafka and Max Brod) into the purview of modern Jewish Studies. I take up two questions: first, how Langer reconciled his homosexual and Orthodox religious identity; and second, why Langer"s homosexuality became exigent as a Jewish question at this particular historical moment. In his key text, Die Erotik der Kabbala, Langer engages with the dominant interwar debates on homosexuality, but most directly with the work of Hans Blüher, the major theoretician of the German Wandervogelbewegung. In the course of correcting Blüher's antisemitic claims about Jews and homosexuality, Langer managed to delineate a specifically homosexual Jewish identity by renegotiating the relationship between homosexuality and Judaism and by adumbrating a history of "gay" Jews. I contextualize this long-neglected text within Langer's fascinating biography; the debates in the early homosexual rights movement; the particular cultural features of the "Prague circle" in which Langer wrote; and the dislocation and devastation of Langer's beloved eastern-European Hasidic communities caused by World War I—communities that Langer experienced as deeply homoerotic. 相似文献
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Object-based selection from spatially-invariant representations: evidence from a feature-report task
Attention selects objects as well as locations. When attention selects an object's features, observers identify two features from a single object more accurately than two features from two different objects (object-based effect of attention; e.g., Duncan, Journal of Experimental Psychology: General, 113, 501-517, 1984). Several studies have demonstrated that object-based attention can operate at a late visual processing stage that is independent of objects' spatial information (Awh, Dhaliwal, Christensen, & Matsukura, Psychological Science, 12, 329-334, 2001; Matsukura & Vecera, Psychonomic Bulletin & Review, 16, 529-536, 2009; Vecera, Journal of Experimental Psychology: General, 126, 14-18, 1997; Vecera & Farah, Journal of Experimental Psychology: General, 123, 146-160, 1994). In the present study, we asked two questions regarding this late object-based selection mechanism. In Part I, we investigated how observers' foreknowledge of to-be-reported features allows attention to select objects, as opposed to individual features. Using a feature-report task, a significant object-based effect was observed when to-be-reported features were known in advance but not when this advance knowledge was absent. In Part II, we examined what drives attention to select objects rather than individual features in the absence of observers' foreknowledge of to-be-reported features. Results suggested that, when there was no opportunity for observers to direct their attention to objects that possess to-be-reported features at the time of stimulus presentation, these stimuli must retain strong perceptual cues to establish themselves as separate objects. 相似文献
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Information held in visual working memory (VWM) influences the allocation of attention during visual search, with targets matching the contents of VWM receiving processing benefits over those that do not. Such an effect could arise from multiple mechanisms: First, it is possible that the contents of working memory enhance the perceptual representation of the target. Alternatively, it is possible that when a target is presented among distractor items, the contents of working memory operate postperceptually to reduce uncertainty about the location of the target. In both cases, a match between the contents of VWM and the target should lead to facilitated processing. However, each effect makes distinct predictions regarding set-size manipulations; whereas perceptual enhancement accounts predict processing benefits regardless of set size, uncertainty reduction accounts predict benefits only with set sizes larger than 1, when there is uncertainty regarding the target location. In the present study, in which briefly presented, masked targets were presented in isolation, there was a negligible effect of the information held in VWM on target discrimination. However, in displays containing multiple masked items, information held in VWM strongly affected target discrimination. These results argue that working memory representations act at a postperceptual level to reduce uncertainty during visual search. 相似文献
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Borderline personality disorder (BPD) is characterized by significant interpersonal conflict, however the factors that contribute to violence among this population are not well known. Individuals with BPD and other severe mental illnesses were followed in the community for 30 weeks post-inpatient discharge. Emotion dysregulation data and detailed measures of violence were collected every 10 weeks, along with measures of antisocial characteristics. Latent growth curve analyses were used to depict individual trajectories of emotion dysregulation throughout the course of the study, and the degree to which changes in emotion dysregulation mediated the risk-enhancing effect of BPD on subsequent interpersonal violence was assessed. Results showed that emotion dysregulation is a significant longitudinal mediator of violent behavior among individuals with BPD, and may serve as the primary mechanism that enhances risk for violence among this population. Implications for modifying existing treatment protocols to reduce interpersonal violence in this population are discussed. 相似文献
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Bergman JZ Rentsch JR Small EE Davenport SW Bergman SM 《The Journal of social psychology》2012,152(1):17-42
The present study examined the process of shared leadership in 45 ad hoc decision-making teams. Each team member's leadership behavior (n = 180) was assessed by behaviorally coding videotapes of the teams' discussions. The within-team patterns of leadership behavior were examined using cluster analysis. Results indicated that the likelihood of a team experiencing a full range of leadership behavior increased to the extent that multiple team members shared leadership, and that teams with shared leadership experienced less conflict, greater consensus, and higher intragroup trust and cohesion than teams without shared leadership. This study supports previous findings that shared leadership contributes to overall team functioning, and begins to delineate the extent to which team members may naturally share leadership. 相似文献