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Two habituation experiments were conducted to investigate how 4‐month‐old infants perceive partly occluded shapes. In the first experiment, we presented a simple, partly occluded shape to the infants until habituation was reached. Then we showed either a probable completion (one that would be predicted on the basis of both local and global cues) or an improbable completion. Longer looking times were found for the improbably completed shape (compared to probable and control conditions), suggesting that the probable shape was perceived during partial occlusion. In the second experiment, infants were habituated to more ambiguous partly occluded shapes, where local and global cues would result in different completions. For adults, the percept of these shapes is usually dominated by global influences. However, after habituation the infants looked longer at the globally completed shapes. These results suggest that by the age of 4 months, infants are able to infer the perceptual completion of partly occluded shapes, but for more ambiguous shapes, this completion seems to be dominated by local influences. 相似文献
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Tessa M. L. Kaufman Hae Yeon Lee Aprile D. Benner David S. Yeager 《Journal of research on adolescence》2020,30(3):769-786
The present research examined how school contexts shape the extent to which beliefs about the potential for change (implicit theories) interact with social adversity to predict depressive symptoms. A preregistered multilevel regression analysis using data from 6,237 ninth‐grade adolescents in 25 U.S. high schools showed a three‐way interaction: Implicit theories moderated the associations between victimization and depressive symptoms only in schools with high levels of school‐level victimization, but not in schools with low victimization levels. In high‐victimization schools, adolescents who believed that people cannot change (an entity theory of personality) were more depressed when they were victimized more frequently. Thus, the mental health correlates of adolescents’ implicit theories depend on both personal experiences and the norms in the context. 相似文献
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April Mills Tessa Francis Vivek Shandas Kara Whittaker Jessica K. Graybill 《Urban Ecosystems》2009,12(2):157-175
Urban development has profound impacts on ecological patterns and processes making the scientific information required for
developing environmental ordinances central for mitigating these negative ecological impacts. Washington State requires that
planners use the best available science (BAS) to formulate land use ordinances as part of the state’s Growth Management Act
(GMA). We present empirical findings describing challenges to planners in defining “best available science” and using BAS
to create local ordinances that balance development needs with natural resource protection. We interviewed city and county
planners (and their consultants) in western Washington to determine what they find useful about BAS, whether or not BAS is
applicable to their jurisdictions, and what constraints they experience in reviewing and using BAS to create or update their
land use ordinances. Our results suggest that applying the BAS requirement is particularly difficult in urban areas. Specifically,
planners had difficulty applying results from research conducted in systems dissimilar to their urban landscapes. These challenges
to planners were exacerbated by (1) a lack of resources and (2) political tensions among stakeholders with competing values
in urban settings. We conclude with recommendations for improving the consideration of science in statewide land-use planning. 相似文献
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Tessa Concepcion Clarita Barbosa Juan Carlos Vélez Micah Pepper Asterio Andrade Bizu Gelaye 《Journal of American college health : J of ACH》2013,61(7):441-448
AbstractObjectives: To evaluate whether daytime sleepiness, poor sleep quality, and morningness and eveningness preferences are associated with common mental disorders (CMDs) among college students. Methods: A total of 963 college students completed self-administered questionnaires that collected information about sociodemographic characteristics, sleep quality characteristics, CMDs, and other lifestyle behaviors. Results: The prevalence of CMDs was 24.3% (95% confidence interval [CI] [21.5%, 27.1%]) among all students. Prevalence estimates of both excessive daytime sleepiness and poor sleep quality were higher among females (35.4% and 54.4%) than males (22.0% and 45.8%). Cigarette smoking was statistically significantly and positively associated with having CMDs (p = .034). Excessive daytime sleepiness (odds ratio [OR] = 3.65; 95% CI [2.56, 4.91]) and poor sleep quality (OR = 4.76; 95% CI [3.11, 7.29]) were associated with increased odds of CMDs. Conclusion: Given the adverse health consequences associated with both sleep disorders and CMDs, improving sleep hygiene among college students is imperative to public health. 相似文献
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Katharine R. Parkes 《Work and stress》1994,8(2):110-129
This article reviews the role of individual differences in work stress processes, with particular reference to personality and coping as moderator variables. Vulnerability/resilience and person-environment fit (congruence) models of moderator effects are contrasted and relevant issues of methodology and analysis are outlined. Personality traits (locus of control, hardiness, Type A, optimism, and neuroticism) that act as moderators of stress/strain relations are reviewed; the characteristics and limitations of available measures are described. Associations between personality and coping, inventories for the assessment of coping, and the dimensions of coping behaviour, are then considered. The implications of structural and transactional models of stress for coping assessment are discussed with reference to dispositional versus situational approaches and other psychometric issues. The need for research into coping flexibility and consistency is emphasized. No attempt is made to provide a comprehensive account of empirical research into individual difference moderator effects, but relevant review articles are cited, together with some recent studies. Finally, several areas which would merit further attention (including specificity of moderator effects, conjunctive and disjunctive patterns, and moderation of relations between objective and perceived stressors) are identified. 相似文献
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With the implementation of No Secrets (Department of Health, 2000),the question of how far to specialize in adult protection hasbeen raised for social services departments. Related issuesinclude the extent of specialization within the vulnerable adultclient groups as well as between adult protection specialistsand other workers. This paper draws on an evaluation of therole of the adult protection co-ordinator across two local authoritysocial services departments (the case study) who share adultprotection policies, protocols and procedures but where thespecialist role has only partially been implemented and hasevolved in different ways. It identifies a number of criticalconsiderations for the local implementation of national policy,including the particular model for adult protection specialization,working relationships with district management and care management,decision making and accountability, adult protection case managementand the development of mainstream competence in adult protection. 相似文献
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Popularity among peers might be related to behavior in gradual or non‐gradual ways. In this research, a popularity subgroups approach was used to examine whether some behaviors were associated with only specific levels of popularity. Moreover, observational data in popularity research is valuable yet scarce. This research, therefore, also examined the association between popularity and observed behavior in a cooperative and competitive setting. In total, 182 early adolescents (58.2% girls, Mage = 10.7 years) completed peer nominations and were observed during a cooperative and a competitive task in groups of four. Results show that affective ties increased gradually with increasing popularity, but that relational aggression, bullying and attention‐attracting qualities distinguished popular adolescents from other early adolescents, and victimization distinguished unpopular adolescents from the other early adolescents. Observations showed that high popularity was defined by high levels of negative behavior, prosocial resource control, skillful leadership, and influence, with the effect of popularity on influence being stronger in the cooperative than the competitive setting. Using multiple methods, and taking context into account, a more complete behavioral profile of different levels of popularity is provided. 相似文献
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Colin Murray Parkes 《International Journal of Group Tensions》1999,28(1-2):115-135
People bereaved by AIDS are likely to be in special need of support by reason of the social situations that accompany this type of loss and the risk of infection in the survivors. Problems associated with grief, depression, and the misuse of medicinal and other drugs are common. Special problems arise when the bereaved are partners, spouses, or parents of the deceased. Issues requiring special attention include emotional overload in both clients and counselors, judgmental attitudes, secrecy, anger, guilt, and the vicious circles that easily arise and can perpetuate problems. 相似文献