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671.
人们会迅速地对目标人物的面孔线索进行人格特质分析,进而形成对目标的人格第一印象。在这个面孔—人格知觉的过程中,知觉结果会受到知觉对象、知觉者以及两者交互作用的影响。本文基于这三个方面对影响面孔—人格知觉的因素进行了综述和展望,以期更系统、科学地研究与看待面孔—人格知觉,并为人际印象设计与管理等提供理论参考。 相似文献
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Cheryl A. King Qingmei Jiang Ewa K. Czyz David C. R. Kerr 《Journal of abnormal child psychology》2014,42(3):467-477
Clinicians commonly incorporate adolescents’ self-reported suicidal ideation into formulations regarding adolescents’ risk for suicide. Data are limited, however, regarding the extent to which adolescent boys’ and girls’ reports of suicidal ideation have clinically significant predictive validity in terms of subsequent suicidal behavior. This study examined psychiatrically hospitalized adolescent boys’ and girls’ self-reported suicidal ideation as a predictor of suicide attempts during the first year following hospitalization. A total of 354 adolescents (97 boys; 257 girls; ages 13–17 years) hospitalized for acute suicide risk were evaluated at the time of hospitalization as well as 3, 6, and 12 months later. Study measures included the Suicidal Ideation Questionnaire-Junior, Multidimensional Anxiety Scale for Children, Children’s Depression Rating Scale-Revised, Beck Hopelessness Scale, Youth Self-Report, and Personal Experiences Screen Questionnaire. The main study outcome was presence and number of suicide attempt(s) in the year after hospitalization, measured by the Diagnostic Interview Schedule for Children. Results indicated a significant interaction between suicidal ideation, assessed during first week of hospitalization, and gender for the prediction of subsequent suicide attempts. Suicidal ideation was a significant predictor of subsequent suicide attempts for girls, but not boys. Baseline history of multiple suicide attempts was a significant predictor of subsequent suicide attempts across genders. Results support the importance of empirically validating suicide risk assessment strategies separately for adolescent boys and girls. Among adolescent boys who have been hospitalized due to acute suicide risk, low levels of self-reported suicidal ideation may not be indicative of low risk for suicidal behavior following hospitalization. 相似文献
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以居住在北京小月河地区的304名“蚁族”为被试,采用公正世界信念问卷、积极消极情感问卷和生活满意度问卷,考察了一般公正世界信念、个人公正世界信念以及幸福感之间的关系,结果表明:(1)“蚁族”的生活满意度偏低,但其情绪状态仍然乐观,积极情感体验较高,且具有较高水平的公正世界信念;(2)公正世界信念对幸福感有显著的正向预测作用,公正世界信念水平越高的“蚁族”越幸福;(3)个人公正世界信念在一般公正世界信念和幸福感间起中介作用,即越相信世界是公正的“蚁族”更倾向于相信自己已经或即将受到的对待是公正的,最终提升幸福感。 相似文献
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Signaling Mechanisms Mediating BDNF Modulation of Synaptic Plasticity in the Hippocampus 总被引:8,自引:0,他引:8 下载免费PDF全文
Wolfram A. Gottschalk Hao Jiang Nicole Tartaglia Linyin Feng Alexander Figurov Bai Lu 《Learning & memory (Cold Spring Harbor, N.Y.)》1999,6(3):243-256
Although recent studies indicate that brain-derived neurotrophic factor (BDNF) plays an important role in hippocampal synaptic plasticity, the underlying signaling mechanisms remain largely unknown. Here, we have characterized the signaling events that mediate the BDNF modulation of high-frequency synaptic transmission. Mitogen-associated protein kinase (MAPK), phosphotidylinositol-3 kinase (PI3K), and phospholipase C-γ (PLC-γ) are the three signaling pathways known to mediate neurotrophin signaling in other systems. In neonatal hippocampal slices, application of BDNF rapidly activated MAPK and PI3K but not PLC-γ. BDNF greatly attenuated synaptic fatigue at CA1 synapses induced by a train of high-frequency, tetanic stimulation (HFS). Inhibition of the MAPK and PI3K, but not PLC-γ, prevented the BDNF modulation of high-frequency synaptic transmission. Neurotrophin-3 (NT-3), a close relative of BDNF, did not activate MAPK or PI3K and had no effect on synaptic fatigue in the neonatal hippocampus. Neither forskolin, which activated MAPK but not PI3 kinase, nor ciliary neurotrophic factor (CNTF), which activated PI3K but not MAPK, affected HFS-induced synaptic fatigue. Treatment of the slices with forskolin together with CNTF still had no effect on synaptic fatigue. Thus, although the activation of MAPK and PI3K is required, the two together are not sufficient to mediate the BDNF effect. Inhibition of new protein synthesis by anisomycin or cycloheximide did not prevent the BDNF effect. These data suggest that BDNF modulation of high-frequency transmission is independent of protein synthesis but requires MAPK and PI3K and yet another signaling pathway to act together in the hippocampus. 相似文献
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上海市大中学生的心理健康及其与体育锻炼的关系 总被引:79,自引:1,他引:78
本研究利用《简式心境状态剖面图》(POMS)中国修订版和《运动力量等级量表—3》(PARS—3),对上海市大中学生的心理健康及其与体育锻炼的关系进行了考察。结果表明:①有较高比例的学生存在着不同程度的紧张、愤怒、疲劳、抑郁和慌乱,以及较低的精力和自尊感;②体育锻炼能有效地降低紧张、愤怒、疲劳、抑郁、慌乱,提高和自尊感,③中等到较大的运动量具有更好地心理健康效应;④体育乐趣与运动坚持性具有密切的关系。 相似文献
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