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211.
成瘾可分为物质成瘾和行为成瘾, 两类成瘾人群在跨期选择上都表现出高时间折扣率的缺陷, 但也有各自的特异性特征。成瘾人群跨期选择缺陷的神经基础主要集中在评估网络(腹内侧前额叶、纹状体、后扣带皮层等)、认知控制网络(前额叶皮层、前扣带皮层等)和预期想象网络(海马、杏仁核等); 可利用心理训练来改善成瘾人群跨期选择缺陷, 其干预方法包括工作记忆训练、预期想象训练、金钱管理指导等。未来研究应该从成瘾者跨期选择缺陷的认知机制、3个神经网络系统的交互作用机理、行为遗传学以及开发有效的干预方法等方面展开大量研究。 相似文献
212.
颜色词与颜色认知的关系是语言影响认知的重要领域.不同民族之间存在着语言和文化的差异.对于颜色词与颜色认知的关系,一直就存在着普遍进化理论和语言相对论的争论.既往研究通过哲学思辨、命名和计算、颜色分类、颜色记忆和颜色搜索等多种范式对颜色词与颜色认知的关系进行了卓有成效的探讨,使该领域的研究呈现出蓬勃发展的局面. 相似文献
213.
Haijiang Li Virgil Zeigler-HillJunlong Luo Juan Yang Qinglin Zhang 《Journal of research in personality》2012,46(5):459-464
Individuals with low self-esteem have been shown to exhibit an attentional bias for social rejection cues. The present study investigated whether individuals with low self-esteem would demonstrate greater reactivity to rejection-related stimuli during an attention shifting task than was exhibited by those with high self-esteem. Individuals with low self-esteem showed higher amplitude event-related potentials (ERPs) in response to rejection cues than was observed for those with high self-esteem. These results suggest that individuals with low self-esteem allocate more attentional resources to rejection cues than those with high self-esteem. Discussion will focus on the implications of these findings for understanding the connection between low self-esteem and social rejection. 相似文献
214.
215.
Juan Manuel Falomir‐Pichastor Daniel Muoz‐Rojas Federica Invernizzi Gabriel Mugny 《European journal of social psychology》2004,34(2):135-153
Within the framework of an intergroup relations paradigm, three studies analysed the role of in‐group threat in intergroup discrimination and the influence of in‐group norms on intergroup discrimination. The first study showed that perceived socio‐economic threat underlies Swiss nationals' prejudice and discrimination toward foreigners in Switzerland. The second and third studies experimentally tested the hypotheses, first, that variations in perception of in‐group threat will produce change in initial discrimination, and, second, that the influence of an in‐group norm (pro‐ vs. anti‐ discriminatory) is moderated by the perception of in‐group threat. In support of these predictions, results of both studies indicated that discrimination was reduced when perceived in‐group threat was low. However, the anti‐discriminatory in‐group norm reduced discrimination only when perceived in‐group threat was low. No influence was observed for the pro‐discriminatory in‐group norm. Copyright © 2004 John Wiley & Sons, Ltd. 相似文献
216.
In this article, normative data on the familiarity and difficulty of 196 single-solution Spanish word fragments are presented.
The database includes the following indices: difficulty, familiarity, frequency, number of meanings, number of letters given
in the fragment, first and/or last letters given, and ratio of letters to blanks. A factor analysis was performed on difficulty,
and two factors were obtained. Frequency, familiarity, and number of meanings loaded highly on the first factor, which we
consider to measure lexical processes, whereas number of letters in the fragment, first and/or last letters given, and ratio
of letters to blanks loaded highly on the second factor, which we judge to be determined by perceptual information. Regression
analyses using factor scores as predictors showed that both factors accounted for a significant part of the completion probability
scores. The full set of these norms may be downloaded from the Psychonomic Society Web archive atwww.psychonomic.org/archive/. 相似文献
217.
以北京市1018名流动儿童和447名城市儿童为调查对象,采用家庭生活环境调查问卷、家庭功能问卷、学生多维生活领域满意度量表和学生总体生活满意度量表,考察流动儿童家庭环境的特点及其对生活满意度的影响。结果表明:(1)流动儿童的家庭经济状况和家庭功能均显著差于城市儿童。(2)父亲从事体力类工作显著负向预测流动儿童的环境满意度;家庭生活指数显著正向预测流动儿童的家庭、环境满意度及总体生活满意度;家庭居住的社区环境显著正向预测流动儿童的家庭和环境满意度。(3)家庭亲密度显著正向预测流动儿童的家庭、环境满意度和总体生活满意度,家庭的适应性显著正向预测其家庭满意度。 相似文献
218.
采用S-P法检测17例HT患者甲状腺组织切除标本和9例正常甲状腺组织标本中ES、iNOS及bFGF的表达并分析其之间的相关性,以探讨三者在HT发生发展中的作用.结果HT组中ES、iNOS及bFGF的表达程度均明显高于正常组(P均<0.05),其中ES与bFGF表达无显著相关性(P>0.05),ES与iNOS、bFGF与iNOS的表达均呈显著正相关(r=0.531,r=0.723,P均<0.05).结论为在HT中,高表达的ES、iNOS及bFGF在其发生和发展中可能具有重要作用,为研究其病理生理变化和发病机理提供了理论依据. 相似文献
219.
轻度认知损伤(Mild cognitive impairment,MCI)是介于正常老化与痴呆之间的过渡阶段,表现为与年龄和教育程度不相称的认知功能减退。本文回顾了近期有关MCI语义记忆的研究,分析比较了各研究的实验任务及结果,得出MCI患者存在一定程度的由多种原因造成的语义记忆损伤,语义记忆测验对MCI的早期筛查和转归预测有重要作用。最后指出将来的研究需要将包括语义记忆成分在内的多种认知测验相结合,以便及早发现有可能发展为痴呆的危险个体并开展相应干预。 相似文献
220.
Determinants of Flu Vaccination among Nurses: The Effects of Group Identification and Professional Responsibility 总被引:1,自引:0,他引:1
Juan M. Falomir-Pichastor Letizia Toscani Sophie Huyghues Despointes 《Psychologie appliquee》2009,58(1):42-58
Five hundred and thirty-one nurses completed a questionnaire assessing knowledge about the flu and flu vaccination, professional group identification, perception of the flu vaccination as a professional duty, previous year's vaccination status, intention to receive vaccination in the following year, and the extent to which motivation to accept vaccination is primarily for self-protection or for patient protection. Results showed that knowledge about the flu and flu vaccination constitutes a major reason for rejecting immunisation. Group identification also constitutes an independent predictor of vaccination. Furthermore, the effect of identification on willingness to receive the vaccination was partially mediated by perceived professional responsibility: the more nurses identified with their group, the more they perceived vaccination as a professional duty and, as a consequence, the more likely that they (a) had been vaccinated the previous year, (b) intended to be vaccinated in the following year, and (c) were motivated to be vaccinated for patient protection (but not for self-protection). 相似文献