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141.
本研究采用游戏使用习惯问卷筛选暴力电子游戏玩家和对照组被试各24名,利用线索探测范式,探讨了暴力电子游戏玩家对攻击性图片的注意偏向机制。结果发现:(1)与对照组相比,暴力电子游戏玩家对攻击性图片线索下探测目标诱发的P1潜伏期提前;(2)暴力电子游戏玩家表现出特定的脑电模式:N1潜伏期延长,P2波幅减小,P300波幅降低;(3)线索的有效性效应表现在早期ERP成分(P1)中。结果表明,暴力电子游戏玩家对攻击性图片表现出注意偏向,其脑电模式揭示暴力电子游戏对玩家的认知功能有消极影响。 相似文献
142.
凉山彝族崇拜女性自身的生育魂"格非",并盛行与生育魂有关的各种求育的法事.崇拜女性生育魂,实际上是崇拜女性的生殖能力,凉山彝族崇拜女性生殖能力的目的是祈求能生育出延续家谱、为祖先超度灵魂的儿子来,而这又与男性在社会组织制度中所担任的角色有关. 相似文献
143.
视角对高频汉字识别的影响 总被引:2,自引:0,他引:2
用EyeLinkII型眼动仪为实验设备 ,以汉字与双眼形成的视角为自变量 ,研究了视角对高频汉字识别的影响特点。本实验中的视角分为 7个水平 :2°、4°、7°、1 0°、1 3°、1 6°、1 9° ,通过自编程序 ,计算出固定距离条件中不同视角下汉字的大小 ,呈现在计算机屏幕上 ,要求被试发声识别汉字。通过对反应时、注视时间、注视次数、眼跳时间、眼跳次数、眨眼时间、眨眼次数的分析。结果发现 :不同视角条件下的反应时总体差异不显著 ,反应时随视角的变化曲线为抛物线 ,开口向上 ;汉字识别的最适宜视角为 1 0°~ 1 1°。 相似文献
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145.
Zijun Cai Yanjun Guan Hongyan Li Wei Shi Kun Guo Yi Liu Qinglin Li Xue Han Peng Jiang Zheng Fang Huijuan Hua 《Journal of Vocational Behavior》2015
Basing on career construction theory and self-verification theory, current research examined the mediating and moderating models for the relations among self-esteem, proactive personality, career exploration, future work self and career adaptability. A two-wave survey study was conducted among Chinese university students (N = 305). The results showed that both self-esteem and proactive personality (measured at time 1) positively predicted future work self and career adaptability (measured at time 2), with these relationships mediated by career exploration (measured at time 1). In addition, the results further revealed that the positive effect of self-esteem on career exploration was stronger among students who had a higher level of proactive personality. In support of the hypothesized moderated mediation model, for individuals with a higher level of proactive personality, the indirect effects of self-esteem on future work self and career adaptability through career exploration were stronger. These findings carry implications for research on career construction theory and career counseling practices. 相似文献
146.
广西中小学儿童受欺负现象调查研究 总被引:2,自引:0,他引:2
运用自编问卷在广西5所中小学选取792名中小学儿童进行调查,考察中小学儿童在学校和家庭中受同学、老师和家长欺负的比率及受欺负方式的特点。结果发现:1、中小学中存在普遍的受欺负现象,随着年龄的增长,儿童受欺负的比率呈下降趋势;但受教师和家长欺负到初中后反而呈上升趋势。2、儿童易受同伴的直接言语欺负;男生比女生易受同学直接身体欺负。3、儿童易受家长的直接言语欺负;小学阶段男生比女生易受家长的间接欺负;初中阶段女生比男生易受家长的直接身体欺负。4、教师对儿童较多使用间接欺负和直接身体欺负。小学阶段男生比女生易受教师的直接言语欺负;初中阶段男生比女生易受教师的直接身体欺负。 相似文献
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149.
Pursuing the line of the difference models in IRT (Thissen &; Steinberg, 1986), this article proposed a new cognitive diagnostic model for graded/polytomous data based on the deterministic input, noisy, and gate (Haertel, 1989; Junker &; Sijtsma, 2001), which is named the DINA model for graded data (DINA-GD). We investigated the performance of a full Bayesian estimation of the proposed model. In the simulation, the classification accuracy and item recovery for the DINA-GD model were investigated. The results indicated that the proposed model had acceptable examinees' correct attribute classification rate and item parameter recovery. In addition, a real-data example was used to illustrate the application of this new model with the graded data or polytomously scored items. 相似文献
150.
Fen Luo Xiaoqing Wang Yan Cai Dongbo Tu 《The British journal of mathematical and statistical psychology》2023,76(2):283-311
Computerized adaptive testing for cognitive diagnosis (CD-CAT) needs to be efficient and responsive in real time to meet practical applications' requirements. For high-dimensional data, the number of categories to be recognized in a test grows exponentially as the number of attributes increases, which can easily cause system reaction time to be too long such that it adversely affects the examinees and thus seriously impacts the measurement efficiency. More importantly, the long-time CPU operations and memory usage of item selection in CD-CAT due to intensive computation are impractical and cannot wholly meet practice needs. This paper proposed two new efficient selection strategies (HIA and CEL) for high-dimensional CD-CAT to address this issue by incorporating the max-marginals from the maximum a posteriori query and integrating the ensemble learning approach into the previous efficient selection methods, respectively. The performance of the proposed selection method was compared with the conventional selection method using simulated and real item pools. The results showed that the proposed methods could significantly improve the measurement efficiency with about 1/2–1/200 of the conventional methods' computation time while retaining similar measurement accuracy. With increasing number of attributes and size of the item pool, the computation time advantage of the proposed methods becomes more significant. 相似文献