Overestimation and contraction biases of depth information stored in working memory depend on spatial configuration

Depth perception is essential for effective interaction with the environment. Although the accuracy of depth perception has been studied extensively, it is unclear how accurate the depth information is stored in working memory. In this study, we investigated the accuracy and systematic biases of depth representation by a delayed estimation task. The memory array consisted of items presented at various stereoscopic depth positions, and the participants were instructed to estimate the depth position of one target item after a retention interval. We examined the effect of spatial configuration by comparing the memory performance in the whole-display condition where non-target memory items were present during retrieval with that in the single-display condition where non-target memory items were absent. In the single-display condition, we found an overestimation bias that the depth estimates were farther than the corresponding depth positions defined by disparity, and a contraction bias that the stored depth positions near the observer were overestimated and those far from the observer were underestimated. The magnitude of these biases increased with the number of to-be-stored items. However, in the whole-display condition, the overestimation bias was corrected and the contraction bias did not increase with the number of to-be-stored items. Our findings suggested that the number of to-be-stored items could affect the accuracy of depth working memory, and its effect depended crucially on whether the information of spatial configuration of memory display was available at the retrieval stage.     

坚持中国化方向是我国伊斯兰教行稳致远的基础——高占福研究员访谈

―、学术研究缘起和经历问:高老师您好,我受《中国穆斯林》杂志委托,很高兴对您进行专访。您是从甘肃临夏走出来的回族学者,故乡是您驻留心间常思常念的一方热土,您在撰文或接受采访时曾多次表达自己浓厚的家乡情怀。有关故乡,您有哪些最值得回忆的往事?故乡对您走上学术研究之路,特别是您早期从事西北穆斯林问题研究产生了哪些重要影响?     

当前大学生基督教组织的发展与应对——以华东Z省H市“P教会”为例

通过运用参与观察法和个案访谈法在H市开展关于大学生基督教组织发展情况的调研,发现大学生基督教组织的组织化程度在逐步提高,有组织的传教活动频繁,传教意愿强烈,社会联系广泛,善于结合大学生特点开展宗教活动。大学生基督教组织的活跃对高校校园管理和人才培养工作造成一定干扰,构成社会稳定的潜在隐患。因此,高校及主管部门需要创新社会治理方法,构建多方联动机制,直面大学生信教问题,通过多种渠道协同加强高校思想政治工作,积极应对大学生基督教组织的不断发展。     

Feature integration is not the whole story of the sequence effects of symbolic cueing

ABSTRACT

Sequential modulations in symbolic cueing tasks have been attributed to complete versus partial repetition/alternation of stimulus features between consecutive trials. This feature-integration hypothesis is questioned by recent findings and further investigated in the present study. In the first two experiments, when the cueing axes switched between trials, only complete alternation of cue directions and target locations existed. Nevertheless, significant sequence effects were still found in this condition, which did not support the feature-integration hypothesis. Furthermore, although sequence effects were still significant when stimulus identities were manipulated in Experiment 3, it was abolished when different cue categories (gaze and arrow) were presented as cues in Experiment 4. The findings suggest that the integration of stimulus features is not the only source of the sequential effect and some higher level cognitive mechanisms, possibly as described in the task-file or task organization hypotheses, are involved in the sequential modulations of symbolic cueing.     

Retracted: Effects of cartoon violence on aggressive thoughts and aggressive behaviors

This article reports on an experiment designed to test whether the cartoon manipulation leads to significant increases in aggressive thoughts and aggressive behaviors among Chinese children (n = 3,000). Results indicated that brief exposure to a violent cartoon triggered higher aggressive thoughts and aggressive behaviors than a nonviolent cartoon. Females displayed higher aggressive thoughts and aggressive behaviors than males in a nonviolent cartoon condition, while males displayed higher aggressive behaviors than females in a violent cartoon condition. Mediation analysis suggested that the effect on aggressive behaviors was mediated by aggressive thoughts. The findings imply that cartoon developers, parents, and teachers should develop cartoons that inhibit children's aggressive thoughts to avoid aggressive behaviors. Females are the key group for the prevention and intervention of aggression in a nonviolent cartoon context, while males are the key group for the prevention and intervention of aggression in a violent cartoon context.     

日本社会传统与日军慰安妇制度

二战时期日军慰安妇制度的建立,与日本社会传统有着密切的联系。日本男性的性放纵、性生活的迷信心理以及日本女性客观上的支持和长期的历史渊源,都促成了慰安妇制度的形成。