Improving postswitch performance in the dimensional change card-sorting task: the importance of the switch and of pretraining by redescribing the test cards

The dimensional change card-sorting task (DCCS) is used to assess the executive abilities of young children. Typically, 3-year-olds have difficulty in performing this task. However, the exact nature of this difficulty is still being debated. In the standard DCCS, children need to sort, for example, test cards with a blue flower or a red car into two boxes marked with the target cards. The 3-year-olds commonly have pronounced difficulty in switching from one sorting criterion (e.g., color) to another (e.g., shape). Here two experiments with 3-year-olds showed that making the transition between the sorting criteria more distinct improved performance significantly. This was achieved by taking away the target cards for a brief time period, asking a question irrelevant to the task, and pretraining the children by redescribing the test cards.     

Oculomotor and manual indexes of incidental and intentional spatial sequence learning during middle childhood and adolescence

The goal of this study was to examine incidental and intentional spatial sequence learning during middle childhood and adolescence. We tested four age groups (8-10 years, 11-13 years, 14-17 years, and young adults [18+ years]) on a serial reaction time task and used manual and oculomotor measures to examine incidental sequence learning. Participants were also administered a trial block in which they were explicitly instructed to learn a sequence. Replicating our previous study with adults, oculomotor anticipations and response times showed learning effects similar to those in the manual modality. There were few age-related differences in the sequence learning indexes during incidental learning, but intentional learning yielded differences on all indexes. Results indicate that the search for regularities and the ability to learn a sequence rapidly under incidental conditions are mature by 8 to 10 years of age. In contrast, the ability to learn a sequence intentionally, which requires cognitive resources and strategies, continues to develop through adolescence.     

Positive and negative associations underlying ambivalent attitudes

In two studies, we compared the strength of positive and negative associations of ambivalent attitudes to those of nonambivalent attitudes. In Study 1, results from an implicit association task showed that, in contrast to nonambivalent attitudes, ambivalent attitudes were characterized by strong positive and negative associations. In Study 2 responses to ambivalent attitude objects were faster following a positive as well as following a negative prime, compared to a non-word prime, whereas for neutral attitude objects prime type did not influence response times. Results provide direct evidence for the assumption that both positive and negative associations of ambivalent attitudes are relatively strong. Implications for attitude strength and attitude structure are discussed.     

3～6年级学生及其教师对师生关系知觉的比较研究

采用师生关系学生知觉和教师知觉问卷,分别由508名3~6年级学生及其16名班主任教师对两者之间的关系进行评价,结果表明:(1)教师和学生知觉的师生关系具有相似的结构成分:亲密性、冲突性和反应性;(2)学生知觉到的师生关系与教师知觉到的师生关系特点有显著的不同:相对于教师而言,4~6年级学生知觉到的师生关系更为消极;而3年级学生知觉到的师生关系则更为积极.(3)快速聚类分析的结果表明,教师知觉和学生知觉的师生关系可以聚为两种相同的类型:亲密型和冲突型.教师和学生知觉类型一致的比例为62.5%;不一致类型的比例为37.5%.(4)在师生关系的类型上,三年级学生知觉到的亲密型比例显著高于教师知觉,而冲突型比例则显著低于教师知觉;六年级学生与此相反.     

动物辅助治疗与特殊儿童的身心发展

动物辅助治疗是以动物为媒介,通过人与动物的接触,而使病弱或残疾个体身体状况得到改善或维持;或者使个体的心理状况通过有动物参与的活动,加强与外界环境的互动,进而能适应社会的、一种以目标为导向的干预方法。动物辅助治疗有助于缓解儿童的焦虑,促进儿童社会化过程。尤其是可减少情绪问题、注意缺陷和行为障碍、自闭症及脑瘫儿童的问题行为,并促进他们的发展。     

PTEN、p53和BAG-1在三阴乳腺癌中的表达及意义

为了研究PTEN、p53和BAG-1在三阴乳腺癌中的表达情况及临床病理意义,并讨论三者之间的关系.采用免疫组织化学SP法检测89例三阴乳腺癌中PTEN、p53、BAG-1的表达,其阳性表达率分别为44.9％、47.2％、73.0％,三者的表达均与患者的病理组织学分级、淋巴结转移情况有关(P＜0.05).PTEN的表达与p53、BAG-1表达呈负相关;BAG-1与p53的表达呈正相关,提示三者在三阴乳腺癌中的表达存在一定关联性,临床上联合检测三者可能为TNBC预后评估、患者的个体化治疗提供一定的参考.     

Muslim Governance and the Duty to Protect

In this response to Johnson, Oh reaffirms the scholarly vision of Kelsay and Twiss, elaborates upon Muslim perspectives on human rights, and questions the emphasis on violent humanitarian interventions as part of the Responsibility to Protect mandate. Oh suggests that, in light of the historical relationship between Muslim and non‐Muslim states and the aftermath of the second Iraq War, more consideration be given to the rebuilding of Muslim‐majority societies. Oh also highlights the concept of duty as a religiously based ideal to which governments of Muslim nations ought to be held.     

牟宗三形著说质疑

本文依次从心体是否需要性体保证其客观性,性体能否保证心体的客观性,形著说能否达到预期目的,究竟应该如何看待天道等方面,向牟宗三著名的形著说提出质疑。本文总的结论是,形著说虽有重要的理论意义,但其路子从一开始就没有走对,不仅不能有效解决理论上的难题,而且有叠床架屋之嫌。