Semantic binding,not attentional control,generates coherent global structure in children's narrative memory

Encoding and retrieving global narrative structure influences children's narrative recall. The influence of age and attentional/executive resources on binding processes during sentence list recall was examined in 5- to 6- and 8- to 9-year-old children. Older and younger children showed superior recall of lists, and achieved higher scores on two metrics of chunking; access to different sentences (i.e., number of chunks) and sentence completion (i.e., chunk size), when lists were presented within a coherent global structure. Children's list recall and sentence access, but not their sentence completion scores, were affected by a concurrent self-paced attention-demanding task. Children, unlike adults, engage in active storage of verbal information in thematically related sentence lists. The coherence-advantage effect was stable across age groups and insensitive to the secondary task. Overall, findings imply that semantic binding generates stronger memory representations and superior recall for sentences within a story context than for sentence sets that lack global narrative structure.     

Survival of the partial reinforcement extinction effect after contextual shifts

The effects of contextual shifts on the partial reinforcement extinction effect (PREE) were studied in autoshaping with rats. Experiment 1 established that the two contexts used subsequently were easily discriminable and equally salient. In Experiment 2, independent groups of rats received acquisition training under partial reinforcement (PRF) or continuous reinforcement (CRF). Significant PREEs were observed whether extinction occurred in the same or in a different context. In Experiment 3, after PRF or CRF acquisition training, each group received extinction of the same conditioned stimulus in both the same and different contexts. PREEs were observed under both conditions, although extinction was accelerated after a contextual shift. These results were discussed in relation to the role of mediational states in the PREE.     

美式反恐战略给无辜者带来的道德伤害

恐怖主义是全人类的共同敌人。在美国主导国际社会反恐话语权的宏观背景下,美式反恐战略在美国国内造就了一个放弃“美国价值”的美国;在国际社会,给无数无辜者带来了巨大的道德伤害。其对人类社会伦理秩序破坏所造成的损害尚无法评估。     

考试应付与相关因素的研究

本研究运用测量的方法考察了 1 0 0个大学生考试前后的应付方式以及人格、社会支持等因素对应付方式选择的影响作用。结果发现 ,考试应付与情景变化、人格特点和社会支持等因素有关。其中自尊、外向和低精神质人格特点与解决问题指向应付方式使用相关 ,低掩饰性与悲观人格特点与幻想、发泄、否认的消极应付方式使用相关。社会支持在应付中是一种重要的辅助资源 ,缺乏社会支持资源 ,考试过程中倾向于使用自闭的消极应付方式 ,社会支持资源丰富 ,则倾向于使用寻求社会支持的积极应付方式。     

中国古代堕胎考略

临床住院医师规范化培训是培养高水平专业人才的重要手段,是提高我国医疗水平的重要环节和措施,是一项有关卫生事业发展的重要工作。目前,我国住院医师培训还存在不少问题。在各方面的不断努力和探索下,一定能够使住院医师规范化培新工作做得更好。