Development of a vocabulary of object shapes in a child with a very-early-acquired visual agnosia: A unique case

We report a longitudinal study of an exceptional child (S.R.) whose early-acquired visual agnosia, following encephalitis at 8 weeks of age, did not prevent her from learning to construct an increasing vocabulary of visual object forms (drawn from different categories), albeit slowly. S.R. had problems perceiving subtle differences in shape; she was unable to segment local letters within global displays; and she would bring complex scenes close to her eyes: a symptom suggestive of an attempt to reduce visual crowding. Investigations revealed a robust ability to use the gestalt grouping factors of proximity and collinearity to detect fragmented forms in noisy backgrounds, compared with a very weak ability to segment fragmented forms on the basis of contrasts of shape. When contrasts in spatial grouping and shape were pitted against each other, shape made little contribution, consistent with problems in perceiving complex scenes, but when shape contrast was varied, and spatial grouping was held constant, S.R. showed the same hierarchy of difficulty as the controls, although her responses were slowed. This is the first report of a child's visual–perceptual development following very early neurological impairments to the visual cortex. Her ability to learn to perceive visual shape following damage at a rudimentary stage of perceptual development contrasts starkly with the loss of such ability in childhood cases of acquired visual agnosia that follow damage to the established perceptual system. Clearly, there is a critical period during which neurological damage to the highly active, early developing visual–perceptual system does not prevent but only impairs further learning.     

围手术期医疗质量管理策略

围手术期是手术患者在医院诊疗过程中的最重要时期,隐患多、风险大,历来是医疗质量管理的重点和难点。本文介绍了中国医科大学附属盛京医院加强围手术期管理的措施,只有加强对手术全程的监管,促进围手术期抗菌药物的合理使用,提供术后规范化的护理,加强质量教育和培训,才能确保围手术期的医疗质量。     

民主建设的逻辑、次序与策略:延安时期毛泽东的思考与实践

延安时期毛泽东提出了大众民主（人民民主）的建设目标,并对于这种民主建设的逻辑、次序和策略等相关问题做出了努力的探索。延安时期毛泽东领导的边区民主建设是中国本土的一次民主操练,对于当前中国民主政治关系的建设具有重要借鉴意义。     

第二语言获得关键期研究进展

语言获得的关键期是发展心理学的一个重要且有争议的问题。近二十多年来．国外学者对第二语言获得年龄与第二语言的学习速度,第二语言的获得年龄与最后达到水平,第二语言的获得年龄与第二语言的大脑皮质表征和加工的关系等问题进行探讨,得到了复杂的结果。该领域的研究有待进一步控制与年龄相关的变量和认知变量,并将行为和脑功能的研究结合起来．更深入地探讨这一问题。     

Habitual reappraisal in context: peer victimisation moderates its association with physiological reactivity to social stress

Although the emotion regulation strategy of reappraisal has been associated with adaptive outcomes, there is a growing evidence that it may not be adaptive in all contexts. In the present study, adolescents reported their use of habitual reappraisal and their experiences with peer victimisation, a chronic stressor that is associated with reduced well-being in this population. We examined how these variables predicted physiological reactivity (vagal withdrawal and changes in pre-ejection period) during a social stressor (i.e., Trier Social Stress Task). In line with previous research, at high levels of victimisation, habitual reappraisal predicted adaptive physiological reactivity (i.e., greater vagal withdrawal). Conversely, at low levels of victimisation, habitual reappraisal predicted maladaptive physiological reactivity (i.e., blunted vagal withdrawal). These findings were specific to parasympathetic reactivity. They suggest that habitual reappraisal may exert different effects on parasympathetic reactivity depending on the presence of stressors, and highlight the importance of examining the role of contextual factors in determining the adaptiveness of emotion regulation strategies.     

Influence of obstetrical events on satisfaction and anxiety during childbirth: a prospective longitudinal study

The aim of this study was to investigate the feelings of anxiety and satisfaction among 79 primiparas who had uncomplicated pregnancies, at the time of hospital admission and after birth, considering the mode of delivery, analgesia, and pain levels. Questionnaires were completed at admission to the hospital and two months after delivery, using the State-Trait Anxiety Inventory (STAI) state scale and the Labour Agentry Scale. The mean (SD) STAI state score was higher at admission (36.7 (10.7)) than 4 months after childbirth (32.1 (9.7)) (paired Student’s t-test, t = 2.93; df = 78; p = .004). However, the postnatal anxiety was not associated with the mode of delivery, epidural or pain. Regarding the satisfaction with the expectations of control during childbirth, the mean (SD) score was higher before childbirth (166.0 (21.8)) than after (157.5 (33.5)) (paired Student’s t-test, t = ?2.28; df = 77; p = .03). The satisfaction with the childbirth experience was significantly associated with the expectations of childbirth and the mode of delivery, but not with analgesia or pain. The postnatal anxiety was associated with physical health, pain and the Edinburgh Postnatal Depression Scale score during the postpartum period. It is important to consider the temporality of perinatal anxiety in order to understand its causes. Our results indicate that the experience of childbirth was predicted in this sample by the antenatal expectations and delivery outcomes.     

融通以达变:论钱穆先生对《易传》的诠释

钱穆先生在<易传>的研究上,先从文献入手,发表<论十翼非孔子作>以厘清孔孟旧儒与战国时代新儒的不同;其后发表<易传与小戴礼记中之宇宙论>讲述代表战国新儒思想的<易传>,虽然与孔孟旧儒不同,但仅限于天体宇宙论的建构方面,盖因此领域为道家所擅.<易传>作者吸收道家之长,融通道家宇宙论,转而建立属于儒家的宇宙论,这是值得肯定的转变.正如钱先生文中一再致意的:<易传>虽吸收道家宇宙论的思想,但并未背弃儒家人生论的精髓,所以在吸收过程中皆予以转化,换句话说,便是将老庄自然宇宙观变成儒家德性的宇宙观,以求合于传统儒家的人生哲学.     

老年患者的外科治疗决策及围手术期处理

泌尿外科老年患者多,老年患者必然手术并发症多,手术死亡率高。虽然现在泌尿外科近70％的手术已进入了微创时代,手术时间大幅缩减,但是老年患者的临床决策仍常常是个非常纠结的问题,手术要达到什么目的？何时要做适当的放弃？除了充分的围手术期准备,医生要敢于承担,家属要充分理解和合作。     

进化心理学关于反乱伦情感的研究

本文评介了利伯曼等进化心理学者对人类反乱伦情感的研究。他们把人类乱伦退避机制纳入人类亲属识别机制的框架,认为数据支持这一理论框架,并且人类乱伦退避机制的发生不存在敏感期。文章主张把＂是否有年龄差距在3岁以内的兄弟姐妹＂纳入利伯曼等人的亲属识别框架,进一步检验敏感期是否存在;对进化心理学抱以宽容的态度或许更为合适;不宜用科学哲学思想排斥进化心理学。     

Old dogs learning new tricks: Neuroplasticity beyond the juvenile period

Twenty years ago, the prevalent view in Psychology was that although learning and the formation of new memories are lifelong occurrences, the neural changes associated with these events were all in the existing receptors. No new neural hardware, from synapses to neurons, was thought to appear after a protracted period early in life. In the past 20 years, another view has supplanted this one, showing that although the juvenile period is especially suited to neuroplastic adaptation, there is hard neuroplastic change later in life as well. We review a selection of evidence for this view from both animal and human models, showing how it reflects three principles of neuroplasticity: (1) earlier and later experience-induced changes to neuroarchitecture differ in degree more so than in type; (2) the types of experiences that lead to neuroplastic change narrow with age; and (3) differences in the amenability of neural circuitry to change result from basic differences in neuroarchitecture and neuroenvironment in different phases of development.