自闭症儿童的心理理论与中心信息整合的关系探讨

自闭症儿童的心理理论一直是儿童心理理论研究的重要领域,自闭症儿童身上心理理论缺失这一领域特殊性的加工缺损与弱的中心信息整合这一领域一般性的加工异常之问的关系研究逐渐受到了广泛关注。在阐述自闭症领域的心理理论研究,并介绍弱的中心信息整合理论的基本观点和实验证据之后,在此探讨了两者之间的关系,包括两者相互独立的观点、相互关联的观点以及其他的不同观点,并对今后的研究方向做出了展望。     

利益冲突

探讨利益冲突的概念及其要素,影响利益冲突的可能因素。利益冲突的危害,并在探讨这些问题基础上提出处理利益冲突的若干措施。     

宪政分权视野中的央地关系

在现代国家的宪政分权建构中,立法、行政、司法的横向分权与中央地方的纵向分权,具有同等重要的意义。宪政的纵向分权既需要在政治的层面上进行,也需要在行政的层面上落实。对于中国而言,解决好中央与地方的关系,必须坐实宪政的纵横双向分权,做到三个避免,注意三个关键问题,把握三个行为边界。     

中国道教协会成立五十周年庆祝大会致辞

尊敬的各位领导、各位道长、各位来宾:今天我们大家欢聚一堂,隆重庆祝中国道教协会成立五十周年。这次庆祝大会在迎接党的十七大即将召开的日子里举行,让我们深感振奋。     

利益相关者权利与企业社会责任——兼论企业的环保责任

企业的社会责任可以从责任相对人一企业利益相关者的权利的角度来界定.企业社会责任不仅仅要求企业超越简单的"股东利益最大化"的狭隘立场,而且也要超越狭隘的"社会利益最大化"的立场,以超越单纯经济计算的理性态度来维护和促进人类的某些基本价值的实现.     

Expectations,gains, and losses in the anterior cingulate cortex

The anterior cingulate cortex (ACC) participates in evaluating actions and outcomes. Little is known on how action-reward values are processed in ACC and if the context in which actions are performed influences this processing. In the present article, we report ACC unit activity of monkeys performing two tasks. The first task tested whether the encoding of reward values is context dependent—that is, dependent on the size of the other rewards that are available in the current block of trials. The second task tested whether unexpected events signaling a change in reward are represented. We show that the context created by a block design (i.e., the context of possible alternative rewards) influences the encoding of reward values, even if no decision or choice is required. ACC activity encodes the relative and not absolute expected reward values. Moreover, cingulate activity signals and evaluates when reward expectations are violated by unexpected stimuli, indicating reward gains or losses.     

Verifying visual properties in sentence verification facilitates picture recognition memory

According to the perceptual symbols theory (Barsalou, 1999), sensorimotor simulations underlie the representation of concepts. We investigated whether recognition memory for pictures of concepts was facilitated by earlier representation of visual properties of those concepts. During study, concept names (e.g., apple) were presented in a property verification task with a visual property (e.g., shiny) or with a nonvisual property (e.g., tart). Delayed picture recognition memory was better if the concept name had been presented with a visual property than if it had been presented with a nonvisual property. These results indicate that modality-specific simulations are used for concept representation.     

Measuring emotional expression with the Linguistic Inquiry and Word Count

The Linguistic Inquiry and Word Count (LIWC) text analysis program often is used as a measure of emotion expression, yet the construct validity of its use for this purpose has not been examined. Three experimental studies assessed whether the LIWC counts of emotion processes words are sensitive to verbal expression of sadness and amusement. Experiment 1 determined that sad and amusing written autobiographical memories differed in LIWC emotion counts in expected ways. Experiment 2 revealed that reactions to emotionally provocative film clips designed to manipulate the momentary experience of sadness and amusement differed in LIWC counts. Experiment 3 replicated the findings of Experiment 2 and found generally weak relations between LIWC emotion counts and individual differences in emotional reactivity, dispositional expressivity, and personality. The LIWC therefore appears to be a valid method for measuring verbal expression of emotion.     

Size matters: saccades during scene perception

We investigated the effect of image size on saccade amplitudes. First, in a meta-analysis, relevant results from previous scene perception studies are summarised, suggesting the possibility of a linear relationship between mean saccade amplitude and image size. Forty-eight observers viewed 96 colour scene images scaled to four different sizes, while their eye movements were recorded. Mean and median saccade amplitudes were found to be directly proportional to image size, while the mode of the distribution lay in the range of very short saccades. However, saccade amplitudes expressed as percentages of image size were not constant over the different image sizes; on smaller stimulus images, the relative saccades were found to be larger, and vice versa. In sum, and as far as mean and median saccade amplitudes are concerned, the size of stimulus images is the dominant factor. Other factors, such as image properties, viewing task, or measurement equipment, are only of subordinate importance. Thus, the role of stimulus size has to be reconsidered, in theoretical as well as methodological terms.     

事件性前瞻记忆的加工机制：来自ERP的证据

采用事件相关电位技术,对前瞻记忆的加工机制——主要是执行前的加工机制进行研究。控制条件为单纯的背景任务,实验条件为背景任务含前瞻记忆任务,对两种条件下非靶线索的行为数据进行比较,结果表明实验条件下被试的反应时显著长于控制条件,可能说明两种条件的认知过程存在差异,这种差异在ERPs上主要体现为刺激呈现200ms以后,两种条件的波形和脑地形图存在显著差异。结果支持预备注意加工和记忆加工理论,也部分支持多重加工理论