Electrophysiological evidence for colour effects on the naming of colour diagnostic and noncolour diagnostic objects

In this study, we investigated the level of visual processing at which surface colour information improves the naming of colour diagnostic and noncolour diagnostic objects. Continuous electroencephalograms were recorded while participants performed a visual object naming task in which coloured and black-and-white versions of both types of objects were presented. The black-and-white and the colour presentations were compared in two groups of event-related potentials (ERPs): (1) The P1 and N1 components, indexing early visual processing; and (2) the N300 and N400 components, which index late visual processing. A colour effect was observed in the P1 and N1 components, for both colour and noncolour diagnostic objects. In addition, for colour diagnostic objects, a colour effect was observed in the N400 component. These results suggest that colour information is important for the naming of colour and noncolour diagnostic objects at different levels of visual processing. It thus appears that the visual system uses colour information, during naming of both object types, at early visual stages; however, for the colour diagnostic objects naming, colour information is also recruited during the late visual processing stages.     

Concepts,Constructs, Cognitive Psychology,and Personal Construct Theory

In this article, I have addressed the efforts to locate and integrate personal construct psychology with other perspectives in psychology (Neimeyer, 1985). The general domain is cognitive psychology, but with a focus on the basic building block of the cognitive perspective, the concept. Personal construct psychology is particularly interesting in this regard at this time because Kelly (1955) was adamant that his construct encompassed more than concept. Now, 36 years after his deliberations, a discussion of concepts and constructs contributes to an ongoing theoretical debate in psychology that can only serve to better reinforce the discipline.     

Trends in Online Academic Publishing

Modern information technology allows academics many new ways to enhance their research activities. This article suggests that one of the most important changes in recent years has been the overwhelming proliferation of academic research. It proposes that many new developments in online publishing have been, and will continue to be, in response to this proliferation of research. It also offers some general principles based on six years' working for a series of innovative online journals, including examples of where new technologies have been used successfully to enrich a journal's content without adding substantively to the workloads of authors and editors.     

Assessment of Multiple Membership Multilevel Models: An Application to Interviewer Effects on Nonresponse

Multilevel multiple membership models account for situations where lower level units are nested within multiple higher level units from the same classification. Not accounting correctly for such multiple membership structures leads to biased results. The use of a multiple membership model requires selection of weights reflecting the hypothesized contribution of each level two unit and their relationship to the level one outcome. The Deviance Information Criterion (DIC) has been proposed to identify such weights. For the case of logistic regression, this study assesses, through simulation, the model identification rates of the DIC to detect the correct multiple membership weights, and the properties of model variance estimators for different weight specifications across a range of scenarios. The study is motivated by analyzing interviewer effects across waves in a longitudinal study. Interviewers can substantially influence the behavior of sample survey respondents, including their decision to participate in the survey. In the case of a longitudinal survey several interviewers may contact sample members to participate across different waves. Multilevel multiple membership models are suitable to account for the inclusion of higher-level random effects for interviewers at various waves, and to assess, for example, the relative importance of previous and current wave interviewers on current wave nonresponse. To illustrate the application, multiple membership models are applied to the UK Family and Children Survey to identify interviewer effects in a longitudinal study. The paper takes a critical view on the substantive interpretation of the model weights and provides practical guidance to statistical modelers. The main recommendation is that it is best to specify the weights in a multiple membership model by exploring different weight specifications based on the DIC, rather than prespecifying the weights.     

Mechanism Involvement During Skill Imagery

Explanations of the effects of initial mental imagery practice on the subsequent performance of a motor task may be divided into two categories. Inflow explanations propose that proprioceptive feedback generated during imagery practice serves as the underlying mechanism while outflow explanations claim that cognitive operations (e.g., motor programs) generated during skill imagery serve as the basis for physical performance. A test of these two models was conducted by comparing unilateral and bilateral transfer in a rotary pursuit task following either imagery or physical practice (cf. Wallace, 1977). The results showed that all transfer groups produced positive transfer relative to a no-practice control group. Further, unilateral transfer was greater than bilateral transfer for physical practice. There was no difference between unilateral and bilateral transfer for imagery practice. These data were interpreted as evidence for an outflow explanation of skill imagery.     

中介效应的点估计和区间估计:乘积分布法、非参数Bootstrap和MCMC法

针对中介效应ab的抽样分布往往不是正态分布的问题,学者近年提出了三类无需对ab的抽样分布进行任何限制且适用于中、小样本的方法,包括乘积分布法、非参数Bootstrap和马尔科夫链蒙特卡罗(MCMC)方法.采用模拟技术比较了三类方法在中介效应分析中的表现.结果发现:1)有先验信息的MCMC方法的ab点估计最准确;2)有先验信息的MCMC方法的统计功效最高,但付出了低估第Ⅰ类错误率的代价,偏差校正的非参数百分位Bootstrap方法的统计功效其次,但付出了高估第Ⅰ类错误率的代价;3)有先验信息的MCMC方法的中介效应区间估计最准确.结果表明,当有先验信息时,推荐使用有先验信息的MCMC方法;当先验信息不可得时,推荐使用偏差校正的非参数百分位Bootstrap方法.     

文本阅读中协调性整合的条件

采用移动窗口阅读技术深入探讨文本阅读中协调性整合发生的条件。被试为华南师范大学一年级本科生。实验自变量是主人公特征与其目标句行为的关系,在实验一中有三个水平,一致、协调一致和恢复一致;在实验二中有两个水平,协调一致和恢复一致。实验一采用ANOVA对三种条件下目标句的阅读时间进行统计分析,结果表明,当前信息必须与先前的协调性信息有局部的不一致或不吻合是引发协调性整合的充分必要条件;实验二采用t检验分别对出现于不同位置的两个目标句的阅读时间进行统计分析,结果表明,协调性整合的结 果不仅维持了文本的连贯,而且将相关的信息建构成整体的信息块,文本阅读过程是一个包含流畅性阅读和以协调性整合为重要形式之一的整合性阅读的双加工过程。     

注意受情绪信息影响的实验范式

研究显示情绪信息对注意会产生特殊的影响,主要表现为个体特别是某些患有情绪障碍的个体对情绪信息存在注意偏向或注意增强现象。该文围绕该问题,主要介绍情绪Stroop实验、点探测实验、线索提示实验、情绪条件反射实验以及快速序列视觉呈现实验等多个实验范式的研究方法和结果,并分析今后的发展趋势。