Perceptual constraints on implicit learning of spatial context

If perspective views of an object in two orientations are displayed in alternation, observers will experience the object rotating back and forth in three-dimensional space. Rotational motion is perceived even though only two views are displayed and each view is two-dimensional. The results of 5 experiments converge on the conclusion that the perception of apparent rotational motion produces representations in visual memory corresponding to the spatial structure of the object along its arc of rotation. These representations are view-dependent, preserving information about spatial structure from particular perspectives, but do not preserve low-level perceptual details of the stimulus.     

Objective assessment of the functional role of spike train correlations using information measures

The functional role of correlations between neuronal spike trains remains strongly debated. This debate partly stems from the lack of a standardized analysis technique capable of accurately quantifying the role of correlations in stimulus encoding. We believe that information theoretic measures may represent an objective method for analysing the functional role of neuronal correlations. Here we show that information analysis of pairs of spike trains allows the information content present in the firing rate to be disambiguated from any extra information that may be present in the temporal relationships of the two spike trains. We validate and illustrate the method by applying it to simulated data with variable degrees of known synchrony, and by applying it to recordings from pairs of sites in the primary visual cortex of anaesthetized cats. We discuss the importance of information theoretic analysis in elucidating the neuronal mechanisms underlying object identification.     

Effects of divided attention and social categorization on the own-race bias in face recognition

Perceivers remember own-race faces more accurately than other-race faces (i.e., Own-Race Bias). In the current experiments, we manipulated participants' attentional resources and social group membership to explore their influence on own and other-race face recognition memory. In Experiment 1, Chinese participants viewed own-race and Caucasian faces, and between-subjects we manipulated whether participants attention was divided during face encoding. We found that divided attention eliminated the Own-Race Bias in memory due to a reduction of memory accuracy for own-race faces, implicating that attention allocation plays a role in creating the bias. In Experiment 2, Chinese participants completed an ostensible personality test. Some participants were informed that their personality traits were most commonly found in Caucasian (i.e., other-race) individuals, resulting in these participants sharing a group membership with other-race targets. In contrast, other participants were not told anything about the personality test, resulting in the default own-race group membership. The participants encoded the faces for a subsequent recognition memory test either with or without performing a concurrent arithmetic distracting task. Results showed that other-race group membership and reducing attention during encoding independently eliminated the typical Own-Race Bias in face memory. The implications of these findings on perceptual-expertise and social-categorization models are discussed.     

Ecological perception affords an explanation of object permanence

In this paper I aim to present an explanation of object permanence that is derived from an ecological account of perceptually based action. In understanding why children below a certain age do not search for occluded objects, one must first understand the process by which these children perform certain intentional actions on non-occluded items; and to do this one must understand the role affordances play in eliciting retrieval behaviour. My affordance-based explanation is contrasted with Shinskey and Munakata's graded representation account; and although I do not reject totally the role representations play in initiating intentional action I nevertheless maintain that only by incorporating direct perception into an account of object permanence can a fuller understanding of this phenomenon be achieved.     

Personal and cultural differences in responding to criticism in three countries

The present study investigated whether verbal aggression, argument approach, argument avoidance or assertiveness had any effect on how participants in three countries responded to criticism. Consistent with the first hypothesis, men were significantly more aggressive, assertive, less avoidant, and approached argument more than women. However, men did not respond more assertively to criticism. As predicted in the second hypothesis, US Americans responded more assertively to criticism than did Japanese and Chinese. The third hypothesis predicted that verbal aggression, argument approach, argument avoidance and assertiveness would be associated with a more assertive response to criticism. The data obtained were only partially consistent with the third hypothesis. While only a small number of participants in this study indicated that they would respond to criticism with silence, US Americans used silence to mean anger while for Chinese silence showed personal embarrassment. Very few Japanese selected silence as an option for responding to a neighbor's criticism. The implications of these results are discussed.     

A Study of the Benefit of Social and Religious Support on Church Members During Times of Crisis

A majority of Americans participate in religious services and identify themselves as members of a faith community. Understanding the role that religion plays in people's lives is essential to developing a comprehensive model of social support during times of crisis. The purpose of the current study was to identify the resources of social support that are helpful for church members during times of crisis. Although research on the impact of social support has identified several types of support—and the function of such support—to people undergoing difficult times, researchers have not looked at the impact of religious beliefs and participation in religious communities on social support to any significant extent. The current study collected questionnaire data from 23 members of one congregation who experienced a personal crisis. Analysis of the data shows that religious beliefs and the support provided by the religious community were seen as extremely helpful in times of crisis. Implications for incorporating people's religious beliefs and participation in religious communities into future investigations of social support are discussed.     

系统式团体心理辅导改善儿童同伴关系的研究

本研究将系统家庭治疗的思想及技术移植到学校情景中,对实验班人际距离较远的5名嫌弃儿在原班级中开展团体心理辅导活动.实验结果表明:嫌弃儿的人际距离明显改善.辅导中系统思想的引入、积极取向的气氛对同伴关系辅导有特殊的效果.