先天性色觉异常的特性及检查方法

本文简单介绍了各种先天性色觉异常的特性及常用的色觉检查方法。不同类型的先天性色觉异常在颜色匹配、光谱感受性、色差辨别等方面均表现出不同的特点,色觉检查方法就是在这些特点的基础上,根据异常者的某一色觉缺陷设计的。常用的检查方法有假同色图测验,色相排列测验和色盲镜等。一般来说,不同的检查方法各有所长,并应用于临床的不同阶段     

Acceleration model in the heterogeneous case of the general graded response model

A new model, called acceleration model, is proposed in the framework of the heterogenous case of the graded response model, based on processing functions defined for a finite or enumerable number of steps. The model is expected to be useful in cognitive assessment, as well as in more traditional areas of application of latent trait models. Criteria for evaluating models are proposed, and soundness and robustness of the acceleration model are discussed. Graded response models based on individual choice behavior are also discussed, and criticisms on model selection in terms of fitnesses of models to the data are also given.This research was supported by the Office of Naval Research (N00014-90-J-1456).     

The technical drift of applied behavior analysis

Four dimensions (applied, analytic, general, conceptual) were selected from Baer, Wolf, and Risley's (1968) seminal article on the nature of applied behavior analysis and were monitored throughout the first 10 volumes of the Journal of Applied Behavior Analysis. Each of the experimental articles in Volumes 1 through 6 and the first half of Volumes 7 through 10 was rated on each of these dimensions. The trends showed that applied behavior analysis is becoming a more purely technical effort, with less interest in conceptual questions. We are using simpler experimental designs and are conducting fewer analogue studies. Although concern for maintenance is increasing, other forms of generality are being measured or analyzed less often. These trends are discussed in terms of a technical drift in applied behavior analysis.     

The processing of task-irrelevant emotion and colour in the Approach-Avoidance Task

When processing information about human faces, we have to integrate different sources of information like skin colour and emotional expression. In 3 experiments, we investigated how these features are processed in a top-down manner when task instructions determine the relevance of features, and in a bottom-up manner when the stimulus features themselves determine process priority. In Experiment 1, participants learned to respond with approach-avoidance movements to faces that presented both emotion and colour features (e.g. happy faces printed in greyscale). For each participant, only one of these two features was task-relevant while the other one could be ignored. In contrast to our predictions, we found better learning of task-irrelevant colour when emotion was task-relevant than vice versa. Experiment 2 showed that the learning of task-irrelevant emotional information was improved in general when participants’ awareness was increased by adding NoGo-trials. Experiment 3 replicated these results for faces and emotional words. We conclude that during the processing of faces, both bottom-up and top-down processes are involved, such that task instructions and feature characteristics play a role. Ecologically significant features like emotions are not necessarily processed with high priority. The findings are discussed in the light of theories of attention and cognitive biases.     

The impact of task complexity on information use in multi-attribute decision making

This study presents a process analysis of multi-attribute decision making. The decision problems concerned the selection of the most suitable candidate for a job opening. The problems varied in terms of complexity, i.e. the number of candidates and the number of attributes used to describe these alternatives. Results show that with an increasing number of alternatives, subjects (N = 48) used fewer attributes for the evaluation of alternatives, and made, on average, less references to the alternatives. The type of judgment most often used was absolute dimensional (comparison of an attribute to an absolute standard) and was used more often at the beginning than toward the end of the decision process. Overall, judgments were predominantly positive. The percentage of positive judgments decreased with increasing complexity, and toward the end of the decision process. Significantly more judgments, particularly positive ones, concerned the finally chosen alternative as compared to the rest of the alternatives. Finally, analysis of subjects' usage of decision rules revealed that increasing the number of alternatives resulted in an increasing use of elimination strategies. Implications of these findings for the design of decision aids will be discussed.     

风险取向类型与爱荷华赌博任务成绩的影响

神经科学领域的研究者们设计了测量情感决策的经典爱荷华赌博任务并提出了体细胞标记假说来解释其研究结果,但迄今为止这一假说还没有得到一致认可。许多研究提出了可能影响爱荷华赌博任务成绩的其他因素。本研究试图在前人研究的基础上采用实验法探讨风险取向类型这一人格因素是否影响正常个体的爱荷华赌博任务成绩。实验结果显示,不同风险取向类型的个体在爱荷华赌博任务中的成绩和表现截然不同。典型风险趋向型个体在爱荷华赌博任务中的表现类似于某些神经系统患者,倾向于更多地选择不利纸牌,其任务成绩显著差于典型风险回避型个体。这一研究结果表明：风险取向类型是影响正常个体爱荷华赌博任务成绩的重要因素之一。     

拖延对工作绩效的影响——压力偏好与任务类型的调节作用

本研究探索了压力偏好和任务类型在拖延行为对绩效产生作用过程中的调节作用。用问卷调查的方法对155人进行调查。结果发现：相比偏好压力者,厌恶压力者的工作绩效更容易受到拖延行为的影响;对于复杂任务,拖延对偏好压力者的绩效影响显著低于对厌恶压力者;而对于简单任务,两种类型人的绩效的差别并不明显。结论是,偏好压力者能够减弱拖延行为对其工作绩效的影响,尤其对于复杂任务,这种影响更加明显。     

企业员工人口学变量、工作特征与主观幸福感的关系：工作压力的作用

本研究通过对北京、上海、南京、成都、长沙及广州266名企业员工有效样本的测查,考察了员工幸福感在人口学变量和工作特征变量上的差异,探讨了工作压力对幸福感的影响机制,发现不同年龄、学历、企业所有制、行业和工作岗位的员工的幸福感水平差异显著,人口学变量和工作特征对幸福感有交互作用。回归分析发现,工作压力、学历和工作类别变量分别直接影响幸福感,年龄和学历还通过工作压力间接影响幸福感。     

大学生道德人格特点的初步研究

结合道德心理学研究的新进展,采用问卷法,以803名大学生为被试,对大学生道德人格特点进行了研究。结果表明：（1）大学生道德人格的性别差异显著,大学女生的总分和与人为善因素分数显著高于大学男生,而大学男生的不道德性因素分数和刚正无私因素分数显著高于大学女生。（2）大学生道德人格总分的年级差异不显著,而在具体因素上差异显著：大三学生的与人为善分数明显高于大一和大四学生。（3）大学生道德人格与道德行为的相关极为显著,大学生道德人格是道德行为的有效预测源。