影响频度记忆的几个因素

本研究通过两个实验探讨了刺激呈现频度、刺激的形式及其性质、加工深度、操作难度、意向性诸因素对频度记忆的影响,结果表明频度编码并不是一个独立、自动的加工系统,对其它识记过程有影响的因素同时也能改变被试的频度估计水平;意向的作用主要体现在当识记任务有一定难度且又缺乏有效的回忆线索时,能够在有限的范围内提高频度估计的水平;记忆痕迹的深度和广度对于频度信息的提取来说是两个彼此关联的线索。此外,本文还就频度记忆领域几个主要理论观点作了简要评述。     

不同车速下司机对交通标志的辨认距离实验

本实验所得数据表明,不同车速下司机对同一标志的判读距离是不一样的,车速愈高,司机能判读标志的距离就愈短,同步行时相比,在车速提高到100公里/小时时,司机对标志的判读距离可减低35～45％。据我们的补充实验,这种现象的产生可能是由于司机在高速驾车情况下所产生的生理心理负荷造成的。     

对交迭任务记忆的实验研究(Ⅱ)

对交迭记忆任务的实验室模拟实验结果表明:(1)任务交迭类型、交迭任务数和任务呈现间隔时间都是影响交迭记忆业绩的因素。交迭记忆业绩随任务交迭类型的复杂程度提高而降低,随呈现间隔时间的延长而提高;在复式交迭类型中,随交迭任务数的增多而降低。从而说明了时间繁忙和信息加工强度是心理负荷的两个因素。(2)据实验结果求出了在本实验情境下的交迭记忆曲线公式。     

对交替呈现的立体图对的双眼立体视觉的探讨

本实验用APPLE Ⅱ微机控制的同视机,选用医用三级检查图片中的彩色和黑白两种立体图对,对30名被试进行实验。结果表明:(1)在同视机条件下,当双眼图象交替闪烁相位的交替频率平均在7Hz以上时,双眼立体视觉形成。(2)双眼刺激交替呈现时,彩色图对的立体感闪烁融合阈值约为33Hz,黑白图对的立体感闪烁融合阈值约为25Hz,两者差异十分显著(P<0.0001)。     

自我关联汉字的内隐记忆研究

实验用实字、虚字、与被试自身相关字三类汉字作刺激材料,将直接测量（再认任务）和间接测量（喜好判断任务）进行匹配,考察了被试对不同类别汉字在两种测量方式中的反应。结果发现：实字和虚字间在各种不同的实验处理中均未表现出明显的差异;中性汉字和自我关联汉字都在直接测量的两种注意水平间产生了显著差异,而在间接测量时未产生显著差异;“拥有效应”的作用不是单向的,当自我关联汉字处于注意焦点以外的位置时,直接测量出现了反转的结果。     

单眼视剥夺2小时对雏鸡记忆保持的影响

以2日龄雏鸡为研究对象,采用一次性被动回避学习模型,以不透明胶纸封贴一侧眼的方法,研究2日龄雏鸡单侧眼视剥夺2小时后对视觉学习记忆的影响,并与双眼学习条件下的记忆情况进行比较;试图探讨雏鸡在视觉信息加工过程中左、右半球的作用。实验结果表明：剥夺一侧眼（无论左或右）2小时后对雏鸡的短时记忆无影响,明显干扰雏鸡的中期和长时记忆,特别是剥夺左眼干扰更明显。     

Social Values and Relationships with Parents among American College Women of Chinese and European Descent

This study compared social values and relationships with parents among American college women of Chinese and European descent. Chinese-American women scored higher on a measure of practicality and pragmatism (mastery), hierarchy, and traditionality. The Euro-American women showed a greater interest in voluntary prosocial behaviour and philanthropy. Both groups of women reported having a sense of self, autonomous of their parents. Within the Chinese-American group, ethnic identification and religion, but not generation, moderated scores on a measure of traditionality of outlook regarding issues of law and order and social equality. We discuss the implications of our findings for recent debates in cross-cultural psychology, including the growing challenge to the individualism-collectivism dimension.     

Instance-based categorization: Automatic versus intentional forms of retrieval

Two experiments are reported which attempt to disentangle the relative contribution of intentional and automatic forms of retrieval to instance-based categorization. A financial decision-making task was used in which subjects had to decide whether a bank would approve loans for a series of applicants. Experiment 1 found that categorization was sensitive to instance-specific knowledge, even when subjects had practiced using a simple rule. L. L. Jacoby’s (1991) process-dissociation procedure was adapted for use in Experiment 2 to infer the relative contribution of intentional and automatic retrieval processes to categorization decisions. The results provided (1) strong evidence that intentional retrieval processes influence categorization, and (2) some preliminary evidence suggesting that automatic retrieval processes may also contribute to categorization decisions.     

Computerized fuzzy ratings: The concept of a fuzzy class

In this paper, we outline the concept of a fuzzy class used in programs for eliciting computerized fuzzy ratings. Fuzzy ratings allow respondents to provide symmetrical or asymmetrical latitudes of acceptance around a preferred point. These ratings have been used in research testing career theories and person-environment fit models. The variables defining the fuzzy class and the various functions that can be performed by it are described in the paper. The idea of a fuzzy class may be of interest to those involved in expert systems, knowledge engineering, or in fuzzy classification and measurement in general. A program, FUZRATE, written in object-oriented C++ code that uses the concept of a fuzzy class, is available on request. Both source code and a binary (executable) file are available.