FOK判断等级及其准确性的实验研究

通过实验集中控制了ＦＯＲ判断等级及其准确性的影响因素。实验以中文字串为学习材料,使用组内设计的实验方法研究了被激活信息的量和强度对ＦＯＤ等级及准确性的影响。实验结果表明：ＦＯＫ判断的等级是由被激活信息的总量决定;的,和被激活信息的正确与否无关;ＦＯＤ判断的准确性是由被激活信息的强度决定的;且二者是在内联系的。     

Gender differences in reasons for entering and leaving education administration: discriminant function analyses

Using discriminant function analyses on survey data collected from 457 students in 29 education administration programs across the United States, the authors inquired into whether men and women decide to enter and possibly leave education administration for different reasons. There were statistically significant functions separating men and women in their reasons for entering and leaving education administration. Implications of the findings are discussed.     

Internet-based instruction of the principles of base rate and prediction: A demonstration project

An Internet-based instructional module was developed using Netscape 2.0 as the graphical interface. The content concerned Bayesian probabilities and expected outcomes associated with the use of urine drug screens. JavaScript enabled interactive calculations of outcome probabilities given a selected set of parameters, and AppleScript and Claris Filemaker Pro monitored and recorded student activity and progress. The module was initially used in an undergraduate class on alcohol and drugs and subsequently evaluated on a sample of undergraduates. Student response was favorable, and student learning assessed by performance on an exam was good. Students who described themselves as not computer literate did not particularly enjoy the experience, although they performed as well as others on the test. The success of this demonstration project has led to more ambitious implementations, particularly those that monitor student activities and provide intelligent feedback.     

独体汉字的字形相似性研究

本文以速示呈现方式获得了一系列独体汉字和字符的混淆矩阵。用Luce（1963）的选择模型特混淆矩阵分解为对称的相似矩阵和反应倾向矢量。基于相似矩阵,以聚类分析和多维量表法探索了汉字和字符的视觉特征及其表征形式,为揭示汉字视觉特征的几何特性和潜在结构,在研究方法上作了有意义的偿试、此外,本研究的结果支持了作者（1995）关于在含“十”或“口”的独体汉字中,“十”与“口”是该类汉字的突出视觉特征的结论。     

双关图作为面孔刺激与非面孔刺激对大脑事件相关电位的影响

用线条描绘的图形作为刺激材料,A为老鼠,C为老头,B为双关图(ambi-guous figure)。图形按两种顺序:A→B→C(Ⅰ)和C←B→A(Ⅱ)向被试呈现,每次呈现时间100ms。被试按刺激呈现方式分成两组,每组20人。被试接受图形的同时记录事件相关电位(ERPs),B图呈现后要求被试报告观察内容。对主观报告考验,发现双关图在Ⅰ呈现方式中作为非面孔刺激(老鼠)被认知,在Ⅱ呈现方式中作为面孔刺激(老头)被认知。ERPs分析表明,双关图作为面孔刺激被识别时,T_3、Pz的P_2波潜伏期比双关图作为非面孔刺激被识别时分别延长6.09ms和7.39ms,波幅没有显著差异;双关图作为面孔刺激时T_3、T_4、Pz和Oz的P_3波的潜伏期比双关图作为非面孔刺激时延长约15ms;波幅没有显著差异。     

人类颞叶皮层与视、听信息加工:Ⅰ、神经心理模型和左颞叶癫痫病人的认知功能

对37名被试的18项神经心理测验结果进行因素分析后得到4个主要因素:知觉组织、感觉注意、记忆和知觉运动。对比组t 考验发现左颞叶瘢痫病人的节律跟随和说话人识别测验得分明显低于普通外科病人,说明左颞叶癫痫病可能影响听觉运动和非言语复杂听觉信息加工的能力。     

锂盐对大鼠脑单胺类和氨基酸类神经介质含量的影响

本文以111只大鼠为材料,研究了锂盐重度中毒、血清锂达2.67±0.9meq/升,小脑锂达2.05±0.92meq/kg时,脑及各脑区六种单胺类和氨基酸,类物质含量的改变。结果表明,与正常动物相比,脑多巴胺(DA)和谷氨酸(GA)含量显著下降,5-羟色胺(5-HT),5-羟吲哚醋酸,(5-HIAA)和γ-氨基丁酸(GABA)显著增高,去甲基肾上腺素(NE)虽有下降却未达显著水平。就各脑区而言,端脑DA和GA含量显著下降,5-HIAA和GABA显著升高;间脑的NE显著下降,5-HT和GABA显著升高;脑干中除GABA增高外,其他五种测定物未发生显著改变。 这一结果似乎支持了情感活动和情感性精神病的单胺假说;但它并不是锂盐作用的唯一的和特异性机制,它也引起包括脑干在内的各脑区的GABA含量的增高。     

国内十个地区7—12岁儿童数学概念和运算能力发展的初步研究

本文综合了对我国十个地区959名7—12岁儿童的协作研究结果。探讨了儿童在认数、数序和系列、数的组成、运算和应用等四个方面的发展情况,并对儿童数学概念和运算能力发展中知识学习与数概念发展的关系、发展的过程、环境的影响、发展的阶段性等方面进行了讨论,也谈到了协作方法问题。     

氦-氖激光对大鼠躲避条件反应的影响与纹状体神经介质的变化

用54只大鼠为材料,观察了以光导纤维导入脑内的氦-氖激光对其躲避条件反射(CAR)形成的影响和六种神经介质含量的变化。结果表明,四组动物中,只有氦-氖激光照射尾核的一组动物的学习行为指标(CAR阳性率、CAR反应次数)显著优于手术对照组,同时脑纹状体内去甲肾上腺素(NE)和多巴胺(DA)显著增高,而5-羟色胺(5-HT)降低,这是该组动物的特异性脑化学改变。     

Personality Characteristics of Ineffective,Effective, and Efficient Readers

The scores of 321 college freshmen on the Reading Versatility Test and the Adjective Check List were analyzed in an attempt to identify personality characteristics that are related to quality and/or rate of reading. The results of the study indicate that such relationships exist. High-rate efficient and effective readers characterize themselves as possessing a high degree of personality characteristics considered desirable for good adjustment and achievement in college and the world of work, and a low degree of those characteristics considered undesirable for adjustment and achievement; low-rate ineffective readers characterize themselves as possessing the opposite degree of these characteristics. The other subgroups considered tended to be more like the low-rate ineffective readers than like the high-rate effective and efficient readers. Suggestions for research investigating possible cause-effect relationships were made.