Manipulating the QT interval of the ECG by cognitive effort

Abnormal prolongation of the QT interval of the ECG has been reported to indicate a hazard of sudden arrhythmic death. Therefore, with the aid of biofeedback from a newly devised instrument capable of measuring and recording the QT interval of the ECG in real time, ten healthy subjects, aided by biofeedback, attempted to shorten and also to lengthen QT. Although the changes achieved were relatively small, the ten subjects as a group were successful in both shortening and lenthening QT at the 0.01 level of significance. The degree of success varied, however, from person to person and from time to time in the same individual. If the findings reported here can be applied more generally to patients at risk for sudden death, and if biofeedback effects can be made to persist without reinforcement, it or other cognitive techniques may prove clinically useful for shortening QT.     

作文评分中主观性问题的研究

本文是关于作文评分中主观性问题的研究,包括三部分内容: 1.作文评分中差异性的特点。 2.不同类型主观性暗示效应差异特点原因分析。 3.不同暗示程度与年龄、性别、教龄、文化程度,任教年级的关系分析。     

结果冲突与作业难度对双重作业绩效的影响

运用单作业和双作业操作探讨结果冲突与作业难度对双重作业绩效的影响。结果表明：（１）信息干扰对双作业操作有着明显的影响。信息干扰越大,结果冲突效应越大,双作业操作绩效越差。（２）作业难度对双作业绩效有明显影响。作业难度越大,双作业操作绩效越差。根据实验结果,本研究提出了双因素假设：信息干扰和资源竞争是影响双作业操作绩效的两个主要因素。     

Cross-cultural similarity in the love attitudes scale: short form.

Recently, Hendrick, Hendrick, and Dicke presented two short forms of the Love Attitudes Scale, the first using 24 items with 4 items for each subscale and the second using 18 items with 3 items for each subscale. Their data indicated that the two short versions have even stronger psychometric properties than the original scale. This study reports an 18-item short form of the scale developed independently in Taiwan using 460 graduate and undergraduate students in the fall semester of 1997. The results demonstrated a remarkable cross-cultural similarity in the development and response to the short form of the scale and its applicability to a broader cultural setting.     

学习品质训练与小学生人格发展的相关研究

本研究采用自编教材,对１０８名小学五年级学生进行为期一年的学习品质训练,结果表明：开设学习品质训练果,能够改善小学生的学习行为表现,有效地影响小学生人格品质的发展。     

Adjustment Problems and Emerging Personality Characteristics from Early to Late Adolescence

This 6-year longitudinal study extended earlier findings of contextual influences on adolescent adjustment problems by examining relationships between adolescent emotional and behavioral problems and late adolescent personality among more than 400 youths who were followed from 7th grade to the last year of high school. Results suggest that psychological distress and behavioral problems experienced during the adolescent years (7th–10th grades) are significantly related to personality structure during the final year of high school (12th grade). Psychological distress in adolescence was primarily related to the Multidimensional Personality Questionnaire (MPQ) superfactors of negative and positive emotionality, whereas delinquency and substance use problems were primarily related to the MPQ superfactor of constraint. These relationships remained significant even when personality characteristics in 9th grade were taken into account. That is, emotional and behavioral problems predicted change in personality traits during the adolescent years. Moreover, both initial level and change in distress and problem behaviors were predictive of late adolescent or early adult personality. This finding suggests that personality formation is a dynamic process, dependent on the growth or decline, as well as the magnitude of earlier developmental problems. Because earlier research has shown that these developmental problems are affected by both distal and proximal environmental contexts as well as by the formative nature of adolescence, intervention efforts aimed at the reduction of maladjustment and the enhancement of healthy personality development should target early adolescent social contexts. Other theoretical implications of the findings also are discussed.     

Impaired Memory Retention and Decreased Long-Term Potentiation in Integrin-Associated Protein-Deficient Mice

Previously, we have demonstrated that integrin-associated protein (IAP) mRNA level is approximately fourfold higher in rats showing good retention performance (600 sec) than rats showing poor retention performance (<80 sec) in an inhibitory avoidance learning paradigm. In the present study, we have used the gene-targeted IAP-deficient mice to further investigate the role of IAP involved in memory formation and hippocampal long-term potentiation (LTP) in vivo. Results revealed that there was a significant impairment in memory retention and a significant reduction in the magnitude of LTP in IAP-deficient mice when compared with the wild-type and heterozygote mice, whereas the wild-type and heterozygote animals did not show marked differences on these measures. Furthermore, the impairment in retention performance of IAP-deficient mice was not due to different sensitivities of these animals to the electric shock. When we examined locomotor activity and rotarod treadmill performance, no differences were observed among these three groups of animals either. Western blot analysis confirmed the lack of IAP protein in IAP-deficient mice, whereas IAP expression was similar in both the wild-type and heterozygote controls. These results together demonstrate that IAP plays an important role in the process of memory formation and synaptic plasticity in mice.     

小学低年级儿童对友谊关系的认知发展

本研究用日常生活承诺问题的两难故事对小学低年级儿童作个别随访,探查了儿童对友谊关系的认知发展。结果表明,儿童有关社会-道德思维的发展遵循着一定的模式,各发展水平既是连续的,也各有质的特点,从而形成层次等级结构系统。与国外同类研究的发现不同,我国儿童在较低发展水平上已显示出对他人利益的关心和责任感。本研究还对发展中的个别差异作了探讨。     

人格维度与注意分配的关系及其选拔意义

本研究以210名男性大学生为被试,EPQ确定人格维度,微机测量注意分配,运用正交设计实验与区组实验相结合的方法综合论述了人格维度与注意分配的关系发现:E、E×N、P×E对注意分配有显著影响,N有一定影响,P和P×N的影响不显著。各影响因素的重要性顺序:E×N→P×E/E→N→P→P×N/误差,绘制了单项人格维度与注意分配关系简图。确定了三种人格维度的最佳组合型(注意分配可望最优):P1N2E1,次佳组合型:P3N2E1,最差组合型:P2N3E1,各型注意分配均值分别为0.702、0.680、0.309,本文探讨了实验结果的选拔意义,认为可从个体EPQ的结果来估测其注意分配能力,这在职业心理选拔中有重要应用价值。     

中国成人推理月份时间的加工模型

以两个实验对中国成年人推理月份时间的加工模型进行了探索。在实验一中未发现词表模型的距隔效应和方向效应。实验二的结果表明有越界效应,被试解决月份时间顺序作业与解决数字顺序任务在操作特征上有很大的相似性。本研究的结果表明,数字模型能较好地解释中国成年人推理月份时间的认知加工,而Friedman 提出的表象一词表模型则难以作出合理的解释。