糖皮质激素与记忆

对近年来有关糖皮质激素对记忆的作用的研究进行了小结。由于糖皮质激素的受体广泛分布在与记忆行为相关的脑区,而且对相应的神经元可塑性进行调节,因此糖皮质激素对个体的记忆的形成有着重要的影响。     

影响大学生自我监控能力的情境因素的实验研究

采用角色表演法,通过实验考察了冲突中影响大学生自我监控能力的情境因素。实验研究了冲突对方说话的态度对自我监控的影响。通过比较高、低自我监控者在两种态度(礼貌或粗鲁)对待下策略的使用,证实冲突中对方的说话态度显著影响了大学生在冲突中的自我监控行为：在礼貌说话态度下,高、低自我监控的大学生间在综合策略、分散策略和敌对策略的使用上有显著差异,而在粗鲁的说话态度下,两者无显著差异。     

Susceptibility to motion sickness induced by optokinetic rotation and self-rotation by walking around a vertical pole.

31 subjects viewed an optokinetic rotating drum for 12 min. in one session and self-rotated by walking quickly around a vertical pole with eyes closed while alternately flexing and extending the neck in another session. The self-rotation session contained 6 trials (3 clockwise and 3 counterclockwise rotations). Each trial contained 20 cycles of self-rotations. Self-reported ratings of nausea and symptoms of motion sickness were obtained for each session. The subjects developed symptoms of nausea, sweating, dizziness, headache, drowsiness, and changes in salivation in both drum rotation and self-rotation sessions. However, the subjects reported higher ratings of nausea in the session of optokinetic rotation than in the session of self-rotation around a vertical pole. These results indicated that both optokinetic rotation and self-rotation with eyes closed while alternately flexing and extending the neck are effective means of inducing nausea and motion sickness.     

社会信息加工领域中的情境模型理论

自Wyer和Srull把情境模型理论引入社会信息加工领域以来,情境模型理论成了社会信息加工研究的热点,其自身结构和加工机制也得到研究者的不断完善。该文简要介绍了情境模型理论的内容、结构及其基本假设。即情境模型代表人们在社会信息加工过程中形成的关于具体事件和情节的知识,并且通常在社会信息的理解过程中自动建立。这种模式一旦建立,就为理解新信息及作出相应的判断提供基础。情境模型包括三种基本信息:时空框架、实体集合及实体之间的各种相互关系。认为人们在理解信息的过程中至少需要建构5个维度,即:(1)空间,(2)时间,(3)实体,(4)因果,(5)目的。在此基础上,文章讨论了情境模型理论的未来研究方向。     

内容类别与表征方式对判定THOG问题的影响

用两因素完全随机实验方法研究了“内容类别”与“表征方式”两个因素对被试判定THOG过程中的作用。结果表明 ,被试正确解决THOG问题的成绩与用抽象内容或用具体内容来构建问题无显著差异 ,但主词是否一致的不同表征方式对被试解决这类问题的成绩有显著影响     

Behavioral and brain wave evidence for automatic processing of orthographically regular letter strings

Evidence for the automatic processing of nonword letter strings was sought in subjects who performed two different perceptual tasks. Twelve subjects detected valid words. Twelve other subjects detected Gestalt patterns that contained no letters. The targets and two types of nonword letter strings were interspersed in a stream of nonletter images. Behavioral data showed significant effects of orthographic regularity of letter strings in the group that detected words, but not in the group that detected Gestalt patterns. Brain-wave responses showed the effect of orthographic regularity in both groups. The responses were significantly larger for regular than for irregular strings. This showed that brain waves can be used to study the operation of reading processes in subjects who are performing a task that does not require reading ability.     

PSYCHOEDUCATIONAL SERVICES FOR CHILDREN AND YOUTH IN THE ORIENT: CURRENT STATUS,PROBLEMS, AND SOME REMEDIES*

Utilizing information obtained through an international survey and existing literature, patterns in the practices, research, and preparation of professionals who deliver psychoeducational services to children and youth in six Oriental countries (i.e., China, Hong Kong ¹, Japan, the Philippines, Taiwan, and Thailand) are described. Services are provided by many professional groups. While few formal programs exist for the preparation of psychologists to work in schools, those providing such services have at least a bachelor's degree. Services commonly provided include assessment, vocational and educational guidance, counseling, parent education, and teaching. School psychological services generally are not governed by legislation or professional standards. Research tends to be applied and directed toward the construction and translations of tests and toward the needs of the mentally retarded, learning disabled, and behaviorally disordered. Ten major problems creating barriers for the delivery of psychoeducational services are identified. Three suggestions to help resolve these problems are offered.     

失读病人阅读过程中汉语词的形、音、义三维关系的探讨

本文通过7例脑损伤阅读障碍病人的阅读行为分析,初步探讨了阅读认知过程中汉字词的“形”、“音”、“义”三个信息维的脑加工途径和三者间的动态关系,提出以下推论;(1)阅读过程中字词“形”、“音”、“义”信息的脑加工途径是以字形的视觉感知为起点,其后分别与字音和字义建立联系。(2)字形和字义间的联系强于字形与字音间的联系。(3)字形和字义间的强联系可能与汉字特点,以及所涉及的心理学条件不同有关。     

Can test statistics in covariance structure analysis be trusted?

Covariance structure analysis uses chi 2 goodness-of-fit test statistics whose adequacy is not known. Scientific conclusions based on models may be distorted when researchers violate sample size, variate independence, and distributional assumptions. The behavior of 6 test statistics is evaluated with a Monte Carlo confirmatory factor analysis study. The tests performed dramatically differently under 7 distributional conditions at 6 sample sizes. Two normal-theory tests worked well under some conditions but completely broke down under other conditions. A test that permits homogeneous nonzero kurtoses performed variably. A test that permits heterogeneous marginal kurtoses performed better. A distribution-free test performed spectacularly badly in all conditions at all but the largest sample sizes. The Satorra-Bentler scaled test statistic performed best overall.     

视剥夺及视剥夺学习后Jun样蛋白在雏鸡两侧半球中不同表达的研究

该实验免疫组化技术,在已有实验的基础上进一步观察比较了左眼视剥夺及单眼学习后,Ｊｕｎ样蛋白在雏鸡则半ＨＶ和ＬＰＯ中表达的差异,实验表明：１．视剥夺２．２４、４８、７２小时后观测到Ｊｕｎ样蛋白在左、右半球ＨＶ和ＬＰＯ中的表达逐渐增高,并且于视剥夺４８小时表达到达峰值。同时仅在视剥夺２小时后观测到两半球ＬＰＯ中Ｊｕｎ样蛋白的表达存在差异,在其余各视剥夺时程中两侧半球的ＬＰＯ、ＨＶ中Ｊｕｎ样蛋白的表达均