短时动作记忆的容量和精确度与动作学习的关系

该研究采用实验室实验法,被试自我报告分析及调查访问法,以三个年龄（１０岁、１４岁、１８岁）组学生及专项运动员为实验对象,揭示短时动作记忆的容量和精确度及其与动作学习指数的关系。结果表明：（１）被试的短时动作记忆容量为“５±２”,短时动作记忆的容量与动作学习的练习次数相联系;短时动作记忆的精确度与第一次动作练习的准确度相联系。（２）短时动作记忆的容量有随年龄增长而递增的趋势。（３）运动员与非运动员被试对于同类动作学习的练习次数存在显著性差异。     

Coping with peer stressors and associated dysphoria: Acculturation differences among Chinese-American children

The purpose of this study was to explore the role of acculturation in coping with stress among 264 Chinese-American children. The results confirmed that the subjects used a variety of coping strategies including diversion, suppression, problem solving, minimization, and retaliation and that certain coping strategies influenced the dysphoria experienced as a result of peer stress. High acculturated children used retaliation significantly more often than their low acculturated counterparts and retaliation was found to be associated with less dysphoria for the high acculturated group. In contrast, low acculturated children who utilized suppression tended to report less dysphoria. Contrary to the hypothesis that general self worth would reduce the relationship between peer stressors and dysphoria, it had no bearing on the association for either acculturated group. The hypothesis that greater perceived social competence would lessen the association between peer stressors and dysphoria also failed to be supported by the data. In fact, for the high acculturation group higher social competence was actually associated with more reported dysphoria. In general, the results suggested that the adaptiveness of particular coping strategies may be influenced by acculturation level and that social competence plays a complicated role in the stress and coping process. Implications for counsellors are discussed.     

时序信息提取机制的探索

对时序信息加工的经典研究是采用新近性判断范型,结果发现其提取机制是以新近性为基础的逆向串行搜索过程。本研究采用新近性判断范型和早远性判断范型对时序信息的提取机制进行了深入的考察,结果表明：（ｌ）提取时序信息既存在逆向串行搜索,又存在顺向串行搜索;（２）早远性判断和新近性判断任务对不同部分时序信息恢复的效应不同,其中早远性判断易化早远部分,新近性判断易化新近部分──表现为对相应部分辨别力的提高和正确反应潜伏期的缩短;（３）在不同的时序信息提取任务中,被试会根据具体条件进行反转反应。     

在自然光照射下工作面照度与照度分布对学前儿童操作技能影响的研究

通过在自然光照射下,测定不同年龄的学前儿童在不同的工作面照度与不同的工作面照度分布情况下,在规定时间内从红色、黄色、绿色３种球状ＰＶＣ塑料颗粒的混合物中分拣出绿色颗粒的多少,来探讨电磁波谱中的可见光部分对学前儿童操作技能的影响。为创造适宜学前儿童进行操作训练的健康环境提供依据。     

侧脑室注射东莨菪碱对条件反射及对海马神经元自发放电的影响

本工作采用食物性运动,条件反射方法和慢性微电极记录技术。条件反射实验在9只兔上进行,海马自发放电的实验在22只兔上进行。在9次实验中,30μg的东莨菪碱注入一侧脑室后,条件反射均受到抑制,而吃食则不受影响。注射剂量为45μg时,注射后3—5分,条件反射完全消失,而吃食行为在了次实验中不受影响,在2次实验中稍有减弱,注射后20分钟左右条件反射开始恢复;侧脑室注射40μg的东莨菪碱后,海马神经元的自发活动无明显改变。文中并对抗胆碱药作用于海马抑制条件反射的可能方式进行了讨论。     

20岁至90岁成人的某些记忆活动的变化

本工作是我们过去关于记忆年老化研究的继续。记忆材料为自行设计并与全国若干单位协作编制的“试用临床记忆量表”。受试为健康成人210名.分为7个年龄组,各组性别、文化匹配。每组有20名并作韦氏成人智力量表检查。结果:1.成年至老年记忆变化总的趋势是,50岁组开始有明显减退,70岁后又有更显著的减退。2.在智力匹配条件下记忆年老化趋势相同(20、40、50、60、70岁年龄组)。3.无意义图形再认和有关联想学习年龄差异最小,无关联想学习和人像的姓氏,爱好特点回忆年龄差异最大,表明老年人建立无关的全新的联系困难。据此,作者指出老年记忆障碍可能是编码储存和提取困难相互作用的结果。     

测定光谱光效率的一些方法的比较

本文比较了一些有关测定光谱光效率函数的方法,概述了这些方法的各自特性及其优缺点。文章提请有关工作者注意:光谱光效率函数的各种测定方法还有从各方面继续深入探讨的必要。     

Category width and differentiation in semantic categories

The hypothesis that the judgemental categorizing behaviour measured by Pettigrew's Category-Width scale is linked to semantic categorization is investigated. Individual differences in broad vs. narrow categorizing behaviour measured by the C-W scale are reconceptualized within the framework of Rosch's (1977) theory of human categorization. Two extreme groups on the C-W scale, broad categorizers and narrow categorizers, were selected as subjects. One experiment employed a short-term release-from-proactive-inhibition paradigm. The amount of discrepancy in recall between the preshift and the shift trials was used as an index to perceived semantic distance. The result showed that narrow categorizers perceived the same fuzzy items in a semantic category as less similar to the good exemplars of that category than broad categorizers did. In a further experiment using a semantic-categorization technique, narrow categorizers judged the same fuzzy items as category members less frequently than broad categorizers did, indicating that narrow categorizers possess more differentiated semantic categories than do broad categorizers. These findings are seen as an extension of the differential categorizing behaviour on artificial categories in the C-W scale to semantic categorization for which there is a pre-existing system.     

操作思惟与运动操作的关系

本研究是对不同运动水平和不同运动类型的体育人员进行测验,目的在于查明:操作思惟与运动操作的水平、类型以及学习任务的关系。结果表明:运动操作的水平不同,操作思惟的发展水平也不同,但是两者并不是同步发展的。运动操作的水平必须提高到一定程度,才能引起操作思惟的相应发展;操作思惟与运动操作的类型有密切关系,操作思惟随着长期从事训练的运动项目不同而有显著差别;不同运动操作水平和类型的人,操作思惟上的敏捷性方面的差异较大;从事体育学习和训练的人,操作思惟的发展较从事其它学习任务的人高。     

在不同感觉的记忆活动中海马作用的探讨

本文旨在探讨在视、听觉与味、嗅觉这些不同感觉的记忆活动中海马的作用。发现电刺激海马显著地阻抑了兔以声音为条件信号的条件性防御反应的建立,但对以气味为条件信号的条件性防御反应的建立则无明显的影响;电损毁海马对大鼠建立以灯光为条件信号的条件性防御反应有明显的障碍作用,可是对建立以甜味为条件信号的条件性味觉厌恶反应却无明显的影响;还有,电损毁海马对大鼠上述的两种条件反应的保持均无明显的影响。这表明海马在不同感觉的记忆活动中其作用是不同的。对味、嗅觉的记忆海马的参与是不重要的,而在视、听觉记忆形成的早期阶段,海马却起着重要的作用。本文对此进行了讨论,并从系统发生及个体发育的角度进行分析,认为存在上述差异是可以理解的。