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961.
为研究同时颜色对比机制的空间特性,本实验用光学投影方法产生出不同空间频率的同时颜色对比光栅。实验结果表明,同时颜色对比机制具有低通空间频率反应特性,即随空间频率下降,颜色对比效应增强。这一结果可能为同时颜色对比机制参与图形探测的推论提供一个实验支持。实验中也测试了几种不同条件下人眼对比敏感度函数。  相似文献   
962.
本实验训练三只恒河猴在多个非概念性和多种概念性的符号线索指令下,对同时呈现的从2到7三个数目刺激的多少概念进行高次抽象判断。一只被试猴学会了在三种符号线索交替指令下能对多、中、少作出正确的选择判断,出色完成全部程序的13个训练课题,其他两只猴成绩差些。本实验进一步证实了恒河猴具有抽象的数多少概念。实验还表明恒河猴能对中间数值作出正确判断,说明动物具有客观对象量值的序列概念。实验中符号线索实际上是语汇性符号,具有指代意义,在这种抽象符号指令下的数多少概念判断是更高层次的抽象判断。  相似文献   
963.
Regulatory focus theory (RFT) suggests that performance will be enhanced when there is a match between individual characteristics and environmental cues. Given that the application of RFT in the context of motor performance has been rarely examined, a ball-throwing task with small financial reward was conducted to test the theory. A total of 51 undergraduate students participated in this study. They were randomly assigned to either the promotion- or prevention-oriented task (which were different in terms of how the reward was instructed to be given). Results indicated that students performed better on ball throwing when the given instruction fit their relatively dominant regulatory focus. This finding supports the expectations of RFT. Implications and limitations were discussed.  相似文献   
964.
We address this question: How do Cambodian American young adults come to know about their family’s experiences of trauma? Using a social constructivist critical ideological approach, we developed a phenomenological model describing intergenerational communication about trauma (IGCT) in Cambodian American families. We found IGCT to be an interactional process in which younger and older generations each played a role. IGCT was influenced by the availability of multiple sources of information and opportunities for learning, interpersonal connectedness between the generations, emotional distress tolerance, and having motivation to empathically learn and share. When these factors were abundant, direct interactive IGCT was more likely. When wanting, the IGCT was more disrupted and incoherent, filled with emotionally charged silence and lead to negative attributions. IGCT was a dynamic process that could change over time to accommodate developmental change. Limitations of the findings, clinical implications, and future directions are discussed.  相似文献   
965.
The present study compared the roles of valence and arousal, proposed by the dimensional models of emotions, in recognizing emotional expressions. It was hypothesized that the dimension of valence, due to its functional significance, would be more salient in the recognition of emotional expressions than the dimension of arousal would be. The results of the current study supported this hypothesis. The participants in all age groups were more accurate and quicker in recognizing an emotion when the expression was paired up with another emotional expression that was different in the polarity of the valence dimension than with this similar polarity difference in the arousal dimension. The insignificant difference in recognizing the positive and negative emotional expressions in the group of elders also rejected the Socio-Emotional Selectivity Theory.  相似文献   
966.
Although previous literature has revealed the effect of a single social identity on trust, only few studies have examined how multiple social identities affect trust in others. The present research examined the effects of trustors' social identity complexity on their level of trust toward another person (interpersonal trust), outgroup members (outgroup trust), and ingroup members (ingroup trust). Study 1, which was a correlational study, indicated that trustors' social identity complexity was positively related to their interpersonal and outgroup trust. Three experimental studies were performed to identify causal relationships. Study 2 found that activating trustors' high social identity complexity produced high levels of interpersonal trust, and Studies 3 and 4 found that this effect was more pronounced when the trustee was an outgroup member (outgroup trust) rather than an ingroup member (ingroup trust). The implications of these results for social harmony are discussed.  相似文献   
967.
Previous studies explain loss aversion as the result of a situation in which the expected negative emotions derived from a potential loss exceed the expected positive emotions derived from a potential gain (subtractive logic). We questioned this view and proposed additive logic, in which a linear combination between negative and positive emotions can be used as summed anticipatory affect intensity (SAAI) to explain loss aversion. By disproving two implicit hypotheses of subtractive logic, Study 1 showed that the additive logic of expected positive and negative affect was more effective than the subtractive logic in predicting loss aversion. Study 2 used real monetary gains and losses to verify the conclusion in Study 1. Using state‐trait theory to comprehensively consider the state and trait aspects of affect intensity, we further deduced that the immediate expected affect intensity might originate from the difference of an individual trait in affect intensity. Study 3 proved this hypothesis and showed that SAAI plays an intermediary role between affect intensity and loss aversion. Furthermore, Study 4 used real gamblers in casinos in Macau as its sample and obtained the same conclusion regarding loss aversion in real life as was found in the laboratory. Finally, we explained the effect of SAAI on loss aversion and indicated the contribution and significance of this study. Copyright © 2015 John Wiley & Sons, Ltd.  相似文献   
968.
中国人面部自然肤色色域范围及典型肤色色样的研制   总被引:7,自引:0,他引:7  
林仲贤  孙秀如 《心理学报》1997,30(4):337-344
分别采用一自Au-CH-1型自动测色仪及一台302D型自动测色仪对中国人的面部自然肤色,从新生婴儿直至老年人的色度特性进行了广泛取样的测定。测定人数共1668人,其中新生婴儿至2岁幼儿508人:3-17岁的儿童及青少年548人;18-78岁的成年人及老年人612人。被测者的籍贯包括26个省市,除汉族外,还包括蒙、臧、维,壮等17个少数民族。少数民族的被测人数约占总被测人数的6%。首次确定了我国人的面部自然肤色的色域范围及皮肤反射率的分布范围。在此基础上研制成功具有我国人典型自然肤色色样一套。所得结果已被应用于电视、电影、摄影及照明等部门。  相似文献   
969.
儿童和青少年信息加工速度发展函数的研究   总被引:5,自引:0,他引:5  
选择7—19岁的被试140名,对三种不同任务进行操作。结果表明,在句图匹配任务中,儿童反应时是青年反应时的函数,指数函数能较好的描述这种共同的发展变化趋势,但在字母匹配任务中,这种线性关系较差;随着年龄的变化,信息加工速度的下降速率是根据不同的加工任务变化的,简单任务(选择反应和字母匹配)下降速度快,复杂任务(句图匹配)下降速度慢  相似文献   
970.
1信息高速公路的由来及现状1993年9月,克林顿总统代表美国政府提出“全国信息基础设施(NationalInformationInfrastructure,NII,亦称信息高速公路)”计划,即用高速信息传输通道(如光缆)和多媒体系统交流和利用信息。它有两个特点:一是可以不受时间、空间限制,同时进行声音、图象和数据交流,其传输速率可达1Gb/s以上;二是将现有信息传播工具如电话、电视、计算机等融为一体成为多媒体机而形成新的传播工具。此计划的现实意义和历史意义是难以估量的。世界各国许多大公司争相提出高达上千亿美元的投资计划,以免在这一高科技…  相似文献   
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