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51.
不规则几何图形识别中的信息取样优先序   总被引:6,自引:2,他引:4  
研究了不规则几何图形识别中的信息取样优先序。被试为浙江大学本科生80 名,男女各半,年龄18-22 岁,色觉正常,视力或矫正视力正常。刺激材料为20个不规则几何图形。实验的自变量有3个:①作业任务,认同与匹配2种;②显示条件,良好与不良2种;③显示方式,旋转与不旋转2种。因变量用了反应时与错误指数二项。实验的作业有二项,一项是对呈现在CRT上图形做判别作业;一项是有关信息取样优先序的问卷作业。Friedman 双向方差分析和Kendall一致性系数检验的结果表明:不规则几何图形的信息取样优先序有按取样特征信息差异度序进行编排的趋势。较稳定的取样序,特别是将整体信息置于较优先地位的取样序有助于提高图形识别的作业绩效  相似文献   
52.
经民族学与宗教学双重比较研究发现,不像其他民族、宗教,汉族及其宗教都是很难说清的,即不仅汉族的族源问题与特征问题难以说清,而且汉族的宗教认同也远比其他民族宗教难以说清。在学界,很少有人把汉族与汉族宗教联系起来。但从民族与宗教的相互关系视角,能够更好探明二者的渊源。用宗教阐释汉族的渊源,能使人豁然开朗。汉族的族性与汉族的宗教性是互为因果的,汉族的先民创造了独特的多元宗教信仰,多元宗教反过来造就了后来汉族的多元文化属性,使其能够吸收更多周边民族的精华,变成更大更为多元的民族,这是汉族能够成为世界第一大民族的根本原因之一。汉族及其宗教根源在于早期汉族并未塑造创世说,造成上古时代创世说的空白,对汉族宗教产生和发展都产生了深远影响。为此,本文探讨的重点问题是汉族发生学意义上的宗教渊源。  相似文献   
53.
为更好地结合社群主义与儒家思想塑造现代权利观念,必须首先为儒家权利观念的存在辩护。当然,儒家权利观念有其独特之处,这主要体现在等级性与伦理性两个方面。虽然儒家权利观念有别于社群主义权利观所具有的平等性、普遍性和政治性,但却不能由此就对其加以否定。有鉴于社群主义与儒家思想之间既有契合之处,也有内在分歧,而且对当前社会所遇到的现代性危机而言,儒家学说有助于从本质上对其进行剖析和反思,所以权利观念的现代化构造不妨采取"儒家思想为体、社群主义为用"的基本模式,从而实现对社群主义与儒家思想的有效整合。  相似文献   
54.
We conducted two experimental studies with between-subjects and within-subjects designs to investigate the item response process for personality measures administered in high- versus low-stakes situations. Apart from assessing measurement validity of the item response process, we examined predictive validity; that is, whether or not different response models entail differential selection outcomes. We found that ideal point response models fit slightly better than dominance response models across high- versus low-stakes situations in both studies. Additionally, fitting ideal point models to the data led to fewer items displaying differential item functioning compared to fitting dominance models. We also identified several items that functioned as intermediate items in both the faking and honest conditions when ideal point models were fitted, suggesting that ideal point model is “theoretically” more suitable across these contexts for personality inventories. However, the use of different response models (dominance vs. ideal point) did not have any substantial impact on the validity of personality measures in high-stakes situations, or the effectiveness of selection decisions such as mean performance or percent of fakers selected. These findings are significant in that although prior research supports the importance and use of ideal point models for measuring personality, we find that in the case of personality faking, though ideal point models seem to have slightly better measurement validity, the use of dominance models may be adequate with no loss to predictive validity.  相似文献   
55.
乌格是当代为数不多的、公开为知识论怀疑主义辩护的著名哲学家.乌格为怀疑主义辩护的理路是:以"水平的"和"弯曲的"为例,来说明绝对术语与相对术语的不同,并把"确定性"当作绝对术语,来证明怀疑主义的正确性.乌格借绝对不可错论来为怀疑主义论证的这种方式,是怀疑主义论证的一般模式.研究鸟格的怀疑主义论证,有助于我们正确揭示怀疑主义产生的根源.  相似文献   
56.
用实验方法研究了图形离散度与图形信号传信绩效的关系。实验的自变量为图形的离散度参数,取值范围为0.3-0.7,应变量为通道容量,实验的刺激信号为25个矩形组合图形。结果表明,矩形组合图形的离散度与传信绩效的关系为一种非线性函数关系,离散度适中(0.5左右)的图形信号传信绩效较高。增大增减小图形的离散度均不利于信息的有效传递。  相似文献   
57.
本研究采用自然实验法,探索采用构造玩具、进行启发儿童想象力的教学对发展幼儿创造力的作用。被试为50名均龄4岁8个月的寄宿幼儿园儿童,教学中纳入的变量为四种方法:(1)模仿-改进法;(2)改变模仿对象法;(3)模仿生活原型法;(4)改造生活原型法。控制班只采用模仿法进行教学。经过七个月的实验教学后,实验班儿童的一般智力和创造力都明显超过了控制班。测验资料证明,幼儿的一般智力占创造力之间,有0.4左右的正相关。  相似文献   
58.
Considerable evidence indicates that the noradrenergic system of the basolateral amygdala (BLA) participates in the consolidation of various types of emotionally arousing memories. We previously reported that administration of an anesthetic-dose of sevoflurane immediately after continuous multiple-trail inhibition avoidance (CMIA) training impaired memory consolidation. This experiment investigated whether posttraining noradrenergic activation of the BLA is sufficient to reverse the memory impairing effect of sevoflurane. Adult male Sprague-Dawley rats received bilateral injections of norepinephrine (NE 0.3, 1.0, or 3.0 μg/0.5 μl) or normal saline (NS 0.5 μl) immediately after training in a CMIA paradigm. Subsequently, the rats were exposed to sevoflurane (2% inspired) or air for 2h. Norepinephrine produced a dose-dependent enhancement of memory consolidation on a 24-h retention test. The highest dose of NE tested (3.0 μg/0.5 μl) blocked sevoflurane-induced impairment of memory consolidation and reversed the inhibitory effect of sevoflurane on activity-regulated cytoskeletal protein (Arc) expression in the hippocampus 2h after training. These findings provide evidence that the mechanism mediating the memory-impairing effect of sevoflurane involves a network interaction between the BLA noradrenergic system and modulation of Arc protein expression in the hippocampus.  相似文献   
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60.
What influences how people implicitly associate “past” and “future” with “front” and “back?” Whereas previous research has shown that cultural attitudes toward time play a role in modulating space‐time mappings in people's mental models (de la Fuente, Santiago, Román, Dumitrache & Casasanto, 2014), we investigated real life experiences as potential additional influences on these implicit associations. Participants within the same single culture, who are engaged in different intermediate‐term educational experiences (Study 1), long‐term living experiences (Study 2), and short‐term visiting experiences (Study 3), showed their distinct differences in temporal focus, thereby influencing their implicit spatializations of time. Results across samples suggest that personal attitudes toward time related to real life experiences may influence people's space‐time mappings. The findings we report on shed further light on the high flexibility of human conceptualization system. While culture may exert an important influence on temporal focus, a person's conceptualization of time may be attributed to a culmination of factors.  相似文献   
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