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11.
Abstract: Singleton targets that differ from distractors in a single salient attribute can be discerned regardless of the number of items in the display. Recent studies have indicated that the perception of singleton targets is facilitated by an attentional control setting. We focused on the voluntary aspect of the attentional control setting. Psychophysical and functional magnetic resonance imaging (fMRI) experiments examined the temporal characteristics of the attentional control setting by using an auditory cue. In both experiments, an auditorily cued feature‐search task was used. The cue validity (valid vs. neutral) and the cue lead time (CLT) were varied. In the psychophysical experiment, we established the effect of a symbolic cue on detection of a singleton. When the CLT was short or the cue was neutral, there was no facilitation, as re?ected by the slow activation of the attentional control setting. In our fMRI experiment, the brain activity indicates that this detection task activated the prefrontal cortex. These results demonstrate that the attentional control setting for facilitation of the singleton‐target perception modulates activity in regions of the prefrontal cortex. 相似文献
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分散空间注意条件下客体特征一致性对视觉特征错觉性结合的影响 总被引:1,自引:1,他引:0
本研究通过设置对空间注意资源的分配实施强行操作的情形下,探讨了主、次作业客体形状一致性和次作业客体间距对乏空间注意区次作业客体颜色、形状特征的检测及对特征错觉性结合的影响。实验结果表明:(1)分散空间注意使次作业区域注意减弱,对客体及其颜色和形状特征的识别均产生明显影响.而且对形状的影响又大于颜色;(2)特征错觉性结合率,主、次作业客体形状一致时比客体形状不一致时明显增大;(3)次作业客体间距对特征错觉性结合率无明显影响,但客体形状一致性和客体间距之间存在明显交互作用. 相似文献
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Sumi Shigeno 《The Japanese psychological research》2000,42(3):155-167
The work reported here investigated whether the extent of McGurk effect differs according to the vowel context, and differs when cross‐modal vowels are matched or mismatched in Japanese. Two audio‐visual experiments were conducted to examine the process of audio‐visual phonetic‐feature extraction and integration. The first experiment was designed to compare the extent of the McGurk effect in Japanese in three different vowel contexts. The results indicated that the effect was largest in the /i/ context, moderate in the /a/ context, and almost nonexistent in the /u/ context. This suggests that the occurrence of McGurk effect depends on the characteristics of vowels and the visual cues from their articulation. The second experiment measured the McGurk effect in Japanese with cross‐modal matched and mismatched vowels, and showed that, except with the /u/ sound, the effect was larger when the vowels were matched than when they were mismatched. These results showed, again, that the extent of McGurk effect depends on vowel context and that auditory information processing before phonetic judgment plays an important role in cross‐modal feature integration. 相似文献
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关于我国高等师范院校公共课心理学教材整体改革的构想 总被引:4,自引:0,他引:4
本文在作者实践基础上,从建设新时期具有我国特色的高师公共课心理学教材的高度,提出四点改革构想:1.在教材体系上,围绕师范生今后“教书”和“育人”工作组织心理学基本内容,形成有机联系的“双主线’结构;2.在教材内容上,突出“三个性”——以强调心理学内容对中学教育实践指导意义的实用性,带动理论阐述上的针对性和实践运用上的可操作性;3.在教材论述上,兼顾师范生的认识规律,采用现象—规律—运用的“三段法”程式;4.在教材编写上,提倡专家、高师公共课心理学教师和中学优秀教师“三结合”原则。 相似文献
15.
A quick eye to anger: An investigation of a differential effect of facial features in detecting angry and happy expressions 下载免费PDF全文
Detection of angry and happy faces is generally found to be easier and faster than that of faces expressing emotions other than anger or happiness. This can be explained by the threatening account and the feature account. Few empirical studies have explored the interaction between these two accounts which are seemingly, but not necessarily, mutually exclusive. The present studies hypothesised that prominent facial features are important in facilitating the detection process of both angry and happy expressions; yet the detection of happy faces was more facilitated by the prominent features than angry faces. Results confirmed the hypotheses and indicated that participants reacted faster to the emotional expressions with prominent features (in Study 1) and the detection of happy faces was more facilitated by the prominent feature than angry faces (in Study 2). The findings are compatible with evolutionary speculation which suggests that the angry expression is an alarming signal of potential threats to survival. Compared to the angry faces, the happy faces need more salient physical features to obtain a similar level of processing efficiency. 相似文献
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终末期癌症病人诊治中的心理特征与人文关怀 总被引:1,自引:0,他引:1
在诊治终末期癌症病人过程中不仅要关心他们的躯体方面,更要关心他们的心理方面,在诊治过程中要根据他们的独特的心理特征来进行人文心理关怀,维持生命质量和保证他们应有的人格尊严. 相似文献
18.
该研究考察了非英语专业具有不同英语语言水平学习者在不同难度条件下两种文化特征熟悉度对阅读理解的影响。研究发现:(1)语言水平高,或对材料背景熟悉的学习者可通过调用熟悉的文化背景知识帮助阅读理解,其得分均高于低水平,或对材料不熟悉的学习者;(2)在熟悉的文化背景条件下,当材料难度与学习者语言水平基本一致时,语言水平低的学习者也可较好地运用熟悉的文化背景知识帮助阅读理解。实验结果表明:文化特征的内容熟悉度和英语语言水平(或文章难度)对阅读理解起着重要作用,语言水平越高,作用越大。 相似文献
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建构水平理论(Construal level theory)认为时间能够独立地改变评价对象的建构水平,从而对对象的不同特征赋予不同的权重。个体倾向于用抽象的整体的特征表征时距远的事物,而用具体的局部的特征表征时距近的事物。空间距离不同的评价对象是否也遵循同样的规律?在考察时空距离与个人相关性的基础上,通过2(时间距离:明天和十年后)×2(空间距离:近地点和远地点)×2(特征类型:样例特征和类型特征)三因素被试间实验设计,探讨时间距离、空间距离、特征类型对态度的影响。结果发现,空间距离影响人们对事物的态度。在远空间距离水平上,时间距离对态度的影响显著,而在近空间距离水平上时间距离对态度的影响不显著;在远空间条件下,时距远的对象优先注意类型化的特征,时距近的对象优先注意样例化特征。最后,在建构水平理论框架内讨论了实验结果。 相似文献