注意促进效应依赖于项目-背景的质心间距

近期研究者发现, 在某些条件下增加对第一任务的注意能够提高伴随发生的第二任务的成绩, 并将其命名为注意促进效应。研究者提出双任务交互模型对之进行解释, 认为该效应产生的必要条件是时间上的重叠, 而不受空间距离的影响。基于对这一观点的质疑, 本研究探究了检测项目与背景图片的质心间距对注意促进效应的影响。结果发现, 当目标项位于背景图片中央时(质心间距为0), 表现出注意促进效应; 而当二者分开一定的空间距离时, 出现了注意干扰/抑制效应。由此可见, 项目和背景的质心间距会对注意促进效应产生影响。     

情绪背景对面部表情识别的影响及其作用机制

正确识别面部表情对成功的社会交往有重要意义。面部表情识别受到情绪背景的影响。本文首先介绍了情绪背景对面部表情识别的增强作用,主要表现为视觉通道的情绪一致性效应和跨通道情绪整合效应;然后介绍了情绪背景对面部表情识别的阻碍作用,主要表现为情绪冲突效应和语义阻碍效应;接着介绍了情绪背景对中性和歧义面孔识别的影响,主要表现为背景的情绪诱发效应和阈下情绪启动效应;最后对现有研究进行了总结分析,提出了未来研究的建议。     

时间间隔对面部表情唤醒度阈下情绪启动的影响

采用3×4混合实验设计,研究了启动刺激与靶刺激的时间间隔对面部表情唤醒度阈下情绪启动效应的影响,实验因素为启动刺激的唤醒度和时间间隔。结果发现,当时间间隔为200ms、300ms、500ms时,出现了阈下情绪启动效应,时间间隔为700ms时,启动效应消失。上述结果表明阈下情绪启动效应可在唤醒度维度上实现,但此效应只能在启动刺激与靶刺激间隔时间较短的情况下出现。     

Effects of syntactic information on semantic access of ambiguous verbs in spoken language comprehension: Evidence from a cross‐modal priming experiment1

Abstract: The aim of this study was to examine how syntactic information affects the semantic processing of ambiguous verbs in spoken Japanese. The effect of a postpositional particle on semantic access of an ambiguous verb at the end of the sentence was demonstrated in two kinds of sentences, S‐ga‐V sentences (subject, subjective postpositional particle, and ambiguous verb) and O‐wo‐V sentences (object, objective postpositional particle, and ambiguous verb). A cross‐modal priming method was used in which a target noun was presented visually in Kanji (Chinese) characters either one syllable before the end or immediately after the end of the ambiguous verb. Weak multiple priming occurred in the one‐syllable‐before condition, followed by selective access in the immediately after condition, but this multiple access was partially constrained by the preceding postpositional particle. A brief occurrence of multiple access and rapid transition to selective access were detected. Furthermore, objective particles were found to have stronger constraints on multiple access than on subjective particles. A connectionist model using a constraint‐based lexical approach was consistent with the experimental results.     

汉语听觉词汇加工中声调信息对语义激活的制约作用

进行了三个跨通道启动词汇判断实验,探讨汉语听觉词汇加工中声调信息对语义激活的制约作用。实验一和二使用具有相同音段信息、但不同声调信息的双音节合成词（如“条约”和“跳跃”）作为听觉启动词,与其中一个词有语义关系的双字词作为视觉探测词。语义启动词与其配对的声调不匹配词在第一音节的声调、第二音节的声调、或两个声调上有所不同。实验三改变语义启动词的第一或第二音节的声调,以产生声调不匹配的假词启动项;实验三还同时变化了原来的声调与产生的声调之间的相似性。实验结果表明,声调不匹配的启动项目是否产生显著的启动效应取决于词汇竞争的环境、声调输入与深层声调表征之间匹配的程度,以及不匹配的声调所在的位置。文章从语音输入中的声调信息如何激活词汇表征、声调信息如何存储在心理词典中、声调对语义激活的制约作用如何受竞争环境的影响这三个方面讨论了研究的发现。     

Survival of the Fittest: Rhetoric During the Course of an Election Campaign

Despite the tradition of studying campaign effects, we know little about the rhetorical strategies of candidates. This study speculates about the types of appeals that incumbents and challengers find most effective and that are, as a result, most likely to dominate an election campaign. Candidates have an incentive to use arguments that evoke emotions such as fear, anxiety, and anger. Emotional appeals allow candidates to emphasize consensual values, which makes it easier to mobilize their party's base while simultaneously attracting the support of the uncommitted. The use of emotional appeals is also consistent with the media's preference for drama and excitement in news reporting. Thus, emotional appeals will be more enduring than other types of appeals, and hence more likely to dominate the rhetorical landscape. A content analysis of newspaper coverage of the 1988 Canadian federal election campaign provides suggestive evidence in favor of this view.     

内隐记忆研究的新进展:概念、实验和模型

本文回顾了近年来内隐记忆研究的新进展。内隐记忆概念的描述性和模糊性正受到研究者的批评。对此概念进行更准确地把握在当前愈显紧迫和必要。多数研究者仍继续沿用这一术语．最近的实验研究修改了部分早期结论．并开始与学习和记忆研究的其他领域,尤其是涉及无意识过程的领域互相结合。内隐记忆的解释和建模呈现出从定性到定量的发展趋势。     

不同意识水平下的情绪启动

实验研究了不同意识水平下情绪启动的机制。我们采用带有褒贬意义的中文语句作为情绪刺激,要求被试在情绪刺激播放响度正常或极低的情境下对不熟悉的法语语句进行评价。结果显示无意识情绪启动显著;有意识情绪启动却未出现。我们认为无意识情绪启动是个体对刺激自动加工的结果;而个体在意识层面的认知加工可能会抑制已唤醒的情绪。另外,情绪刺激的不同排列方式对被试评价的倾向性可能有潜在的影响。     

After-affects: How automatic evaluations influence the interpretation of subsequent, unrelated stimuli

Findings from three experiments suggest that participants’ automatic evaluations of subliminally presented objects influenced how they interpreted subsequent, unrelated objects. Participants defined homographs (Experiment 1), categorized objects and people (Experiment 2), and made person judgments (Experiment 3) that all could be disambiguated in either a positive or negative way. Participants’ responses to the ambiguous targets were evaluatively consistent with their automatic evaluations of preceding, semantically unrelated objects. The findings suggest that one’s automatic evaluations can influence deliberate judgments of subsequent stimuli, even when the only shared dimension between the initially evaluated objects and the judged objects is an evaluative one. The implications of these findings are discussed with regard to possible mechanisms of evaluative priming as well as previous research concerning evaluative priming effects on social judgment.     

阈下启动与记忆分类

20多年来,阈下启动研究有了重要进展,取得了一系列成绩。不仅研究领域有了明显扩展,研究方法和技术也有了很大改进。更为重要的是,阈下启动研究的结果对记忆结构和分类的理论有重要启示。