特征相似性、类别标签与因果关系在归纳推理中的作用

采用人工材料,比较类别标签、特征相似性与因果关系对归纳推理强度的影响。包括两个实验,实验1比较类别标签与特征相似性对归纳推理的影响,结果表明,当类别标签对归纳推理的影响显著强于特征相似性时,不能将类别标签等同于一个相似性特征。实验2进一步探讨类别标签与因果关系对归纳推理的作用,结果表明,因果关系作用明显强于类别标签的作用。综合两个实验的结果并整合前人相关研究,提出了不同关系影响归纳推理的强度假想。     

Directing gaze: The effect of disclaimer labels on women's visual attention to fashion magazine advertisements

In an effort to combat the known negative effects of exposure to unrealistic thin ideal images, there is increasing worldwide pressure on fashion, media and advertising industries to disclose when images have been digitally altered. The current study used eye tracking technology to investigate experimentally how digital alteration disclaimer labels impact women's visual attention to fashion magazine advertisements. Participants were 60 female undergraduate students who viewed four thin ideal advertisements with either no disclaimer, a generic disclaimer, or a specific more detailed disclaimer. It was established that women did attend to the disclaimers. The nature of the disclaimer had no effect on time spent looking at particular body parts, but did affect the direction of gaze following reading of the disclaimer. This latter effect was found to be greater for women high on trait appearance comparison. Further research is paramount in guiding effective policy around the use of disclaimer labels.     

儿童归纳推理中的标签作用

传统的归纳推理观主要包括特征相似性观和概念观。在基于这两种传统观点的研究过程中,研究者逐渐发现类别知识,特别是标签起到的独特作用,但目前关于不同类型标签作用的分析还缺乏系统性。该文从分析目前两大主要标签研究现状——语言标签和类别标签入手,试图明确标签作用和关系、解释混淆和误解;同时,作者就以标签为载体的研究同儿童语言发展间存在的密切联系提出了儿童归纳推理发展的语言认知模式。文章最后认为未来的研究方向应集中在对机制、技术和深层次内部关系三方面问题的探讨上。     

Self-directed speech affects visual search performance

People often talk to themselves, yet very little is known about the functions of this self-directed speech. We explore effects of self-directed speech on visual processing by using a visual search task. According to the label feedback hypothesis (Lupyan, 2007a), verbal labels can change ongoing perceptual processing—for example, actually hearing “chair” compared to simply thinking about a chair can temporarily make the visual system a better “chair detector”. Participants searched for common objects, while being sometimes asked to speak the target's name aloud. Speaking facilitated search, particularly when there was a strong association between the name and the visual target. As the discrepancy between the name and the target increased, speaking began to impair performance. Together, these results speak to the power of words to modulate ongoing visual processing.     

类别学习语言标签效应的眼动研究

采用眼动技术,通过两个实验探讨人工语言标签与真实语言标签在类别学习中的作用。实验一对33名大学本科被试施测,探讨了人工语言标签对类别学习的影响。结果发现,在人工语言标签下,个体会基于标签的相似性进行分类。实验二对34名大学本科被试施测,探讨了真实语言标签对类别学习的影响。结果发现,在真实语言标签下,个体会基于标签的类别知识进行分类。类别学习中语言标签效应的熟悉程度影响分类方式,不熟悉的类别语言标签基于相似性分类,熟悉的类别语言标签基于知识分类;基于类别知识分类准确性更高,速度更快。     

归纳推理中相似性和类别标签的作用

该文采用“篇章阅读”实验范式探索了归纳推理中前提类别和结论类别间相似性、结论类别标签属性对归纳推理的作用。90名大学生被试参加了3个实验。实验1结果表明,归纳推理受前提类别和结论类别之间相似性的影响,相似性越高归纳推理力度越强;实验2结果表明,归纳推理还受结论类别上位类别知识的影响,当类别属性和相似性冲突情况下,被试更倾向按照类别属性进行推理;实验3结果表明,归纳推理通达上位类别知识是一个主动建构的过程,即使是在类别标签不确定的情况下,被试仍然依赖类别标签进行推理。并初步提出了“归纳推理力度=两事物相似性×归类概率”模型设想。     

Individual differences in emotional expression discrimination are associated with emotion label production in toddlers

It is possible that the visual discrimination of emotion categories and emotion word vocabulary develop via common emotion-specific processes. In contrast, it is possible that they develop with vocabulary development more generally. This study contrasts these two possibilities. Twenty-three 26-month-olds participated in a visual perceptual discrimination task involving emotional facial expressions. After familiarization to a 100% happy face, toddlers were tested for their visual preference for a novel sad face in a side-by-side presentation paired with the familiar happy face. Parental report was used to quantify production of emotion words and vocabulary generally. Visual preference for the novel emotion (sad) in the discrimination task correlated with emotion word vocabulary size but not with overall vocabulary size.     

The effect of exposure to thin models and digital modification disclaimers on women's body satisfaction

This study tests the effectiveness of public health initiatives aimed at reducing the adverse effects of exposure to thin images in advertising on women's body satisfaction. Using an online experiment with 195 Israeli adult women, we test the effects of message factors that are expected to influence body satisfaction—the model's body size, and the presence and size of disclaimers. Compared with advertisements featuring a thin model, exposure to an average sized model was indirectly and positively associated with body size satisfaction, through the perception of the model's body size. However, exposure to disclaimers regarding digital modification of the model did not influence body satisfaction. Moreover, irrespective of whether they were exposed to a disclaimer or not, most participants who viewed ads featuring thin models thought that the image had been digitally modified. The results call for further research on the effectiveness of disclaimer labels for promoting body satisfaction.     

Mandatory Cancer Risk Warnings on Alcoholic Beverages: What Are the Ethical Issues?

The link between alcohol consumption and cancer is well established, but public awareness of the risk remains low. Mandated warning labels have been suggested as a way of ensuring “informed choice” about alcohol consumption. In this article we explore various ethical issues that may arise in connection with cancer warning labels on alcoholic beverages; in particular we highlight the potentially questionable autonomy of alcohol consumption decisions (either with or without labels) and consider the implications if the autonomy of drinking behavior is substantially compromised. Our discussion demonstrates the need for the various ethical issues to be considered and addressed in any decision to mandate cancer warning labels.     

ACQUISITION OF SIGN LANGUAGE BY AUTISTIC CHILDREN. I: EXPRESSIVE LABELLING

There has been growing interest in teaching sign language to autistic children who have failed to develop speech. However, controlled experimentation in this area is nonexistent. In the present study, four nonverbal autistic children were taught expressive sign labels for common objects, using a training procedure that consisted of prompting, fading, and stimulus rotation. The efficacy of the procedure was demonstrated in a multiple-baseline design across objects. The results were reliable, replicable across children, and generalizable across therapists. A stimulus control analysis demonstrated that, for three of the children, correct signing was controlled solely by the visual cues associated with the presentation of a given object and was independent of the auditory cues related to the same object. These latter results are discussed with respect to the known perceptual and linguistic deficits of autistic children.