A minimal ingroup advantage in emotion identification confidence

Emotion expressions convey valuable information about others’ internal states and likely behaviours. Accurately identifying expressions is critical for social interactions, but so is perceiver confidence when decoding expressions. Even if a perceiver correctly labels an expression, uncertainty may impair appropriate behavioural responses and create uncomfortable interactions. Past research has found that perceivers report greater confidence when identifying emotions displayed by cultural ingroup members, an effect attributed to greater perceptual skill and familiarity with own-culture than other-culture faces. However, the current research presents novel evidence for an ingroup advantage in emotion decoding confidence across arbitrary group boundaries that hold culture constant. In two experiments using different stimulus sets participants not only labeled minimal ingroup expressions more accurately, but did so with greater confidence. These results offer novel evidence that ingroup advantages in emotion decoding confidence stem partly from social-cognitive processes.     

Linking cheating in school and corruption

Introduction

Previous research suggests a link between academic cheating and corruption. However, no prior empirical studies examined this link with cross-cultural data.

语音控制加工经验有助于促进语音执行控制功能

来自双语的研究表明,双语者在抑制、转换、注意力维持等执行控制功能方面较之于单语者具有显著的认知优势效应。该效应是双语者对诸多语言亚成分协同控制的结果,还是对不同语音体系控制的结果,目前依然存在争论。本研究以单语单言儿童（仅会说汉语普通话）和单语双言儿童（同时会使用汉语普通话和泰州方言）为被试,通过线索-切换任务和语音Stroop任务就上述问题进行了研究。结果显示：（1）在线索-切换任务上,两组儿童作业表现差异不显著;（2）在语音Stroop任务上,单语双言儿童具有显著的认知优势。据此,本研究认为双语认知优势的获得是个体对诸如句法、语义、正字法、语音、词素等多种语言亚成分协同控制的结果。     

工作记忆更新任务中的认知优势效应

目的：采用N-back范式,探讨熟练双语者与非熟练双语者之间工作记忆更新能力的差异,以验证双语优势效应是否存在于工作记忆更新任务中。方法：采用数字型2-back任务,两因素混合实验设计。自变量分别为被试间变量(熟练双语者与非熟练双语者）和被试内变量（低难度任务组和高难度任务组）,因变量为2-back任务中目标刺激、非目标刺激、诱惑刺激和非诱惑刺激的准确率和反应时。结果：熟练双语者与非熟练双语者在低难度的2-back任务（一般的2-back任务）中,目标刺激和非目标刺激的准确率和反应时上没有差异;在高难度任务组（有冲突的2-back任务）中,熟练双语者在非目标刺激、诱惑刺激和非诱惑刺激的准确率显著高于非熟练双语者。结论：工作记忆更新中的“双语优势效应”更容易体现在高执行功能需求的条件下。     

愉快面孔识别优势及其认知神经机制

愉快面孔识别优势表现为被试对高兴面孔比对其他情绪面孔的识别正确率更高、反应时更短。大量研究以简笔画和面孔图片为材料, 在情绪分类任务和视觉搜索任务中均发现这一优势。该优势存在诊断性价值假说、情绪独特性假说和出现频率假说三种不同的理论解释。近年来, 研究者采用ERP技术发现这一优势形成于反应选择阶段, 但其起始阶段尚无一致结论。未来可借助fMRI技术进一步研究其认知神经机制。     

Learning at the Margin: New Models of Strength

SUMMARY

This article was originally presented at the April, 2000 Learning from Women Conference sponsored by the Harvard Medical School and the Jean Baker Miller Training Institute. It explores the ways in which marginalization and the use of power-over maneuvers and privilege contribute to disconnection at a personal and societal level. Strength in vulnerability is proposed as an alternative to strength in isolation. The author suggests that courage is created in connection and the distorting effects of the myth of the separate-self must be challenged in order to appreciate the power of connection. This article examines specific ways to resist the disconnecting and disempowering effects of hyper-individualistic values both in and out of therapy.     

Encouraging pointing with the right hand,but not the left hand,gives right-handed 3-year-olds a linguistic advantage

Previous research has shown a strong positive association between right-handed gesturing and vocabulary development. However, the causal nature of this relationship remains unclear. In the current study, we tested whether gesturing with the right hand enhances linguistic processing in the left hemisphere, which is contralateral to the right hand. We manipulated the gesture hand children used in pointing tasks to test whether it would affect their performance. In either a linguistic task (verb learning) or a non-linguistic control task (memory), 131 typically developing right-handed 3-year-olds were encouraged to use either their right hand or left hand to respond. While encouraging children to use a specific hand to indicate their responses had no effect on memory performance, encouraging children to use the right hand to respond, compared to the left hand, significantly improved their verb learning performance. This study is the first to show that manipulating the hand with which children are encouraged to gesture gives them a linguistic advantage. Language lateralization in healthy right-handed children typically involves a dominant left hemisphere. Producing right-handed gestures may therefore lead to increased activation in the left hemisphere which may, in turn, facilitate forming and accessing lexical representations. It is important to note that this study manipulated gesture handedness among right-handers and does therefore not support the practice of encouraging children to become right-handed in manual activities.

Research Highlights

• Right-handed 3-year-olds were instructed to point to indicate their answers exclusively with their right or left hand in either a memory or verb learning task.
• Right-handed pointing was associated with improved verb generalization performance, but not improved memory performance.
• Thus, gesturing with the right hand, compared to the left hand, gives right-handed 3-year-olds an advantage in a linguistic but not a non-linguistic task.
• Right-handed pointing might lead to increased activation in the left hemisphere and facilitate forming and accessing lexical representations.

     

Robustness of the cognitive gains in 7-month-old bilingual infants: A close multi-center replication of Kovács and Mehler (2009)

We present an exact replication of Experiment 2 from Kovács and Mehler's 2009 study, which showed that 7-month-old infants who are raised bilingually exhibit a cognitive advantage. In the experiment, a sound cue, following an AAB or ABB pattern, predicted the appearance of a visual stimulus on the screen. The stimulus appeared on one side of the screen for nine trials and then switched to the other side. In the original experiment, both mono- and bilingual infants anticipated where the visual stimulus would appear during pre-switch trials. However, during post-switch trials, only bilingual children anticipated that the stimulus would appear on the other side of the screen. The authors took this as evidence of a cognitive advantage. Using the exact same materials in combination with novel analysis techniques (Bayesian analyses, mixed effects modeling and cluster based permutation analyses), we assessed the robustness of these findings in four babylabs (N = 98). Our results did not replicate the original findings: although anticipatory looks increased slightly during post-switch trials for both groups, bilingual infants were not better switchers than monolingual infants. After the original experiment, we presented additional trials to examine whether infants associated sound patterns with cued locations, for which we did not find any evidence either. The results highlight the importance of multicenter replications and more fine-grained statistical analyses to better understand child development.

Highlights

• We carried out an exact replication across four baby labs of the high-impact study by Kovács and Mehler (2009).
• We did not replicate the findings of the original study, calling into question the robustness of the claim that bilingual infants have enhanced cognitive abilities.
• After the original experiment, we presented additional trials to examine whether infants correctly associated sound patterns with cued locations, for which we did not find any evidence.
• The use of novel analysis techniques (Bayesian analyses, mixed effects modeling and cluster based permutation analyses) allowed us to draw better-informed conclusions.