Correction to: The irreducibility of collective obligations

Philosophical Studies - The article The irreducibility of collective obligations, written by Allard Tamminga and Frank Hindriks, was originally published electronically on the publisher’s...     

老年人的元刻板印象及其对社会互动的影响

本研究考察了老年人的元刻板印象及其对老年人社会互动的影响。预研究以35名老年人为被试,通过访谈和开放式问卷,获得老年人积极与消极元刻板印象形容词。正式研究以140名老年人为被试,通过问卷调查,首先确定老年人元刻板印象的内容与结构;然后分析发现,当老年人作为社会互动的接受方时：（1）积极元刻板印象正向预测其接受外群体帮助的意愿（包括自主定向帮助和依赖定向帮助）,并且接受帮助可引发积极受助体验;（2）消极元刻板印象只正向预测老年人接受外群体自主定向帮助的意愿,且持消极元刻板印象的老年人受助体验消极。当老年人作为社会互动的发出方时;（3）积极元刻板印象正向预测老年人社会参与的频率和他们对外群体的施助意愿;（4）消极元刻板印象对施助意愿和社会参与的预测作用均不显著。综上,老年人的积极元刻板印象能促进他们的社会互动,并使他们获得良好的互动体验。     

死亡凸显对自我姓名注意瞬脱对抗效应的影响

已有研究表明死亡凸显会抑制自我面孔和自我参照记忆加工的自我优势,可是死亡凸显对自我姓名的影响尚不明确,本研究采用事件相关电位技术,探索死亡凸显对自我姓名注意瞬脱对抗效应及其大脑神经活动的影响。58名被试在经历不同的启动任务后,完成自我姓名、朋友姓名和名人姓名的注意瞬脱任务。行为结果发现自我姓名识别正确率显著高于朋友姓名和名人姓名,表现出稳定的自我姓名加工的注意瞬脱对抗效应;电生理数据发现死亡启动后自我姓名诱发的P300波幅显著低于消极启动组和中性启动组,而朋友姓名和名人姓名并不受启动的影响。本研究结果与以往研究结果共同表明死亡想法凸显会使个体将抑制自我加工（自我姓名、自我面孔和自我参照记忆）作为应对远端死亡焦虑的一种手段。     

新冠肺炎疫情期间大学生价值观特征及变化趋势探究

社会价值观对于社会群体具有重要的导向和动力作用,而社会重大事件的发生会对社会价值观的走向产生影响。研究采用价值观类型量表,对908名大学生进行调查,其中包含144名湖北省大学生,探究新冠肺炎疫情期间大学生价值观的分布特征,对比湖北省和其他地区,以及与SARS时期的异同,并预测其在疫情后期的变化趋势。结果显示:(1)在大学生的总体样本中,实用型、社会型和科学型价值观依次占据重要地位;(2)湖北省大学生中社会型价值观占据主导地位,其他地区大学生中实用型价值观占据主导地位,两个样本的整体分布特征不存在显著差异;(3)两次疫情中,社会型和实用型价值观均占据主导地位,科学型价值观的地位显著提升。     

Working mother-infant interactions across the second year of life

Play interactions between 36 college-educated, middle-income, working mothers and their infants, who had attended nursery school since 1 month of age, were videotaped when the infants were 12, 18, and 24 months of age. The videotapes were coded for mother and infant looking at each other, vocalizing, affectionate play, and constructive play. Changes noted in the infants' play behaviors across this period included an increase in infant vocalizations and constructive play and a decrease in affectionate play. These results, together with corresponding decreases in the mothers' constructive and affectionate play behavior, suggest growing autonomy of the infants' play and encouragement of autonomy by the mothers. Stability of behaviors across this period and stability of relations between infant and mother behaviors were only moderate. Comparison of these data with data from a study by Clarke-Stewart and Hevey (1981) suggested greater frequency of interactive behavior among working mothers and their infants than among nonworking mothers and their infants.     

Avoiding Type II error in assessing lead toxicity plaintiffs

This article discusses statistical parallels between excessive conservatism and insufficient conservatism in rendering forensic opinions. The elements of a tort are reviewed and their relation to psychological and psychiatric opinions is also discussed, as are psychometric and clinical approaches to assessment of impairment and causation in individual lead poisoned children. It is argued that assessments in lead poisoning cases consisting solely of cranial nerve examinations result in considerable Type II Error. Sources of Type II Error in research using analysis of covariance techniques to study the toxic effects of lead include variance stealing, use of excessive numbers of covariates, lack of attention to interactions, and use of covariates that are actually substitute measures of lead ingestion. When experts cite nonsignificant findings of studies of low-level lead exposure, it inappropriately negates lead effects in more severely lead poisoned plaintiffs. In true experimental studies where there is no ambiguity regarding causation, the destructive effects of lead are quite clear. © 1998 John Wiley & Sons, Ltd.     

Stronger renewal in human fear conditioning when tested with an acquisition retrieval cue than with an extinction retrieval cue

It was previously demonstrated in our laboratory that conditioned fear in humans can renew after extinction, when this procedure took place in a different context (ABA-renewal [Vansteenwegen et al. (2005). Return of fear in a human differential conditioning paradigm caused by a return to the original acquisition context. Behaviour Research and Therapy, 43(3), 323–336]). Using the same experimental design, we now tested the power of retrieval cues to interact with this contextual renewal phenomenon. Two groups went through acquisition and extinction (in a different context). They were then tested in the original acquisition context and in the presence of a retrieval cue. In the acquisition-cue group, this cue previously featured during the acquisition procedure; in the extinction-cue group, the cue previously featured during the extinction procedure. As expected, renewal of conditioned electro-dermal responding and retrospective expectancy ratings was strongest in the acquisition-cue group. Theoretical and clinical implications of this finding are discussed.     

Distinctions between separation anxiety and social anxiety in children and adolescents

Separation anxiety and social phobia are intertwined to a considerable degree, and high comorbidity rates have been reported. The present study used latent class analysis (LCA) to investigate if classes of children and adolescents with-simultaneously-high rates of separation anxiety and low rates of social anxiety symptoms, or vice versa, could be identified. Eight- to 18-year-olds from a large general population (n=1000) and referred sample (n=735) were assessed with the Multidimensional Anxiety Scale for Children (MASC). With LCA, a separate class of referred 8-11-year-old children with high separation anxiety scores, and simultaneously lower social anxiety scores was identified, next to a class of children with high scores on separation anxiety and social anxiety. In the other groups (referred 12-18-year-olds and children and adolescents from the general population), a class with individuals who specifically scored high on separation anxiety could not be revealed. The results indicated that separation anxiety represents a different construct than social anxiety in referred children (but not in referred adolescents or in the general population). It can be concluded that, in referred children, research regarding etiology and treatment outcome of anxiety symptoms should be aimed specifically at separation anxiety and social anxiety, instead of just investigating a broader anxiety dimension.