语言表征在颜色类别知觉中的作用

采用同时和继时实验任务,探讨语言表征在颜色类别知觉中的作用.实验一刺激同时呈现,被试表现出类别知觉效应,但效应不受语言干扰影响.实验二刺激间隔呈现,被试表现出类别知觉效应,效应在语言干扰时消失.实验三采用继时任务,没有语言干扰,在刺激呈现间隔(SOA)小于300ms时效应不显著,大于等于300ms时效应显著.研究提示类别知觉效应的机制取决于任务要求和被试无意识的认知策略.在同时任务中效应来自知觉过程本身,在继时任务中效应来自语言编码.继时任务中效应量随SOA变化,说明语言表征由上至下地影响知觉加工,类别知觉是一个动态过程.     

People's hypercorrection of high-confidence errors: did they know it all along?

This study investigated the "knew it all along" explanation of the hypercorrection effect. The hypercorrection effect refers to the finding that when people are given corrective feedback, errors that are committed with high confidence are easier to correct than low-confidence errors. Experiment 1 showed that people were more likely to claim that they knew it all along when they were given the answers to high-confidence errors as compared with low-confidence errors. Experiments 2 and 3 investigated whether people really did know the correct answers before being told or whether the claim in Experiment 1 was mere hindsight bias. Experiment 2 showed that (a) participants were more likely to choose the correct answer in a 2nd guess multiple-choice test when they had expressed an error with high rather than low confidence and (b) that they were more likely to generate the correct answers to high-confidence as compared with low-confidence errors after being told they were wrong and to try again. Experiment 3 showed that (c) people were more likely to produce the correct answer when given a 2-letter cue to high- rather than low-confidence errors and that (d) when feedback was scaffolded by presenting the target letters 1 by 1, people needed fewer such letter prompts to reach the correct answers when they had committed high- rather than low-confidence errors. These results converge on the conclusion that when people said that they knew it all along, they were right. This knowledge, no doubt, contributes to why they are able to correct those high-confidence errors so easily.     

薪酬体系框架与考核方式对个人绩效薪酬选择的影响

研究从行为决策视角, 采用情景实验法探讨了薪酬体系框架与绩效考核方式对个人绩效薪酬选择的影响。结果表明：(1)个体根据实际收入水平低于/高于内心预期收入参照点将分别形成损失/收益性的预期收入框架, 在损失性收入框架下选择风险性绩效薪酬的几率更高; (2)底薪加提成的薪酬支付模式会让个体形成收益框架, 薪酬打包的支付模式会让个体形成损失框架, 个体在薪酬打包模式下选择绩效薪酬体系的几率更高; (3)与封闭式目标的考核体系相比, 企业采用开放式目标的绩效考核会抑制预期收入框架和薪酬支付框架对个人绩效薪酬选择的影响。     

马克思与罗尔斯的公平正义观:比较及启示

马克思与罗尔斯的公平正义观具有同一性,主要体现在他们的公平正义观都源于对资本主义不公平现象的深刻反思,并且他们都极为关注社会基本结构的正义,关注实质正义。马克思与罗尔斯公平正义观的差异主要体现在:马克思是从现实的社会关系尤其是生产关系出发来关注现实人的不平等状况,而罗尔斯则从逻辑设定的无知之幕之后引申出正义原则;在公平正义的实现途径上,马克思是革命式的,而罗尔斯则是改良式的。马克思与罗尔斯在公平正义观上的紧密联系和迥异的学术见解,对建构与我国现代化进程相一致的公平正义理论具有重要的方法论启示。     

Metacognitive judgments of repetition and variability effects in natural concept learning: evidence for variability neglect

In four experiments, we examined the effects of repetitions and variability on the learning of bird families and metacognitive awareness of such effects. Of particular interest was the accuracy of, and bases for, predictions regarding classification of novel bird species, referred to as category learning judgments (CLJs). Participants studied birds in high repetitions and high variability conditions. These conditions differed in the number of presentations of each bird (repetitions) and the number of unique species from each family (variability). After study, participants made CLJs for each family and were then tested. Results from a classification test revealed repetition benefits for studied species and variability benefits for novel species. In contrast with performance, CLJs did not reflect the benefits of variability. Results showed that CLJs were susceptible to accessibility-based metacognitive illusions produced by additional repetitions of studied items.     

Reconsolidation from negative emotional pictures: Is successful retrieval required?

Finn and Roediger (Psychological Science 22:781-786, 2011) found that when a negative emotional picture was presented immediately after a successful retrieval, later test performance was enhanced as compared to when a neutral picture or a blank screen had been shown. This finding implicates the period immediately following retrieval as playing an important role in determining later retention via reconsolidation. In two new experiments, we investigated whether successful retrieval was required to show the enhancing effect of negative emotion on later recall. In both experiments, the participants studied Swahili-English vocabulary pairs, took an intervening cued-recall test, and were given a final cued-recall test on all items. In Experiment 1, we tested a distinctiveness explanation of the effect. The results showed that neither presentation of a negative picture just prior to successful retrieval nor presentation of a positive picture after successful retrieval produced the enhancing effect that was seen when negative pictures were presented after successful retrieval. In Experiment 2, we tested whether the enhancing effect would occur when a negative picture followed an unsuccessful retrieval attempt with feedback, and a larger enhancement effect occurred after errors of commission than after errors of omission. These results indicate that effort in retrieving is critical to the enhancing effect shown with negative pictures; whether the target is produced by the participant or given by an external source following a commission error does not matter. We interpret these results as support for semantic enrichment as a key element in producing the enhancing effect of negative pictures that are presented after a retrieval attempt.     

A year in the college life: Evidence for the social investment hypothesis via trait self-control and alcohol consumption

The present study examined 12-month prospective relations among trait self-control, subjective role investment, and alcohol consumption in a sample of university students (N = 129). Using neo-socioanalytic theory and the social investment hypothesis as guiding frameworks, it was expected that greater initial role investment would predict greater self-control and less alcohol consumption at follow-up. Path analyses showed higher initial levels of subjective college student role investment predicted greater subsequent self-control and lower drinking amounts, controlling for initial standing on self-control and alcohol consumption. Greater initial trait self-control also predicted subsequent lower alcohol consumption. The discussion emphasizes the importance of incorporating subjective role investment, in addition to nominal role participation, in developmental accounts of personality traits, social identity, and behavior.     

The effect of sonority on word segmentation: evidence for the use of a phonological universal

It has been well documented how language-specific cues may be used for word segmentation. Here, we investigate what role a language-independent phonological universal, the sonority sequencing principle (SSP), may also play. Participants were presented with an unsegmented speech stream with non-English word onsets that juxtaposed adherence to the SSP with transitional probabilities. Participants favored using the SSP in assessing word-hood, suggesting that the SSP represents a potentially powerful cue for word segmentation. To ensure the SSP influenced the segmentation process (i.e., during learning), we presented two additional groups of participants with either (a) no exposure to the stimuli prior to testing or (b) the same stimuli with pauses marking word breaks. The SSP did not influence test performance in either case, suggesting that the SSP is important for word segmentation during the learning process itself. Moreover, the fact that SSP-independent segmentation of the stimulus occurred (in the latter control condition) suggests that universals are best understood as biases rather than immutable constraints on learning.     

决策者角色及相关变量对风险偏好的影响

采用IAT技术测查被试的内隐自尊, 并引入收益和损失两种任务框架, 综合探讨了内隐自尊水平、任务得失框架对自我决策和为他人决策时风险偏好的影响。结果发现：(1)在收益框架下, 被试为他人决策时更冒险, 而在损失框架下, 为自我和他人决策的风险偏好无显著差异; (2)与为自我决策相比, 低内隐自尊者为他人决策时更冒险, 而高内隐自尊者为自我和他人决策的风险偏好无显著差异; (3)内隐自尊水平与任务框架的交互作用及内隐自尊水平、任务框架和决策者角色之间的三级交互作用均不显著。依据相关的理论和发现对这种结果进行了分析和讨论。     

医疗改革的公众参与问题研究

公众参与有助于增强医疗改革政策制定的透明度和有效性;但如何使公众能真正参与并影响医疗改革是亟需解决的难题.回顾国外卫生政策制定过程中公众参与的实践经验;发现我国医疗改革公众参与需要从协商监督机制建构、直接参与度设计以及价值观建构三方面开展.