A Multi‐Factor Account of Degrees of Awareness

In this paper we argue that awareness comes in degrees, and we propose a novel multi‐factor account that spans both subjective experiences and perceptual representations. At the subjective level, we argue that conscious experiences can be degraded by being fragmented, less salient, too generic, or flash‐like. At the representational level, we identify corresponding features of perceptual representations—their availability for working memory, intensity, precision, and stability—and argue that the mechanisms that affect these features are what ultimately modulate the degree of awareness. We conclude the paper by demonstrating why the original interpretations of certain empirical findings that apparently pose problems for our account are, in fact, flawed.     

死亡启动影响自我参照记忆的年龄差异

以往研究表明对死亡不可避免性的认识使人类产生死亡焦虑,并且为了降低该焦虑,年轻人倾向于抑制生理自我加工;然而相比年轻人,老年人对死亡的接受程度更高,并且自我抑制能力减弱。因此本研究采用死亡启动范式,探讨了死亡对自我相关记忆的影响以及可能存在的年龄差异。实验一以大学生为被试,结果发现死亡启动后,个体对自我相关信息的再认率显著低于消极启动后;实验二以老年人为被试,结果发现死亡启动后,个体对自我相关信息的再认率与消极启动后无差异。上述结果说明,死亡启动对自我相关记忆的影响存在年龄差异。在大学生中,死亡启动使个体抑制自我相关信息,而在老年人中该抑制效应并不存在。     

Validation of the Life Role Salience Scale in a South African setting

This study aimed to validate the Life Role Salience Scale (LRSS) in a South African context. Respondents were 300 working adults (72.3% = women; 57.9% = non-white; mean age = 35.12 years, SD = 10.25 years; mostly from the finance sector = 35.6%). Confirmatory factor and exploratory factor analyses were conducted to determine the LRSS’s factor structure and reliability of scores from the scale for the South African sample. Results yielded five factors emerging from the analyses: Homecare role reward value and homecare role commitment; marital role reward value and marital role commitment; occupational role commitment; occupational role value reward; and parental role reward value. The reliability of scores from the LRSS ranged from 0.79 (parental role reward value) to 0.95 (homecare role reward value and homecare role commitment). The LRSS shows validity for research use in South Africa.     

Blame game in private investigation reports: The case of Deloitte examination at Telenor VimpelCom

Business and public organisations hire fraud examiners to conduct private investigations when there is suspicion of misconduct or financial crime. Fraud examiners carry out their investigation based on a mandate. Often, individuals in the organisation are suspects. The blame game hypothesis is concerned with factors that cause blame attribution to some individuals but not to others. In this case study, only executives were blamed who had not disclosed corruption information to a major shareholder and to the chief executive officer.     

Retrieval effort or intention: Which is more important for participants’ classification of involuntary and voluntary memories?

Theories of autobiographical memory distinguish between involuntary and voluntary memories. While involuntary memories are retrieved with no conscious intention and are therefore unexpected, voluntary memories are both intended and expected. Recent research has shown that participants sometimes classify their memories as either involuntary or voluntary based on retrieval effort instead of intention. These findings question whether intention really is the defining difference between these two types of retrieval or whether retrieval effort is also an important determinant. In two experimental studies, we investigated the extent to which participants rely on retrieval effort while classifying their memories as involuntary or voluntary. We created experimental conditions that maximize the probability of one type of retrieval while minimizing the probability of another type. Participants reported autobiographical memories in each condition while the programme registered their retrieval time. They then classified their memories as either voluntary or involuntary and rated all memories on perceived retrieval effort. This gave us four categories of memories: experimentally defined voluntary and involuntary memories with an objective measure of effort (retrieval time) and subjectively classified involuntary and voluntary memories with a subjective measure of effort. This allowed us to investigate the relative contribution of intention and effort to involuntary and voluntary memories. We replicated and extended previous findings by showing that the majority of memories were classified as involuntary independently of whether they were retrieved in the experimentally defined voluntary or involuntary condition. This could indicate that subjective effort is more important than intention for the involuntary–voluntary distinction in contrast with existing theories. We discuss theoretical and methodological implications of this finding.     

Does incident severity influence surveillance by lifeguards in aquatic scenes?

Do lifeguards monitor events according to the level of danger they pose to the patron? This study examined this question by displaying 40 min of video of natural swimming activity to three lifeguards while an eye‐tracker recorded their eye position. In a separate session, those same lifeguards viewed 100 short video clips of some of the incidents that had been presented earlier and they were asked to provide a severity rating (0–7) for each one. The proportion of time that an event was monitored was calculated, and was not consistently predicted by incident severity, physical salience, or incident duration, but by the number of swimmers in the scene. Although this study had an extremely small number of lifeguards and should be treated as exploratory, it suggests that lifeguards may have trouble monitoring incidents they deem severe when they are presented in the context of a busy aquatic scene.     

非目标工作记忆表征下颜色关联和抽象关联的注意捕获和抑制

采用工作记忆—视觉搜索双任务范式,探讨在非目标工作记忆表征下,颜色关联和抽象关联干扰子的注意捕获和抑制现象。实验1结果发现,颜色关联干扰子在快速反应阶段捕获注意,随后被成功抑制;抽象关联干扰子仍能捕获注意。实验2消除知觉凸显后,结果发现颜色关联条件的抑制消失,干扰子重新捕获注意。结果表明,有效抑制策略受不同关联干扰子加工先后顺序的影响,选择性抑制颜色关联干扰子,而颜色特征的凸显有助于抑制策略形成。     

个体近似数量系统与其数学能力之间的关系：发展研究的证据

近似数量系统在个体数学能力的发展中起着重要的作用, 二者之间的关系受到年龄因素的影响。主要表现为, 随着年龄的增长, 相关程度逐渐减弱, 二者之间关系的作用机制可能由基数知识中介转变为多种中介变量的共同作用。未来可采用更严格的实验设计和多种研究方法考察各年龄段儿童近似数量系统与不同数学能力之间关系的发展趋势、因果方向、关键转折点和潜在机制, 以更好地理解近似数量系统在个体数学能力发展中所起的作用。     

多项式加工树模型次序约束的量化分析及其应用

多项式加工树（MPT）模型是一种认知测量模型,能够对潜在认知过程进行测量和检验。已有研究探讨了二链MPT模型次序约束的重新参数化问题,本研究探讨了MPT模型次序约束的量化分析方法并从二链推广到多链,同时归纳出MPT模型参数向量内和参数向量间两参数次序约束量化分析的结论。数据分析结果表明该方法不仅在MPT模型框架下验证了潜在参数次序关系,而且给出了约束的量化指标,为潜在认知测量提供更有意义的解释。     

Plato's Hypothetical Inquiry in the Meno

This paper argues that the hypothesis proposed in the Meno is the proposition ‘virtue is good’ alone, and that its epistemic nature is essentially insecure. It has been an object of huge scholarly debate which other hypothesis Socrates posited with regard to the relationship between virtue and knowledge. This debate is, however, misleading in the sense of making us believe that the hypothesis that virtue is good is regarded as a truism in the light of the process of positing a higher hypothesis described in the Phaedo and the Republic. I argue that the hypothesis in question is presented as a result of the earlier discussion of Meno's third definition of virtue (77b2–79a2), which implies the consequence that morally correct actions are beneficial whether or not accompanied by conventional goods such as wealth and honour. The underlying role of presenting it as a hypothesis is therefore to postpone demonstrating the truth of a controversial thesis which needs a substantial justification. In conclusion, I suggest that Plato's real intention in introducing the method of hypothesis in the dialogue is not to answer the original question but to lead Meno to seek for knowledge.