汉字识别的计算机模拟

本文总结了作者近年来在连结主义的理论框架下 ,用计算机模拟汉字识别的工作。文章分三部分。第一部分说明了计算机模拟与人工智能的关系。第二部分介绍了作者提出的两个模型 :汉字识别与命名的连结主义模型和基于语义的词汇判断的计算模型。两个模型分别成功地模拟了汉字识别中的频率效应、形声字读音中的规则效应、声旁效应、语义启动效应、语境与频率的交互作用等。第三部分讨论了模拟工作的意义、分布表征、学习算法等问题。研究表明 :认知的计算机模拟能验证人类认知实验的结果 ,对结果提出合理的解释 ,并能指导进一步的实验研究。     

大学生职业决策自我效能测评的研究

本研究参照Betz和Taylor"职业生涯决策自我效能量表",依据对学生进行的访谈资料和学生开放式问卷调查结果,编制出"大学生职业决策自我效能量表".本研究抽取武汉地区14所大学30个专业1000名毕业年级的大学生作为研究样本,进行正式施测.统计分析结果表明(1)该量表的项目特性良好;(2)该量表都具有较好的内部一致性信度;(3)该量表均具有较强的辨别效度;(4)该量表作为整体判断使用较好.     

决策风格的理论发展及建构：基于信息加工视角

决策风格是人们在决策中表现出来的习惯性或独特的行为模式, 对决策、管理等领域均有重要影响。近年兴起的决策风格理论主要基于个体信息加工策略, 如基于双加工理论和基于后悔情绪的决策风格模型等。决策风格对个体决策的影响表现在决策策略与偏差、情绪和无意识加工等方面。该领域在诸如决策风格的主要理论、测量工具和理论检验等方面亦取得积极进展, 未来研究方向应注意基于双加工理论和进化心理学建构决策风格理论。     

Mindfulness-based stress reduction effects on moral reasoning and decision making

Previous research has demonstrated that mindfulness-based stress reduction (MBSR) improves psychological functioning in multiple domains. However, to date, no studies have examined the effects of MBSR on moral reasoning and decision making. This single group design study examined the effect of MBSR on moral reasoning and ethical decision making, mindfulness, emotion, and well-being. Additionally, we investigated whether there was an association between the amount of meditation practice during MBSR and changes in moral reasoning and ethical decision making, emotions, mindfulness, and well-being. Results indicated that MBSR was associated with improvements in mindful attention, emotion and well-being. Further, amount of meditation practice was associated with greater improvement in mindful attention. Two-month follow-up results showed that, MBSR resulted in improvements in moral reasoning and ethical decision making, mindful attention, emotion, and well-being. This study provides preliminary evidence that MBSR may potentially facilitate moral reasoning and decision making in adults.     

认知闭合需要研究评述

认知闭合需要是个体稳定的认知特征,描述了个体在面对模糊情境时是否愿意系统处理信息的动机。已有研究表明,认知闭合需要对个体的信息处理过程和决策结果有显著的预测能力。总体上说,高认知闭合需要的个体更容易利用启发式进行思考,因此此类个体更容易受到过度归因、首因效应等的影响。虽然大多数的研究表明认知闭合需要是个体稳定的认知特质,但也有研究者发现环境因素如噪音等可以在一定程度上、在短时期内改变个体的认知闭合需要的水平。因此,在相关研究中,认知闭合需要既可以通过量表测量,也可以通过在实验中改变环境噪音和时间压力等方法来操纵。已有的关于认知闭合需要的研究也有不足之处。首先,如何引导高认知闭合者克服匆忙做出决策的动机并采用分析式的方式处理信息和进行决策,目前的相关研究还很少;其次,已有的关于认知闭合的研究大都为实验室研究,因此这些研究的外部效度较低;第三,认知闭合需要在冲突研究领域的应用被忽略了。未来有必要针对这些不足之处进行相应研究     

The anatomy of antagonistic coregulation: Emergent coordination,path dependency,and the interplay of biomechanic parameters in Aikido

Using a video-supported cognitive ethnographic and phenomenological approach, we address the interactively generated dynamic of bouts in Aikido. This “soft” martial art enables a defender to blend with and then redirect an attacker’s aggressive energy so as to break his balance, while preserving an ethos of non-violence, mutuality, and respect. Our analysis explores the skills used to minutely adapt to the opponent, the causal-temporal structure of Aikido, notably the cumulative effect build-up and main decision points in a bout, as well as the perceptual cues from inter-body geometry, timing, and force dynamics that inform decisions. We then contrast different interaction scenarios by focusing on micro-events that shape defensive preferences. For a successful defense, technical modulations or even the preferred technique itself can be selected as the interaction unfolds (“decision-making-in-action”). For a closer look, we analyze the interplay of multiple parameters: flexibility of intention (i.e. early deciding vs. keeping options openlonger), technique (i.e. type of lever or throw), initial body symmetry, step combinations, spacing and timing relative to the attacker, degree of force, as well as possible skill differentials. We describe complex interdependencies between these parameters, which can be balanced in various ways as agents respond to the interaction dynamic.     

Family therapists as front line mental health providers in war-affected regions: using reflecting teams, scaling questions, and family members in a hospital in Central Africa

This paper will illustrate the utilization of systemic family therapy services inside a hospital in a war-affected region of the Central African Republic. Through an international non-governmental organization (NGO), the author, a family therapist, provided counselling supervision and services to hospital staff and patients in an area of open conflict in the northern region of the country. In circumstances of chronic insecurity fuelled by both government and rebel forces, families displaced in this region are vulnerable to numerous health conditions and social problems. Family therapy techniques and ideas were used to work with individuals, couples and families presenting with health and social problems resulting from HIV-TB, infections, chronic malnutrition, acute poisoning and beliefs about sorcery. Case examples illustrate the systems consultation model used with the mental health team in order to expand and promote the sustainability of patient mental healthcare in this underserved region.     

A decision model for steady-state choice in concurrent chains

Grace and McLean (2006) proposed a decision model for acquisition of choice in concurrent chains which assumes that after reinforcement in a terminal link, subjects make a discrimination whether the preceding reinforcer delay was short or long relative to a criterion. Their model was subsequently extended by Christensen and Grace (2008, 2009a, 2009b) to include effects of initial- and terminal-link duration on choice. We show that an expression for steady-state responding can be derived from the decision model, which enables a model for choice that provides an account of archival data that is equal or superior to the contextual choice model (Grace, 1994) and hyperbolic value-added model (Mazur, 2001) in terms of goodness of fit, parsimony, and parameter invariance. The success of the steady-state decision model validates the strategy of understanding acquisition phenomena as a bridge toward explaining choice at the molar level.     

Goal attainment as a resource: The cushion effect in risky choice above a goal

Goals are a ubiquitous part of life and have been shown to change behavior in many domains. This research studied the influence of goal attainment on risky choice behavior. Previous research has shown that goals tend to increase risk‐seeking behavior when potential outcomes fall below a goal. We examined a new problem: Choice behavior when all potential outcomes in a choice set achieve or exceed the goal. Two studies show a “cushion effect” of goal attainment on choice under risk. When all possible outcomes of all options are above a salient and specific goal, decision makers are more likely to choose a risky option over a certain outcome with equal expected value (EV). We hypothesized that the attainment of a goal serves as a cushion that softens the negative emotions associated with receiving a gamble's low outcome. This allows risk taking that would otherwise be unattractive. Copyright © 2009 John Wiley & Sons, Ltd.     

Evaluating advisors: A policy‐capturing study under conditions of complete and missing information

Decision‐makers' relative preferences for various advisor characteristics were investigated in two multilevel policy‐capturing studies. The characteristics under consideration were: advisor expertise, advisor confidence, advisor intentions, and whether that advisor was the sole available source of advice. In Study 1, decision‐makers had access to all relevant information about the advisors. In contrast, some relevant information about the advisors was systematically made unavailable in Study 2, which allowed an investigation of the effect of missing information on decision‐makers' evaluations of advisors. Results from both studies indicated that advisor expertise and intentions were most important in promoting decision‐makers' positive evaluations of advisors, that this effect was even more pronounced under conditions of missing information, and that advisor expertise and intentions also interacted synergistically. Given that expertise and good intentions are determinants of an advisor's trustworthiness, the results highlight the interpersonal nature of advice giving and taking. Copyright © 2009 John Wiley & Sons, Ltd.