首页 | 本学科首页   官方微博 | 高级检索  
相似文献
 共查询到20条相似文献,搜索用时 0 毫秒
1.
采用事件相关电位(ERP)研究技术,运用剑桥风险任务的实验范式,考察了青少年风险决策的时程加工机制。行为结果表明,在高、中、低三种不确定性条件下,相对于效价,被试的决策更多的关注概率。脑电结果显示:1)不确定性的主效应在N400上表现显著,高不确定条件和中不确定条件的波幅要明显大于低不确定性条件的波幅,而高不确定条件和中不确定条件的波幅无显著差异;2)与中不确定条件相比,高不确定条件和低不确定条件诱发了一个新异正成分(LPC),高不确定条件和低不确定条件的波幅要明显大于中不确定性条件的波幅,而高不确定条件和低不确定条件的波幅无显著差异。青少年在风险任务中的决策较多的是选择安全选项,表现出较为明显的风险规避倾向。N400的波幅可能反映了不确定性程度,而LPC的波幅大小可能反映了结果评价准确性程度的高低。  相似文献   

2.
Regret in Decision Making   总被引:12,自引:0,他引:12  
Decision research has only recently started to take seriously the role of emotions in choices and decisions. Regret is the emotion that has received the most attention. In this article, we sample a number of the initial regret studies from psychology and economics, and trace some of the complexities and contradictions to which they led. We then sketch a new theory, decision justification theory (DJT), which synthesizes several apparently conflicting findings. DJT postulates two core components of decision–related regret, one associated with the (comparative) evaluation of the outcome, the other with the feeling of self–blame for having made a poor choice. We reinterpret several existing studies in DJT terms. We then report some new studies that directly tested (and support) DJT, and propose a number of research issues that follow from this new approach to regret.  相似文献   

3.
当前临床决策的问题及对策   总被引:5,自引:0,他引:5  
随着传统生物医学模式向生物-心理-社会医学模式的转变,临床决策也应由目前以经验医学为主导的经验决策向以循证医学为基础的科学决策转变。  相似文献   

4.
腹主动脉瘤的外科治疗决策   总被引:1,自引:0,他引:1  
腹主动脉瘤破裂是最常见、最凶险的疾病之一。提高对其治疗的临床决策水平至关重要。比较传统开腹修复治疗和血管腔内修复治疗的优缺点,以最佳证据为指导,选出最佳方案应用于临床实践。以人为本,做出科学决策,从而降低医疗费用及提高疗效及患者生活质量。  相似文献   

5.
信息模糊(obfuscation)是行为经济学研究的重要领域,主要解释了在商品买卖过程中,销售商通过把商品信息复杂化等手段,让人们的消费过程变得更加复杂和困难,从而使消费者在购买商品时面对信息模糊做出种种不明智的选择的现象问题。本文从以往的研究成果出发,就信息模糊、有限理性和销售者的决策行为的关系进行了探讨,以期为信息模糊的跨学科研究提供可借鉴的思路和方法。  相似文献   

6.
ABSTRACT— Various psychological models posit the existence of two systems that contribute to decision making. The first system is bottom-up, automatic, intuitive, emotional, and implicit, while the second system is top-down, controlled, deliberative, and explicit. It has become increasingly evident that this dichotomy is both too simplistic and too vague. Here we consider insights gained from a different approach, one that considers the multiple computational demands of the decision-making system in the context of neural mechanisms specialized to accomplish some of that system's more basic functions. The use of explicit computational models has led to (a) identification of core trade-offs imposed by a single-system solution to cognitive problems that are solved by having multiple neural systems, and (b) novel predictions that can be tested empirically and that serve to further refine the models.  相似文献   

7.
多维视野下的临床决策   总被引:1,自引:0,他引:1  
临床决策是临床实践的重要组成部分之一,随着时代和科学技术的发展,临床决策的内涵和方法也发生了深刻的变化。有许多的因素影响或决定临床决策的质量,如何正确处理好循证医学证据与经验、传统方法和现代技术、创新与人文主义精神、技术与费用等关系是一个十分复杂的课题,需要从临床、经济、社会和法律等多方面加以研究和探索。  相似文献   

8.
ABSTRACT— Investigations of decision making have historically been undertaken by different disciplines, each using different techniques and assumptions, and few unifying efforts have been made. Economists have focused on precise mathematical models of normative decision making, psychologists have examined how decisions are actually made based on cognitive constraints, and neuroscientists have concentrated on the detailed operation of neural systems in simple choices. In recent years, however, researchers in these separate fields have joined forces in an attempt to better specify the foundations of decision making. This interdisciplinary effort has begun to use decision theory to guide the search for the neural bases of reward value and predictability. Concurrently, these formal models are beginning to incorporate processes such as social reward and emotion. The combination of these diverse theoretical approaches and methodologies is already yielding significant progress in the construction of more comprehensive decision-making models.  相似文献   

9.
随着循证医学在我国的发展和"医疗举证责任倒置"等相关法律的实施,我国临床医生在进行诊治决策时已逐步向临床科学决策迈进。而防御性医疗、不健全的医疗制度及相关法律等却严重影响着这一科学决策的转变过程。只有有效解决了导致干扰科学决策的各种社会影响因素,如扩大基本医疗保险的覆盖率,实施医疗风险保险制度,提高医务人员认知和职业素质,保障行医安全等,临床科学决策的真正落实就大有希望。  相似文献   

10.
Weighted‐additive (WADD) strategies require decision makers to integrate multiple values weighted by their relevance. From what age can children make choices in line with such a WADD‐strategy? We compare multi‐attribute decisions of children (6–7; 8–10; 11–12‐year‐olds) with adults in an open information‐board environment without pre‐decisional information search. In two experiments, we classify decision strategies based on individual choice patterns and find that in all age groups the majority of participants are users of a WADD‐strategy. Simple decision heuristics such as lexicographic strategies were applied rarely by children and not at all by adults. In two additional follow‐up studies, we further investigate the underlying process of WADD‐application by analysing decision latencies in combination with a retrospective think‐aloud study. Results suggest that children did not apply WADD‐strategies in a deliberate fashion in our experiments. Overall, our findings demonstrate that the ability to make good and quick decisions by holistically integrating information is already present in young children. Copyright © 2017 John Wiley & Sons, Ltd.  相似文献   

11.
Many issues in ethics arise in relation to the contexts in which psychologists work. However, most ethical decision-making models reproduce the way in which psychologists tend to approach ethics by focusing on ethical dilemmas and proposing a step-by-step response to deal with them. Although these models might be useful, their emphasis on reactive approaches and their lack of contextualization constitute significant limitations on their applicability. In this article, an approach to ethical decision making that highlights the importance of the context in developing proactive strategies to solve ethical issues is proposed. This approach is further explained through its application to medical and rural settings. The implications of these suggestions to the training in ethics are finally discussed.  相似文献   

12.
I review the recent case of Edna Folz, a 73 year-old woman who was suffering through the end stages of very advanced Alzheimer's dementia when her case was adjudicated by the Wisconsin Supreme Court. I consider this case as an example of how courts are increasingly misinterpreting the ethical and legal decision-making standards known as substituted judgment and best interests and thereby threatening individuals' treatment decision-making rights as developed by other courts over the past two decades and creating serious roadblocks to health-care providers' ability to render appropriate patient care. The Wisconsin Supreme Court held that Edna's legal guardian could not authorize withdrawal of Edna's treatment, ruling that as a matter of law, if an incompetent person is not in a persistent vegetative state, it is not in his or her best interests for life-sustaining treatment to be withdrawn unless (s)he has executed an advance directive or other statement clearly indicating his or her desires.  相似文献   

13.
本研究用实验室研究方法对 MAU决策辅助对个体和群体决策质量的影响进行了比较研究 ,结果表明 :(1 )使用 MAU决策辅助时 ,群体决策不仅在信息利用上优于个体决策 ,而且在多数心理效标上也占优势 ;(2 )在 MAU方法的利用效率上 ,只在任务较难时 ,群体决策更优于个体决策 ,且群体决策时间明显长于个体决策 ;(3 )不使用 MAU决策辅助时 ,个体决策和群体决策在心理效标上无显著差异 ,但群体决策在信息加工效标上优于个体决策。  相似文献   

14.
决策中的延迟选择行为   总被引:1,自引:0,他引:1  
李晓明  傅小兰 《心理科学》2006,29(1):127-129
延迟选择(choice deferral)指个体在应该作出选择的时候却决定不作选择,包括推迟选择(如选择延迟选项)或拒绝在可选项中选择一个选项。本文首先探讨了影响延迟选择行为的认知因素和情绪因素;随后讨论了当在决策情景中引入延迟选项时,延迟选项对决策者随后情绪体验和决策行为的影响;最后对未来研究进行了展望。  相似文献   

15.
Central to Alex George's work was a concern with the psychology of presidential decision making. Our analysis focuses on George's work at the intersection of leadership psychology and the psychology of judgment in the making of consequential foreign policy decisions, specifically those dealing with issues of war and peace. We begin with a review of the fundamental dilemmas of political decision making, focusing on the various factors that present challenges to leaders seeking to make high-quality decisions. We then move to an analysis of the nature of judgment and the ways in which it both shapes and is shaped by cognitive dynamics and conclude by examining a number of steps designed to help leaders avoid the most damaging blind spots of their own psychologies and cognitive biases.  相似文献   

16.
早期前列腺癌治疗方法多种多样,临床医生根据患者不同的病理分期、分级及身体条件,做出符合患者个体的临床治疗决策,以期在目前条件下达到最佳治疗效果,降低医疗费用及提高生活质量。  相似文献   

17.
规则聚焦对创业决策的影响机制   总被引:1,自引:0,他引:1  
苗青 《应用心理学》2006,12(3):232-238
在创业决策的研究中,决策规则是一个被忽视的问题。研究调查了277名创业者,对被试的四种规则聚焦水平进行了协方差分析和分组回归分析。结果发现,因为规则聚焦的不同,创业决策的效标存在较大差异,且机会识别与创业决策之间的关系存在紧密性、选择性和偶发性三种关联模式。  相似文献   

18.
保护性价值观及其对决策行为的影响   总被引:1,自引:1,他引:0  
保护性价值观(protected values, PVs)是这样的一种观念:它拒绝与其他任何价值相互交易,尤其拒绝与经济价值进行交易[1]。本文对国内外有关保护性价值观及其对决策行为的影响的研究成果进行了详尽考察和评述,在此基础上,进一步提出了管理领域保护性价值观研究的设想。  相似文献   

19.
ABSTRACT— Decision making often occurs in the face of uncertainty about whether one's choices will lead to benefit or harm. The somatic-marker hypothesis is a neurobiological theory of how decisions are made in the face of uncertain outcome. This theory holds that such decisions are aided by emotions, in the form of bodily states, that are elicited during the deliberation of future consequences and that mark different options for behavior as being advantageous or disadvantageous. This process involves an interplay between neural systems that elicit emotional/bodily states and neural systems that map these emotional/bodily states.  相似文献   

20.
泌尿外科老年患者多,老年患者必然手术并发症多,手术死亡率高。虽然现在泌尿外科近70%的手术已进入了微创时代,手术时间大幅缩减,但是老年患者的临床决策仍常常是个非常纠结的问题,手术要达到什么目的?何时要做适当的放弃?除了充分的围手术期准备,医生要敢于承担,家属要充分理解和合作。  相似文献   

设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号