风险取向类型与爱荷华赌博任务成绩的影响

神经科学领域的研究者们设计了测量情感决策的经典爱荷华赌博任务并提出了体细胞标记假说来解释其研究结果,但迄今为止这一假说还没有得到一致认可。许多研究提出了可能影响爱荷华赌博任务成绩的其他因素。本研究试图在前人研究的基础上采用实验法探讨风险取向类型这一人格因素是否影响正常个体的爱荷华赌博任务成绩。实验结果显示,不同风险取向类型的个体在爱荷华赌博任务中的成绩和表现截然不同。典型风险趋向型个体在爱荷华赌博任务中的表现类似于某些神经系统患者,倾向于更多地选择不利纸牌,其任务成绩显著差于典型风险回避型个体。这一研究结果表明：风险取向类型是影响正常个体爱荷华赌博任务成绩的重要因素之一。     

Hypothesis testing as risk behaviour with regard to beliefs

In this paper hypothesis‐testing behaviour is compared to risk‐taking behaviour. It is proposed that choosing a suitable test for a given hypothesis requires making a preposterior analysis of two aspects of such a test: the probability of obtaining supporting evidence and the evidential value of this evidence. This consideration resembles the one a gambler makes when choosing among bets, each having a probability of winning and an amount to be won. A confirmatory testing strategy can be defined within this framework as a strategy directed at maximizing either the probability or the value of a confirming outcome. Previous theories on testing behaviour have focused on the human tendency to maximize the probability of a confirming outcome. In this paper, two experiments are presented in which participants tend to maximize the confirming value of the test outcome. Motivational factors enhance this tendency dependent on the context of the testing situation. Both this result and the framework are discussed in relation to other studies in the field of testing behaviour. Copyright © 2000 John Wiley & Sons, Ltd.     

成就动机和性别对风险倾向的预测作用

研究通过对等同绝对值(CE)的比较将冒险倾向转换为可以量化比较的变量,旨在探讨成就动机和性别在经济获益和损失的各种概率情景下对冒险倾向的预测作用。结果发现,高低成就动机组并没有表现出冒险倾向的显著差异。进一步的相关分析发现,成就动机中的回避失败维度与获益情景下的冒险倾向相关显著,而追求成功维度与各个情景下的相关都不显著。以回避失败维度聚类得到的高低回避失败组,体现出来的冒险倾向趋势显示高回避失败组的被试在获益低概率、获益中等概率、获益高概率、损失低概率、损失中等概率和损失高概率6种情景下都更加回避冒险,而且两组等同绝对值中位数的差异在获益中等概率和获益高概率两种情况下达到显著。另外,冒险倾向的性别差异只在损失中等概率和损失高概率两种情景中达到显著,这两种情况下都是女性更冒险,这与传统的女性更保守的刻板印象不同。     

Probing the link between narcissism and gambling: the mediating role of judgment and decision‐making biases

In this paper, three studies link narcissism to gambling in general, and gambling‐related problems in particular, and the predictive link is shown to be mediated by judgment and decision processes. In Study 1, we demonstrate that narcissism relates to greater self‐reported gambling frequency and gambling‐related monetary expenditures in two samples. We extend these initial findings in Study 2 by showing that narcissism predicts higher reports of gambling‐related pathology, as measured with a DSM‐IV‐based pathological gambling (PG) screen. Finally, we demonstrate in Study 3 that the link between gambling pathology and narcissism is partially mediated by narcissists' overconfidence, heightened risk acceptance, and myopic focus on reward, as measured by participants' behavioral performance on the Georgia Gambling Task (GGT) and Iowa Gambling Task (IGT). Discussion focuses on the empirical validation of the long‐assumed narcissism–gambling link, the decision processes that underlie this link, and relations between narcissists' self‐perceptions and their self‐defeating behavior, especially in risk‐relevant contexts. Copyright © 2007 John Wiley & Sons, Ltd.     

Path analysis of variables affecting 36-month outcome in a population of multi-risk children

Path analysis was employed with data collected during a longitudinal neuro-behavioral follow-up study of multi-risk children. The relative impact of maternal medical history, drug abuse, and day-to-day functioning during pregnancy on the course of labor and delivery and on neonatal outcome was examined. The subsequent impact of each of these sets of variables on the child's developmental status at 36 months was then explored. An additional factor, which incorporated postnatal environmental and family functioning characteristics, was also included in the model. Maternal drug abuse had a significant effect on the course of labor and delivery, due in part to the impact of maternal drug abuse on family functioning. The results indicate that in this multi-risk population, environmental and psychosocial variables are important predictors of the child's developmental prospects.     

Capital sentencing and neuropsychiatry

The neuropsychiatric contribution to capital sentencing proceedings has grown substantially in recent decades as the consideration of neurological and psychiatric factors in criminal behavior has been increasingly accepted as relevant to the quest for justice. This review article will focus on the legal theories underlying neuropsychiatric input into capital sentencing decisions, as well as some of the investigative techniques and resulting data which may be offered by forensic neuropsychiatrists in this context. The death penalty is unique in its severity and irreversibility, as the courts, including the U.S. Supreme Court, have noted repeatedly. “Death is different,” and the recognition of this has generated a set of court decisions and statutes pertinent specifically to capital proceedings, both procedural and substantive.     

Assessing Violence Risk Among Female IPV Perpetrators: An Examination of the B-SAFER

Intimate partner violence (IPV) is a global problem and one in which frontline assessment and management falls primarily to police. Although IPV is often conceptualized as a male-perpetrated crime, evidence substantiates female IPV perpetration and increased arrest rates, raising important issues for police. This article examines police use of the Brief Spousal Assault Form for the Evaluation of Risk (B-SAFER; Kropp, Hart, & Belfrage, 2005, 2010), a violence risk assessment tool for IPV. The B-SAFER was used to assess and manage 52 women arrested for IPV. When compared to Belfrage and Strand (2008), who examined men arrested for IPV in the same sample, women possessed fewer risk factors. Risk factors were related to summary risk judgments, although differences existed between genders and risk judgments were not related to management recommendations. Results suggest that risk factors, in addition to those in the B-SAFER, are required to assess risk for female IPV.     

ICU谵妄的预防：早期活动

ICU谵妄发生率高、识别率低,可显著延长ICU平均住院时间、增加病死率、加重转出ICU后认知功能障碍.但目前缺乏有效的谵妄预防措施.综合干预措施可降低谵妄的发生,其中早期活动是治疗的关键.ICU早期活动安全可行,可降低谵妄的发生及缩短谵妄的持续时间,改善患者预后.ICU中开展早期活动治疗是基于＆quot;ABCDE＆quot;集束化干预措施的前提下,中断镇静后尽早开始肢体功能锻炼和职业治疗,包括从先被动后主动的关节活动,到双腿下垂坐到床缘,进一步下床坐到轮椅上甚至步行活动,是早期活动的基本流程.     

风险知觉研究的历史回顾与展望

风险知觉是指人对潜伏于环境中的危险的主观评定方式或评定值,以“不确定性”为本质特征。在对心理学领域中关于风险知觉研究的三个历史阶段进行回顾的基础上,介绍了不同时期风险知觉的研究内容和研究方法,指出已往研究在风险值评定和危险源识别等方面存在的问题,从理论、测量、扩展三方面对今后的研究进行了展望。     

情绪对成就动机与风险决策关系的调节效应

本研究在验证成就动机对风险决策倾向的预测作用的基础上,进一步探索情绪在成就动机和风险决策关系中的调节效应。通过对三所学校随机抽取的150名被试进行筛选,采用成就动机量表和自编风险决策任务问卷等对120名有效被试实施问卷调查。结果发现：情绪启动使大学生风险决策行为产生一致性效应,即心境一致性;情绪在成就动机和风险决策中起到了一定的调节作用,无论是高成就动机者还是低成就动机者,在愉悦情绪下都表现出更多的风险寻求倾向,并达到了极其显著的水平,而在悲伤情绪下,低成就动机者表现出更多的风险规避,高成就动机者的风险规避倾向虽有所增加,但并未达到显著水平。