What is it to “B” a relation?

The purpose of this paper is two fold: first, I look to show Oaklander’s (The ontology of time. New York: Prometheus Books, 2004) theory of time to be false. Second, I show that the only way to salvage the B-theory is via the adopting of the causal theory of time, and allying this to Oaklander’s claim that tense is to be eliminated. I then raise some concerns with the causal theory of time. My conclusion is that, if one adopts eternalism, the unreality of time looks a better option than the B-theory. With thanks to Robin Le Poidevin, Robbie Williams, Andrew McGonigal, Peter Simons, Chris Timpson and an anonymous referee for this journal for comments on a previous draft.     

Age differences in forgivingness: The role of future time perspective

The present study examined age differences in forgivingness, defined as an enduring tendency to forgive others. Building on the theory of socioemotional selectivity, the study aimed at clarifying the role of future time perspective and social proximity on age differences in forgivingness. Older (N = 132) and younger participants (N = 225) were instructed to judge their willingness to forgive as a function of social proximity and future time perspective. Controlling for self-reported future time perspective, results indicate that older adults were more willing to forgive than younger adults. Social proximity did not play a role in older adults, whereas younger adults reported greater forgivingness with respect to a friend as compared to an acquaintance. In addition, results demonstrate that the perception of future time plays an essential role in forgivingness. An age by future time perspective interaction effect was found, suggesting that the effect of limited future time perspective was smaller in older adults than in younger adults. Future directions concerning the meaning and possible implications of age differences in forgivingness are discussed.     

麻醉医生与围手术期患者的人文关怀

围手术期患者紧张、忧郁、焦虑和恐惧等心理反应会对其生理功能产生巨大的不良影响,这对于麻醉和手术极为不利。为了降低围手术期患者心理应激产生的不良影响,同时适应生理-心理-社会医学模式的转变,麻醉医生在围手术期必须对手术患者实施有效的人文关怀。麻醉医生可以在三个阶段对患者实施相应的人文关怀。     

视觉运动Simon效应和认知Simon效应的影响因素及机制

Simon效应是指与反应要求无关的刺激位置和反应位置在同侧时, 个体反应更快更准确的现象。对于Simon效应的产生机制, 大多数研究者认为, 在不同实验情境中获得的Simon效应有共同的产生机制。但是, 越来越多的证据显示, 在刺激形式、排列方式、刺激—反应规则以及反应方式等因素的影响下, 存在两种不同性质的Simon效应, 即视觉运动Simon效应和认知Simon效应。视觉运动Simon效应源于刺激位置自动激活其同侧反应所产生的影响, 认知Simon效应源于转译生成的编码间的相互干扰, 两者分别与背侧通路和腹侧通路的加工有关。     

用文字概率衡量不确定性：特征和问题

文字概率是衡量不确定性的方式之一, 即人们使用诸如“也许”、“未必”的词汇来描述特定事件发生的可能性。文字概率不同于数字概率, 主要体现在文字概率的模糊性、非概率运算性和语义特性上。这使得相对于数字概率, 用文字概率衡量不确定性既有优势也有问题, 进而对人们的不确定信息沟通和风险决策造成影响。虽然文字概率与数字概率存在特征上的差异并且人们在日常交流中偏爱文字概率, 但是大部分风险领域的研究却仅局限于数字概率, 今后有必要研究使用文字概率测量的风险决策。在已有文字概率特征研究的基础上, 还可以进一步探究其不同于数字概率的其它特征(文字/数字概率与双系统模型的联系、文字概率的跨文化差异等)及其对风险决策的影响。     

亚临床型血友病A合并颅脑外伤的围手术期处理2例分析

为了探讨亚临床型血友病A患者合并颅脑外伤行手术治疗时的围手术期处理方法,2例亚临床型血友病A合并颅脑外伤患者术后确诊,在围手术期通过动态的监测血Ⅷ因子活性（FⅧ：C）水平,调整FⅧ输入并维持FⅧ：C在止血水平（30％～50％）,至伤口愈合。结果显示,2例亚临床型血友病A合并颅脑外伤手术患者,术后都得到了及时的恢复。提示亚临床型血友病A合并颅脑外伤患者关键是准确诊断,围手术期要求保持血中凝血因子FⅧ的促凝活性维持在止血水平,直到伤口愈合为止。     

从“疑古”到“走出疑古时代”——《管子·轻重》著作年代研究百年回首

《管子·轻重》是我国古代经济史上的重要文献,其著作年代的研究,是近百年来学界广泛关注的课题之一。上世纪80年代以前,“汉代说”占主流地位;80年代以后特别是90年代以来,学界逐渐倾向于“战国说”。“汉代说”的流行,无疑受到“疑古”思想的影响;近年来“战国说”得到普遍认可,与“走出疑古时代”的学术思潮密切相关。     

Behavioral speed contagion: automatic modulation of movement timing by observation of body movements

To coordinate our actions with those of others, it is crucial to not only choose an appropriate category of action but also to execute it at an appropriate timing. It is widely documented that people tend to unconsciously mimic others' behavior. The present study show that people also tend to modify their movement timing according to others' movements even when the observed and the to-be-executed movements are unrelated. Observers viewed either point-light biological motion, scrambled biological motion, or solid object motion. The stimulus sequence was presented at three different (half, normal, and double) rates. After a 300-2400-ms blank period, the observers performed a simple choice reaction-time task that was unrelated to the presented stimulus sequence. The observation of the biological motion produced a negative correlation between reaction time and stimulus speed, whereas no such trend was observed with the scrambled or solid object motion. Furthermore, speed-dependent modulation occurred only when the task was imposed within approximately 1s after the offset of the biological motion. These results suggest that behavioral tempo may be contagious; the speed of others' movements may automatically influence the timing of movement execution by the observer.     

作业时间和指导语导向对10-12岁儿童发散性思维的影响

研究者以239名10岁、11岁和12岁的儿童为实验对象,采用四种作业时间(2分钟、4分钟、6分钟和8分钟)和两种指导语导向(无导向、导向独特性)为实验条件,考察了这些条件对儿童发散性思维的影响.结果发现,作业时间和指导语导向对儿童发散性思维的流畅性,变通性和独特性均有明显的影响.在该实验条件下,发散性思维的三个指标随作业时间的增加而增加.有导向组儿童的发散性思维作业成绩显著高于无导向组.另外,在各实验条件下,儿童的作业成绩都有随着年龄的增长而上升的趋势.     

Effects of cognitive load presence and duration on driver eye movements and event detection performance

This study examined the effects of cognitive load on driving performance for interactions with an in-vehicle information system (IVIS) that varied in duration from 1 to 4 min. Twelve participants drove in a simulator while intermittently performing the IVIS task. There were three IVIS conditions: interacting with the IVIS, non-IVIS periods between IVIS interactions, and baseline driving without the IVIS task. Contrary to our hypothesis, driver response to lead vehicle braking was surprisingly uniform across IVIS conditions. IVIS interaction did undermine driver ability to detect the bicyclist along the side of the road, and some of these performance decrements persisted after the IVIS interaction had ended. Reaction time for bicyclist detection increased from the first to the subsequent minutes of the interaction. Eye movements were influenced by the IVIS conditions but not by task duration. Both ANOVA and factor analyses revealed that some of the changes in eye movements were concurrent with IVIS interaction while others persisted after the driver completed the IVIS interaction. Overall, the findings suggest that two mechanisms might account for the distraction-related performance decrements in this study: competition for processing resources and interference due to activation of competing goals.