Influence of pedestrian-to-vehicle technology on drivers’ response and safety benefits considering pre-crash conditions

Pedestrian-to-vehicle (P2V) technology may offer a promising approach to reducing pedestrian crashes. However, its influences on both driver response and safety benefits have been little studied in previous research, particularly in regard to the variation of influences between different pre-crash scenarios. To investigate these influences, this study designed three pre-crash scenarios based on pedestrian crash contributing factors identified from crash reports, and collected 44 drivers’ driving simulator experiments’ data. The results clarified how using P2V technology to warn drivers of an impending collision improves safety by causing a series of changes for both brake operation and braking profile. These series of changes were further demonstrated to vary between scenarios. The study showed that P2V technology may be particularly useful in scenarios in which a pedestrian’s crossing intention is unclear; specifically, in this type of scenario, the P2V warning had changed the braking process from a panic brake of “slow reaction-hard brake” to a comfortable brake of “quick reaction-gentle brake.” In addition, the P2V warning may be less effective in “low-risk” level scenarios where a driver is confident that he/she can handle the situation through a more conservative evasive action and don’t need to react strongly to a warning. Moreover, depending on the pre-crash scenario, the P2V warning may be mostly beneficial for drivers who had a crash/citation in the past five years and working-aged drivers.     

任务切换中的反应重复效应

在任务重复试次中反应的重复对反应有促进作用,而在任务切换试次中反应的重复对反应有阻碍作用,此现象即为反应重复效应（response repetition effects, RRE）。RRE普遍存在不同任务切换范式中,是一种抽象反应编码重复效应,受刺激效价和一致性、反应编码重复度和准备时间等因素影响。其理论解释主要有重构论、启动-抑制论、以及情境检索说。现有研究初步表明前额叶皮层是RRE的关键脑区,但RRE的认知神经机制及理论解释还有待进一步探讨。     

积极心理治疗模式与发展趋势

积极心理治疗是在跨文化的基础上以冲突为中心的治疗模式,治疗中关注个人实际的和潜在的能力,并借助东方寓言故事哲理,用跨文化的认知观点解释冲突。这种符合人性特点的心理治疗模式,为心理治疗开辟了新的途径,促进了心理治疗的发展。     

制度伦理:建构和谐社会的伦理支撑——论制度伦理与和谐社会伦理生态之共契

制度伦理是对建构和谐社会“良序情结”的一种回应,不管从制度伦理对建构和谐社会的功能助益,甚或二者在理性诉求和终极眷注方面的公度与通约,都可以看出,制度伦理与和谐社会二者之间是一种互构互益性的关系。制度伦理与和谐社会伦理生态之契合还体现了人类社会共同的美学期待。     

Synergistic influences of sensory and central stimuli on non-voluntary rhythmic arm movements

In recent years, neuromodulation of the cervical spinal circuitry has become an area of interest for investigating rhythmogenesis of the human spinal cord and interaction between cervical and lumbosacral circuitries, given the involvement of rhythmic arm muscle activity in many locomotor tasks. We have previously shown that arm muscle vibrostimulation can elicit non-voluntary upper limb oscillations in unloading body conditions. Here we investigated the excitability of the cervical spinal circuitry by applying different peripheral and central stimuli in healthy humans. The rationale for applying combined stimuli is that the efficiency of only one stimulus is generally limited. We found that low-intensity electrical stimulation of the superficial arm median nerve can evoke rhythmic arm movements. Furthermore, the movements were enhanced by additional peripheral stimuli (e.g., arm muscle vibration, head turns or passive rhythmic leg movements). Finally, low-frequency transcranial magnetic stimulation of the motor cortex significantly facilitated rhythmogenesis. The findings are discussed in the general framework of a brain-spinal interface for developing adaptive central pattern generator-modulating therapies.     

人本主义心理学评价新探

本文从宏观上对人本主义心理学提出了新的评价。指出其主要贡献：（1）把人的本性与价值提到了心理学研究的首位;（2）突出人的动机系统与高级需要的重要作用;（3）提出实验客观范式与经验主观范式综合的新构想;（4）促进以人为本的组织管理与教育改革以及心理治疗的发展。根本缺陷：（1）未摆脱自然主义人性论的羁绊;（2）渗透个人本位主义精神;（3）缺乏实证性的检验与支持。     

中国传统医德义利观探新

谈及传统医学道德中的义利观,学界常以重义轻利为内容进行认识和把握,仅以此来理解义利观有失简单。实际上,传统义利观具有较为丰富的内涵,可以从三个方面来把握这些内容。首先是不能贪利忘义,其次是义利并进,最后是舍利取义。这三项内容比较全面地说明了传统义利观的内涵,展现了重义轻利的价值立场。义利观是传统医学道德思想的重要组成部分,完整理解义利观,影响着对传统医学道德整个思想的认识,也是探讨传统医学道德现代价值的一项基础工作。

     

药物不良反应社会成本控制最优化的经济学分析

药物不良反应(adverse drug reaction,ADR)是导致患者住院的常见原因并造成高额的社会成本。由于避免ADR的边际成本是递增的,因此从经济学的角度来看,ADR的发生率不是最小化而是最优化问题,是在成本与效益之间找到最优平衡的问题,本文对ADR发生率的最优平衡点和相关的制度作了探讨。     

多属性决策任务中焦虑型个体的信息加工特点研究

该研究以多属性职业选项为材料,采用计算机化的信息板技术初步考察了焦虑型个体在多属性决策过程中的信息加工特点,结果表明焦虑型个体与非焦虑个体的决策过程有所不同。主要表现在与非焦虑型的决策者相比,焦虑型的被试在决策过程中对职业属性的加工时间更长,加工的信息也更多;在决策前后他们对完成决策任务的信心水平评估都很低,但是在搜索模式上焦虑型的决策者与非焦虑型的决策者没有差别。在研究的讨论部分对焦虑型个体决策过程中信息加工特点的原因进行了分析。     

Paranormal believers are more prone to illusory agency detection than skeptics

It has been hypothesized that illusory agency detection is at the basis of belief in supernatural agents and paranormal beliefs. In the present study a biological motion perception task was used to study illusory agency detection in a group of skeptics and a group of paranormal believers. Participants were required to detect the presence or absence of a human agent in a point-light display. It was found that paranormal believers had a lower perceptual sensitivity than skeptics, which was due to a response bias to ‘yes’ for stimuli in which no agent was present. The relation between paranormal beliefs and illusory agency detection held only for stimuli with low to intermediate ambiguity, but for stimuli with a high number of visual distractors responses of believers and skeptics were at the same level. Furthermore, it was found that illusory agency detection was unrelated to traditional religious belief and belief in witchcraft, whereas paranormal beliefs (i.e. Psi, spiritualism, precognition, superstition) were strongly related to illusory agency detection. These findings qualify the relation between illusory pattern perception and supernatural and paranormal beliefs and suggest that paranormal beliefs are strongly related to agency detection biases.