父母体罚与青少年焦虑抑郁的关系:同伴侵害的中介效应与亲子关系的调节效应

采用问卷法对1406名初中生进行调查,考察了同伴侵害在父母体罚与青少年焦虑抑郁关系间的中介效应,以及亲子关系对这一中介过程的调节效应。结果发现：（1）在控制了性别、年龄、家庭月收入和父母受教育水平后,父母体罚显著正向预测青少年焦虑抑郁;（2）同伴侵害在父母体罚与焦虑抑郁关系间起着显著的完全中介作用;（3）亲子关系对中介路径"父母体罚→同伴侵害→焦虑抑郁"具有显著的调节效应。     

群体内疚:界定、心理机制、行动倾向及干预策略

当个体认为内群体为外群体受到的不道德伤害负有责任时会体验到群体内疚。该情绪常见的触发情境包括过往历史的伤害事件、当下的群际冲突、不公正的社会关系及未来的伤害事件。群体认同、内群体责任和不当性评估是影响群体内疚产生的三大心理机制。群体内疚会导致施害群体对受害群体表现出积极行动,如友善态度,冲突和解、群体补偿及群际支持。通过群体肯定、自我肯定、促进共同认同、强调内群体责任及展现已有补偿行为等干预策略可以引发施害群体的群体内疚。未来的研究应澄清群体内疚的成因机制,进一步探索群体内疚与补偿行为间的作用关系。     

Movement substructures change as a function of practice in children and adults

An experiment is reported in which participants at 6 (n = 20), 9 (n = 20), and 24 years (n = 20) of age either received or did not receive practice on a rapid aiming task using the arm and hand. The purpose of the experiment was to document the changes in movement substructures (in addition to movement time) as a function of practice. After receiving 10 baseline trials, subjects in the practice groups received 30 practice trials followed by 10 retention trials on each of 5 days, while subjects in the no-practice group had only baseline and retention trials. Retention-only trials were divided into primary (reflecting the ballistic controlled part of the movement) and secondary (reflecting corrective movement adjustments) submovements. In addition, jerk (the 3rd derivative of movement displacement) was calculated as an estimate of the smoothness of the movement. Participants increased the primary submovement as a function of practice; however, the increases were substantially larger in the children (25-30%) than in the adults (10%). Participants also decreased jerk as a function of practice and the decreases were greater in children than in adults. The results suggest that with practice the primary submovement is lengthened so that it ends nearer the target, especially in children. Associated with the primary submovement covering a larger percentage of the movement length and time, movements became smoother.     

鬼谷子的测谎心理思想研究

鬼谷子的测谎心理思想其目的在于帮助统治者考察权变、征召远近人才、谋划国家事物、献说陈情、决安危、定亲疏、察同异、辨真伪。其基本依据的是阴阳观。他认为阴阳是宇宙变化的一贯之道,把握了阴阳之道,就获得了开启人内心隐秘的基本原理。其所遵循的原则是：知己知人原则,隐秘性原则,把握时机原则。其具体技术有捭阖术,即根据阴阳变化原理提出的开启和闭藏的技术;钩言术,即通过语言表达的动静状态窥探他人内心情报的方法;飞箝术,是以激励、褒扬的言语诱导对方获得实情而抓住对方心理的一种测谎技术。揣摩术,又分揣术和摩术。揣术是根据情感的两极变化和惯常行为表现推测对方心理真实情报的方法。摩术是指将内在情感与外在符验相结合进行推测、切磋、体会获得对方真实情报的方法。     

Regulatory and ethical principles in research involving children and individuals with developmental disabilities

Children and individuals with developmental disabilities (DD) compared to typical participants are disadvantaged not only by virtue of being vulnerable to risks inherent in research participation but also by the higher likelihood of exclusion from research altogether. Current regulatory and ethical guidelines although necessary for their protection do not sufficiently ensure fair distributive justice. Yet, in view of disproportionately higher burdens of co-occurring physical and mental disorders in individuals with DD, they are better positioned to benefit from research by equitable participation. Greater elucidation of this ethical dilemma is called for by researchers, institutional review boards, and funding agencies to urgently redress the imbalance. This article discusses many of the regulatory principles to ensure better research participation of children and individuals with DD: human rights, validity, distributive justice, beneficence/nonmaleficence, and autonomy.     

走神研究的理论、方法与展望

走神是一种将注意从当前主要任务转移到内部思维的认知现象,具有刺激独立、任务无关、主观自发等特点。其测量方法以主观报告法为主,同时也采用行为实验、电生理技术和认知神经科学等方法。本文重点回顾了走神的二分结构、负面结果和潜在功能等方面的研究成果。然后,在此基础上,从走神的发生机制及其与执行控制的关系角度,介绍了三个理论观点：执行资源假设、控制失败假设和资源控制假设。根据最新研究进展预测,未来对走神概念将会做更细致的区分,并考虑结合元认知监测相关理论进行研究,这不仅可以为学习者提供具体的指导建议,还将进一步加深我们对意识、元认知和注意的理解。     

再生障碍性贫血发病机制认识的发展与启示

再生障碍性贫血的发病机制已经突破了“种子”、“土壤”、“虫子”学说,并沿着“免疫异常”理论进入“自身免疫病”理论。同时这是一个科学思维付诸实践不断探索的过程。大量证据表明再生障碍性贫血是一种自身免疫病,它应该符合自身免疫病的共性,这一认识开阔了人们的视野,使人们能在更高的层面上考察原来的事物。     

Practice Effects on Motor Control in Healthy Seniors and Patients with Mild Cognitive Impairment and Alzheimer's Disease

ABSTRACT

This research was designed to test the hypothesis that motor practice can enhance the capabilities of motor control in healthy controls (NC) and patients with a diagnosis of probable Alzheimer's disease (AD) and mild cognitive impairment (MCI), and consequently results in better motor performance. Approximately half of the subjects in the NC (n = 31), AD (n = 28), and MCI (n = 29) either received or did not receive practice on a task of fast and accurate arm movement with a digitizer. Changes in movement time (MT), movement smoothness (jerk), and percentage of primary submovement (PPS) were recorded and compared among the three groups across six blocks of trials (baseline and five training sessions). For all subjects, practice improved motor functions as reflected by faster and smoother motor execution, as well as a greater proportion of programming control. Compared to unaffected matched controls, AD and MCI subjects exhibited a greater reduction in movement jerk due to practice. Movement time and PPS data revealed that motor practice appeared to reduce the use of “on-line” correction adopted by the AD or MCI patients while performing the aiming movements. Evidently, their arm movements were quicker, smoother, and temporally more consistent than their untrained peers. The findings of this study shed light on how MCI and AD may affect motor control mechanisms, and suggest possible therapeutic interventions aimed at improving motor functioning in these impaired individuals.     

限制性饮食者对食物线索的认知偏向：行为和脑机制的证据

限制饮食是为了控制体重, 长期严格地控制进食的倾向。大量研究表明相对于非限制性饮食者, 限制性饮食者对食物线索尤其是高能量或高美味食物线索存在认知偏向。这种偏向是基于一定的脑神经基础的如前额叶背内侧, 小脑等区域。未来研究应设置严格的筛选标准, 运用视觉odd-one-out和学习-再认实验范式, 重视认知神经机制的探讨, 开展中国限制性饮食者对食物线索加工的认知机制和主要影响因素模型的系统研究。