多面Rasch模型理论及其在结构化面试中的应用

针对影响面试效度的各种误差来源,该文引入了一种新颖的面试结果处理方法：多面Rasch模型。这一模型在结构化面试中的应用不但有利于有效测量被试的能力水平,而且为识别问题评委、进一步完善评分规则、实现面试等值等问题都提供了全新的解决思路。文章在对结构化面试信、效度研究进展进行综述的基础上,介绍了多面Rasch模型的理论及其在结构化面试中的应用框架。     

公平与效率的辩证结合:中国社会发展的价值选择

公平与效率是社会发展中的基本矛盾,二者的结合机制反映了不同社会的发展特征及其基本价值取向。资本主义以资本增值为根本逻辑,坚持以物（资本）为中心的社会发展理念,形成了公平与效率的尖锐对立;社会主义坚持以人为中心的社会发展理念,能在社会发展中历史地实现公平与效率的辩证结合。中国在改革开放的探索中,在处理公平与效率的关系上不断进行调整,这既反映了中国社会发展观随着历史发展而不断进行的变革,更折射和体现了中国社会发展的根本价值选择。     

生命史理论概述及其与社会心理学的结合——以道德行为为例

生命史理论作为进化心理学的代表性理论之一, 同时关注了环境因素和个体经验, 是社会心理与个人心理的有机结合, 但是该理论目前在社会心理学领域得到的关注还相当有限。因此该理论具体的建立、发展过程, 主要理论观点, 以及主要测量方法、测量工具都需要进行详细的梳理和介绍, 以便于研究者对其有较为全面的理解。此外, 结合社会心理学的重要研究主题--道德行为, 可以发现不同生命史策略在个体的亲社会行为、不道德／暴力犯罪行为上可能有不同的表现, 并且控制感、安全感和调节定向理论都会是其可能的影响机制。因此在未来的研究中, 应该将生命史理论在社会心理学领域进行更广泛的应用, 为社会心理学研究者提供一个分析道德行为的新视角。     

出声阅读和默读之间的差异

阅读有两种基本模式：默读和出声阅读。文章从三个方面总结了两种阅读模式差异的研究成果：(1)不同阅读模式下阅读的行为差异; (2)不同阅读模式下阅读的认知机制差异; (3)不同阅读模式下阅读的脑机制差异。在此基础上, 文章提出了未来研究需要解决的问题：(1)出声阅读向默读转变的具体阶段; (2)两种阅读模式发展过程中眼动行为的差异; (3)语音和背景音乐对两种阅读模式下阅读的影响; (4)两种阅读模式下儿童的脑机制差异等。     

视知觉无意识加工中的形状优势效应

研究了视知觉无意识加工中是否存在形状优势效应。被试为天津师范大学本科生60名。仪器为pentium lll高分辨率计算机．程序用E-prime心理实验软件系统编制而成。在实验1中,用信号检测论技术发现．当启动图形呈现时间为20ms时．被试是不能觉知到该图形的。在实验2和3中．被试的任务分别是判断图形的形状和颜色,用MANOVA分析启动图形对靶图形的启动效应时发现．启动图形的颜色线索不会影响靶图形的形状判断,但启动图形的形状线索却能抑制或促进靶图形的颜色判断。实验证据提示．在判断物体整体特征时,无意识知觉具有形状优势效应。     

Estimated Risk of Developing Selected DSM-IV Disorders Among 5-Year-Old Children with Prenatal Cocaine Exposure

We estimated childhood risk of developing selected DSM-IV Disorders, including Attention-Deficit Hyperactivity Disorder (ADHD), Oppositional Defiant Disorder (ODD), and Separation Anxiety Disorder (SAD), in children with prenatal cocaine exposure (PCE). Children were enrolled prospectively at birth (n = 476) with prenatal drug exposures documented by maternal interview, urine and meconium assays. Study participants included 400 African-American children from the birth cohort, 208 cocaine-exposed (CE) and 192 non-cocaine-exposed (NCE), who attended a 5-year follow-up assessment and whose caregiver completed the Computerized Diagnostic Interview Schedule for Children. Under a generalized linear model (logistic link), Fisher’s exact methods were used to estimate the PCE-associated relative risk (RR) of these disorders. Our results indicated a modest but statistically robust elevation of ADHD risk associated with increasing levels of PCE (p < 0.05). Binary comparison of CE versus NCE children indicated no PCE-associated RR. Estimated cumulative incidence proportions among CE children were 2.9% for ADHD (vs 3.1% NCE); 1.4% for SAD (vs 1.6% NCE); and 4.3% for ODD (vs 6.8% NCE). Our findings suggest evidence of increased risk of ADHD (but not ODD or SAD) in relation to an increasing gradient of PCE during gestation.     

经皮迷走神经刺激对抑制控制的调节机制

近年众多研究表明,经皮迷走神经刺激(tVNS)作为一种新型、非侵入式的神经调控技术对个体的抑制控制功能具有积极的调节作用。已有研究发现, tVNS对抑制控制的调节作用可能是通过调控蓝斑核-去甲肾上腺素系统(LC-NE)的活动和神经递质GABA的浓度来实现的。然而,目前对tVNS调控抑制控制的神经机制仍存在诸多尚未明确的问题。未来研究在进一步优化tVNS的刺激参数后,可以从tVNS对抑制控制能力受损群体的调控作用及机制、如何实现和增强tVNS长期积极效应等方面进行深入探索。     

In vitro reinforcement of hippocampal bursting: a search for Skinner's atoms of behavior.

A novel "in vitro reinforcement" paradigm was used to investigate Skinner's (1953) hypotheses (a) that operant behavior is made up of infinitesimal "response elements" or "behavioral atoms" and (b) that these very small units, and not whole responses, are the functional units of reinforcement. Our tests are based on the assumption that behavioral atoms may plausibly be represented at the neural level by individual cellular responses. As a first approach, we attempted to reinforce the bursting responses of hippocampal units in a highly reduced brain-slice preparation with local micropressure applications of behaviorally reinforcing dopaminergic drugs. The same injections were administered independently of bursting to provide a "noncontingent" control for nonspecific stimulation or facilitation of firing. It was found that the bursting responses of individual CA1 pyramidal neurons may be progressively facilitated in a dose-related manner by response-contingent (but not noncontingent) injections of dopamine itself, the dopamine D1-preferring agonist SKF 82958, the D3-preferring agonist quinpirole, and the D2-like selective agonist (+)-4-propyl-9 hydroxynapthoxazine. These findings support the conclusion that unit bursting responses can be reinforced in vitro in hippocampal slices, and they further suggest that the same dopamine receptor subtypes are involved in both cellular and behavioral operant conditioning. The results thus provide indirect support for Skinner's atoms-of-behavior hypothesis.     

肿瘤治疗模式的哲学思考

外科手术往往是肿瘤治疗的首选方法,对于不能手术或已丧失手术机会者才考虑放疗,化疗。近年来,出现了诱导分化和凋亡等治疗手段,且在某些肿瘤的治疗上已取得了可喜的效果,这点新概念,新手术的出现,使得以往的肿瘤治疗模式受到了冲击,从以人为本,预防为主的哲学思想出发,我们似科可以提出这样的肿瘤治疗模式,诱导分化→启动凋亡→手术,放疗,化疗。     

正常和弱视者立体和形状视觉感知时间的差异

在速示器,以随机点立体图对为刺激,测量了正常和弱视者的立体视和形状视感知时间。实验表明:正常被试需要大约100ms感知深度,110ms或更长时间感知形状。这二种感知时间与刺激视差的种类和大小无关。弱视者需要比正常人较长的时间达到立体和形状的视感知。这二种感知时间的差别,弱视者也大于正常人。视锐度和立体视范围均恢复到正常的弱视者,以上二种感知时间,可以达到正常人范围,也可能显著地大于正常人。