批判精神下否定的意识形态概念——评乔治·拉伦对马克思意识形态概念的解读

意识形态问题是一个现实性很强而又敏感的理论课题.马克思被普遍认为是在意识形态概念史上提供了最丰富理论成果的作家[1],但关于马克思意识形态概念的内涵学术界长期以来聚讼不已.他山之石,可以攻玉,英国学者乔治·拉伦的<马克思主义与意识形态>一书对马克思主义意识形态领域的演变与发展进行了广泛和深入的研究,特别是第一章对马克思意识形态概念的辨析,对我们当前的研究有重要的启发和借鉴意义.     

论遗传咨询和保健服务的科技保障与伦理优先

就遗传咨询服务及相关保健服务过程中涉及到的科技保障与伦理优先的问题进行了讨论。对在遗传咨询服务和产前诊断技术服务中的有关伦理问题提出了一些见解。认为,科技保障是遗传咨询和相关保健服务的基础,而伦理优先则是传咨询和相关保健服务的道德规范。只有在符合道德规范前提下的技术服务,才是真正科学的技术服务。     

海洛因成瘾者的脑灰质密度下降

本研究对海洛因成瘾者（n=34）和无毒品依赖的正常被试（n=34）进行磁共振脑结构扫描,用基于体素的形态学测量（VBM）方法分析被试间灰质密度的差异,并考察了海洛因成瘾者用药时间与灰质密度之间的关系。结果表明,同正常对照组相比,海洛因成瘾者其额叶和颞叶下部的灰质密度显著下降。进一步分析显示,用药时间短于5年的成瘾者其灰质密度下降不明显,而用药时间5年以上的患者其灰质密度下降非常显著。本文讨论了上述结果的潜在临床价值和理论意义。     

Perturbation Selection and Local Influence Analysis for Nonlinear Structural Equation Model

Local influence analysis is an important statistical method for studying the sensitivity of a proposed model to model inputs. One of its important issues is related to the appropriate choice of a perturbation vector. In this paper, we develop a general method to select an appropriate perturbation vector and a second-order local influence measure to address this issue in the context of latent variable models. An application to nonlinear structural equation models is considered. Six perturbation schemes are investigated, including three schemes under which simultaneous perturbations are made on components of latent vectors to assess the influence of these components and pinpoint the influential ones. The proposed procedure is illustrated by artificial examples and a simulation study as well as a real example.     

Gray matter density negatively correlates with duration of heroin use in young lifetime heroin-dependent individuals

Numerous studies have documented cognitive impairments and hypoactivity in the prefrontal and anterior cingulate cortices in drug users. However, the relationships between opiate dependence and brain structure changes in heroin users are largely unknown. In the present study, we measured the density of gray matter (DGM) with voxel-based morphometry in 30 lifetime heroin-dependent individuals who had abstained from drug use for 5 months, and 34 healthy participants. The DGM of the prefrontal, temporal and cingulate cortices significantly decreased in heroin addicts relative to the healthy group. Critically, partial correlation analysis, which controlled for age, education and gender factors as well as nicotine use and heroin abstinence duration, showed that the duration of heroin use negatively correlated with the DGM in heroin-dependent individuals. These results provide compelling evidence for structural abnormality in heroin-dependent individuals and further suggest that duration of heroin use is a critical factor leading to brain damage.     

初中生假想观众、个人神话与其互联网社交的关系

采用问卷法,以初中生为被试(n=372),探讨了假想观众、个人神话观念、互联网社交服务使用偏好和病理性互联网使用之间的关系。结果表明在初中阶段:(1)互联网社交服务使用偏好和病理性互联网使用水平随着年级升高而呈直线上升的趋势;(2)互联网社交服务使用偏好可以直接正向预测其病理性互联网使用;(3)假想观众观念对于病理性互联网使用也有显著的直接预测作用;(4)假想观众和个人神话中的无懈可击成分通过对互联网社交使用的喜好间接预测病理性互联网使用水平。     

焦虑梦的运作机制研究

综合以往的释梦理论,结合具体案例,对焦虑梦的运作机制进行了探讨,并提出一种结构化的释梦方法.研究结论:焦虑梦的梦境是由多个相似焦虑事件的记忆元素建构而成,并由梦者睡前所体验的"半成功"地压抑了的焦虑感受所触发.通过对构成梦境的记忆元素进行分析整理,能发现做梦者在做梦前一段时期内比较重要的、重复出现的焦虑主题,从而为心理咨询与治疗提供线索.     

论当代医学异化与医学人化

从哲学的深层次看,医学异化的本质是对人性的背离,是一种异己性力量和一种价值危机,它造成医学与人文、医学科学的真与善的分离,导致"人"的失落.医学人化主要是指医学人文化、人性化、人道化,是对医学异化的克服和抛弃.在医学领域,必须从医学异化走向医学人化,从而实现真正的人的医学.     

探索性因素分析、目标旋转与因素结构的一致性

在因素结构水平上评估跨群体的一致性是在心理学研究中常常遇见的一个问题,对此问题的解答,可以选择探索性因素分析→目标旋转→一致性评估这一途径。本文首先介绍正交目标旋转的简单原理,然后介绍其在心理研究中的应用以及相关软件和程序。目标旋转之后,结构一致性的量化可以采用一致性系数等指标,这些指标可采用一定的实证分布、近似处理或经验标准进行统计检验。之后采用一项实证数据,演示探索性因素分析、目标旋转以及结构一致性的评估方法。     

Semantic and Syntactic Associations During Word Search Modulate the Relationship Between Attention and Subsequent Memory

Two experiments were conducted to investigate how linguistic information influences attention allocation in visual search and memory for words. In Experiment 1, participants searched for the synonym of a cue word among five words. The distractors included one antonym and three unrelated words. In Experiment 2, participants were asked to judge whether the five words presented on the screen comprise a valid sentence. The relationships among words were sentential, semantically related or unrelated. A memory recognition task followed. Results in both experiments showed that linguistically related words produced better memory performance. We also found that there were significant interactions between linguistic relation conditions and memorization on eye-movement measures, indicating that good memory for words relied on frequent and long fixations during search in the unrelated condition but to a much lesser extent in linguistically related conditions. We conclude that semantic and syntactic associations attenuate the link between overt attention allocation and subsequent memory performance, suggesting that linguistic relatedness can somewhat compensate for a relative lack of attention during word search.