供给诱导需求研究综述

主要从概念界定、研究方法、解释假说与理论模型以及主要研究结论等方面对供给诱导需求的相关研究进行综述。虽然国外学者对供给诱导需求进行了大量研究,但是在理论和实证研究方面,还没有形成一致意见。尽管如此,借鉴国外的研究方法和结论,针对我国医疗卫生体制中的供给诱导需求问题进行研究将具有重要意义。     

经颅直流电刺激在注意缺陷多动障碍治疗中的应用

经颅直流电刺激(tDCS)治疗注意缺陷多动障碍(ADHD)主要是选取患者的背外侧前额叶(DLPFC)作为刺激区域, 通过调节其皮层兴奋性, 从而缓解其ADHD的症状和改善其受损的认知功能。针对tDCS在ADHD治疗研究中的问题, 未来可从有效性、确定最佳刺激参数、个体差异、不同亚型及与其他疗法联合使用等五个方面来进一步研究。     

催产素对社会决策行为的影响

大量的研究已经证明催产素对人类社会决策起着重要的调节作用。以往研究者采用多种实验范式用于探讨催产素对社会决策的影响, 研究内容主要包括合作与保护行为、道德行为、信任行为和慷慨行为。研究者已提出三种关于催产素的可能的作用机制用来解释观察到的实验结果, 三种理论各有侧重。未来的研究中应关注鼻喷催产素和受体基因多态性等生理机制、并考虑催产素影响社会决策行为的性别差异、建立更完善并可供检验的理论模型。     

5·12地震前后灾区大学生生命价值观比较

采用自编大学生生命价值观问卷（LVS）分别三次对灾区大学生进行测试：5·12地震前1年、震后2周、震后5个月。结果表明:（1）自编的大学生生命价值观问卷（LVS）包括存在价值、目标价值、规则价值三个维度,探索性与验证性因素分析证明问卷具有良好的信效度。（2）在LVS总分和其存在价值维度上,震后2周得分均高于震前1年和震后5个月。（3）在存在价值取向维度上,女生震后2周和震后5个月得分显著高于男生;理科生震后2周得分高于震后5个月和震前1年,理科生震后2周得分显著高于文科生。（4）在规则价值取向维度上,文科生震后2周得分显著低于震后5个月,文科生震后2周得分显著低于理科生     

心理治疗的循证实践与循效施治

循证实践与循效施治是当前国外心理治疗的两种相互补充的模式,二者在理论假设、获取证据的来源、操作流程等方面存在着明显不同。从影响来看,循证实践的影响力超过了循效施治,它被美国提升推广为一种心理学运动,它的倡导昭示着目前临床心理治疗的一个关键性改革。然而,在心理治疗中要真正实施循证实践存在着很多困难和挑战,循效施治是解决这些困难和问题的方法之一。我国心理治疗的专业化水平不高,藉美国心理治疗循证实践提供的理念和方法去思考中国心理治疗的问题,我们亦可获得有益于中国心理治疗发展的思路。     

Predictors of Cancer Worry in Unaffected Women from High Risk Breast Cancer Families: Risk Perception is not the Primary Issue

Some women at increased familial risk of breast cancer experience elevated levels of cancer-specific worry, which can possibly act as a barrier to screening, and may be a significant factor in decisions regarding risk-reducing surgery. The aim of this study was to comprehensively examine predictors of cancer-specific worry in high risk women and to test a model which proposes that perceived breast cancer risk mediates the impact of other factors on worry. 1,437 unaffected women from high risk breast cancer families completed questionnaires and interviews. Path analysis was used to test the model of potential predictors of cancer worry, including familial, personal and psychological variables, mediated via perceived cancer risk. Levels of cancer-specific worry were generally low despite an average perceived risk of 50.3%. The goodness-of-fit of the proposed model was poor, explaining only 9% of the variance for perceived risk and 10% of the variance for cancer specific worry. An alternative model of a direct relationship between all of the predictor variables and cancer worry, explained 24% of the variation in cancer worry. General anxiety, perceived risk, the stressful impact of recent cancer related events, a relative risk greater than 10, being closer in age to the youngest breast cancer diagnosis in family, and knowledge of personal mutation status, all independently contributed to cancer worry. Addressing general affective responses, experiences of recent cancer related events, in addition to education about personal risk, should be considered in counselling women with elevated cancer worry. Risk perception appears to act independently of other factors in its formulation and impact on cancer worry. Further research on the way in which women come to perceive their risk is indicated. The kConFab Psychosocial Group are (in alphabetical order of institution): Brain and Mind Institute, University of Sydney, Australia (I Hickie) Department of Haematology and Medical Oncology, Peter MacCallum Cancer Centre, Melbourne, Australia (K-A Phillips) Department of Medical Oncology, Prince of Wales Hospital, Randwick, Australia (B Bennett, B Meiser, K Tucker) Department of Oncology, St Vincent’s Hospital, Melbourne, Australia (S-A MaLachlan) Department of Psychological Medicine, Royal North Shore Hospital, St Leonards, Australia (C Tennant); Medical Psychology Research Unit, University of Sydney, Australia (P Butow, M Price).     

Opinions of personality disorder experts regarding the DSM-IV personality disorders classification system

OBJECTIVE: To survey the opinions of personality disorder (PD) experts on possible revisions in the classification system for PDs in the DSM-V. METHOD: Four hundred members of two international associations, the Association for Research on Personality Disorders, and the International Society for the Study of Personality Disorders, were asked to take a 78-item web survey. RESULTS: Of the experts who completed the survey (N = 96), 74% felt that the DSM-IV's categorical system of PD diagnosis should be replaced. Eighty percent felt that PDs are better conceived of as personality dimensions or illness spectra, than as categories. The most frequently endorsed alternative system for PDs was a mixed system of categories and dimensions. Most experts preferred the PDs to remain on Axis II. Only 31.3% wanted the term, "Borderline Personality Disorder," retained in the DSM-V. CONCLUSIONS: A clear majority of the PD experts were dissatisfied with the current diagnostic system for PDs.     

强化降脂治疗的理性思考

他汀类药物因具有丰富的循征医学证据而成为一种不可缺少的预防和治疗冠状动脉粥样硬化性心脏病的降脂药物。近年来对高危患者提出强化降脂的概念,然而大剂量的他汀类药物的使用可能伴随着更多副作用及低效价比等问题。因此辨证地对待强化降脂的治疗策略是必要的。     

标量计时模型中的神经机制

标量计时模型中各阶段的神经机制有重叠也有分离。从当今认知神经科学的研究结果看,与内部时钟有关的神经结构有小脑、基底神经节、前额皮质、前运动辅助皮质及顶叶下回皮质等;与记忆阶段有关的神经结构有基底神经节、背外侧前额皮质、右侧额下皮质及外侧前运动皮质等;与决策阶段有关的神经结构有背外侧前额皮质、前扣带回、高级颞叶皮质和基底神经节等。文章还从神经机制角度论证了计时的标量特性,讨论了今后研究值得注意的三个问题,即研究结果的确定性、研究手段的局限性以及该模型的适用性     

读心的比较研究：非人灵长类与人类在心理理论上的异同点及其解释

利用非人灵长类开展比较研究是探索心理理论本质、起源和进化动因的重要途经。大量实证研究显示非人灵长类可以表现出一些基础心理理论成分,包括联合注意、意图理解和一级观点采择,这表明心理理论在灵长类动物的进化谱系中具有进化连续性。然而,非人灵长类无法像人类一样达成二级观点采择和错误信念理解,潜心智化假说、替代表征假说、最小限度心理理论假说和意识关系假说试图对此差异进行解释。尽管视角与具体内容不同,但这些假说都强调,非人灵长类无法对其他个体关于外部世界的心理信念形成表征,信念表征是非人灵长类与人类读心能力的重要分界点。未来研究需要重点澄清共享意图、语言机制以及社会生态环境因素与心理理论产生的相互影响作用。