Preserved spatial memory over brief intervals in older adults

Two studies compared young and older adults' memory for location information after brief intervals. Experiment 1 found that accuracy of intentional spatial memory for individual locations was similar in young and older participants for set sizes of 3 and 6. Both groups also encoded individual locations in relation to the larger configuration of locations. Experiment 2 showed that like young adults, older adults' latency to respond to a test probe in a letter working memory task was negatively influenced by spatial information that was irrelevant to the task. This interference effect indicated preserved incidental memory for spatial information in older adults. Together, these data suggest that initial encoding of spatial information for relatively small numbers of items is largely preserved in healthy older adults and that representations of spatial information persist over short intervals.     

Improving fairness in coverage decisions: performance expectations for quality improvement

Patients and physicians often perceive the current health care system to be unfair, in part because of the ways in which coverage decisions appear to be made. To address this problem the Ethical Force Program, a collaborative effort to create quality improvement tools for ethics in health care, has developed five content areas specifying ethical criteria for fair health care benefits design and administration. Each content area includes concrete recommendations and measurable expectations for performance improvement, which can be used by those organizations involved in the design and administration of health benefits packages, such as purchasers, health plans, benefits consultants, and practitioner groups.     

Ethical guidelines for use of electronic mail between patients and physicians

This report examines the ethical implications of electronic communication, focusing on the use of electronic mail (e-mail), considers its impact on a previously established patient-physician relationship, and the limitations in using e-mail to create a new patient-physician relationship. In its recommendations, this report offers guidance to physicians who use electronic mail to communicate with patients and online users. These guidelines maintain that e-mail should not be used to establish a patient-physician relationship, but rather to supplement personal encounters. When using e-mail, physicians hold the same ethical responsibilities to their patients as they do during other encounters and that information must be presented in a manner that meets professional standards. The report requires that physicians notify patients of e-mail's inherent limitations and that patients be given the opportunity to accept these limitations prior to the communication of privileged information. Finally, physicians should be aware of privacy and confidentiality concerns when using e-mail to communicate with patients.     

外表真实区别、表征变化和错误信念的任务分析

自20世纪80年代以来,“心理理论”已成为发展心理学的研究热点和最活跃、最多产的领域。为了分析和比较“心理理论”的实验任务,该研究以济南市3所幼儿园中的233名3—6岁儿童为有效被试。进行了“意外转移。和“欺骗外表”两种心理理论实验任务。得出如下主要结论：(1)意外转移任务中内隐错误信念显著难于标准错误信念,易化错误信念与标准错误信念的难度不存在显著差异。(2)欺骗外表任务中外表真实区别难度显著低于表征变化和错误信念。(3)意外转移任务的错误信念显著难于欺骗外表任务的错误信念。     

攻击行为儿童大脑半球某些认知特点的研究

为了解攻击行为儿童大脑两半球的认知活动特点,采用侧视野速示呈现技术,对径“同伴提名量表”筛选的１７名攻南 儿童和１６名正常儿童进行了比较研究。     

整体与部分的关系对汉字的知觉分离影响的研究

采用命名技术探讨了整体与部分的关系对汉字知觉分离的影响。实验一探讨了在由相同构字部件组成的汉字整体中部件从整体中分离出来的情况。结果表明,在由相同构字部件组成的整体中,部件同整体分离的难易与部件数有关,在部件少的整体当中,部件反而更难同整体分离,部件之间结合得更紧密,当命名部件时,整体更难被忽视。实验二探讨了部件从由不同构字部件组成的汉字整体中分离出来的情况,结果表明：（１）部件同整体分离的难易取     

想象空间中物体搜索的方位效应和注意效应

该工作提出,在故事阅读产生的想象场景中,位于其中的观察者对身体四周物体的搜索应分为两个阶段：第一阶段是目标方位的判断,认知加工时间的模式是前后〈后〈左＝右;第二阶段是注意指出目标方位,从而辩别目标物体,认知加工时间的模式是注意点〈注意对面〈注意点左侧＝注意点右侧。     

微生物与人类进化

根据现代分子生物学知识和微生物知识,认为基因重组方式可能是人类进化的一种主要方式;并认为微生物能通过基因重组有效介导自身基因和各种生物基因流向人类;从原核生物到真核生物中广泛存在的转座作用可能是微生物介导的基因重组的一种重要方式;高等生物是由低等生物进化而来的,而微生物是进化上最早最低级的生命体。据此,认为微生物可能在人类进化和物种进化中起到了极其重要的作用,甚至可能是一种源泉的作用。其可能方式是     

肿瘤具有两面性吗

对于患者本身而言,肿瘤往往具有极大的危害性。但是正如砒霜,这昔日毒物品的代表,其提取物三氧化二砷已成功地用来治疗白血病,显示了大自然的一个规律－事物是具有两两性的。那私肿瘤,在其严重影响人类健康的同时,是否也具有可被加以利用的一面呢？初步探讨了这种可能性,并探讨了其应用前景、可能的一些应用领域及注意事项。     

谈生理功能的整体调节方式

面对生理学整体水平研究的挑战,应研究生理功能整体调节方式。这一调节方式的基础是神经内分泌免疫网络,它的特征是依照个体特点的分型。讨论其混沌特性,研究方法及医学的影响。