预期记忆及其老化研究

预期记忆是与追溯记忆相对的一类独特记忆，即当没有直接的外部提示时，在未来特定条件下从事先前计划好的活动的记忆，可以是习惯性的或情节性的、单活动的或双活动的、时间性的或事件性的。解释预期记忆老化的理论主要有自启层次理论、任务类型理论和加工关系理论。研究预期记忆，有助于全面认识人类的记忆，特别是记忆老化的机制，有助于切实提高个体应对生活的适应能力。     

佛罗伦萨游记

佛罗伦萨的旧译名是"翡冷翠",如徐志摩的《翡冷翠一夜》,说的也就是佛罗伦萨。"翡冷翠",在意大利语中意为"鲜花之城"。虽然看上去略有些匪夷所思,但是这个精致、美丽的名字倒颇让人有些幻想。在美丽的佛罗伦萨,有着怎样美妙的游记?跟随作者,我们一起出发咯!     

THE KNOWLEDGE OF MEMORY AGING QUESTIONNAIRE

A new questionnaire, the Knowledge of Memory Aging Questionnaire, assesses general knowledge of normal and pathological memory aging for use with students, older adults, and service providers who work with the elderly. The questionnaire consists of 28 true/false items covering a broad range of memory behaviors     

RELATION OF PHYSICAL ACTIVITY TO MEMORY FUNCTIONING IN OLDER ADULTS: THE MEMORY WORKOUT PROGRAM

This paper describes a Phase I pilot study for the future development and field testing of a prototype CD-ROM program called the MEMORY WORKOUT. The MEMORY WORKOUT helps older adults increase and monitor changes in their daily physical and cognitive activity levels and these effects on physical functioning and memory. A holistic, multimodal model of memory provides the theoretical base for the design of the program. The primary purpose of this program is to enhance users' appreciation for the immediate and longer term benefits of exercise and physical activity on daily mental and physical function. Phase I results with 24 older adults (mean age = 71.2 years) indicate significant cross-sectional relationships among exercise time, exercise efficacy, and word list memory, and moderate to strong interest in improving memory and physical activity. Using Phase I prototype information, the goal of a Phase II project is to produce a complete, interactive, multimedia CD-ROM program that includes fitness training, assessment, and simulation components that are appropriate for adults over age 60.     

MEMORY

午夜,路上寂静无声, 月儿是否也失去记忆？ 他知得多孤寂, 街灯下,枯叶在我的脚下堆积, 风儿也开始叹息。     

侧脑室注射L—脯氨酸对小鼠学习记忆的影响

采用小鼠跳台法,于训练前3min给于L—Pro 0 1—100.0μg/mouse icv对记忆获得无损害作用,而L—Pro 0.1—10.0μg/mouse icv对樟柳碱造成的记忆获得障碍均有显著改善作用。训练前1.5h给予AOAA 20mg/kg ip可能成记忆获得不良,而L—Pro 1.0μg/mouse icv对AOAA所致记忆获得不良有明显改善、以上结果表明,在小鼠跳台法实验中,侧脑室直接给予L—Pro可显著改善记忆获得障碍。     

微机内存管理及系统性能的优化

随着计算机硬件的不断发展,目前大多数微机都配有多于640KB的内存,本文阐述了微机系统内存的管理情况、内存优化及性能优化的方法。     

预期记忆及其老化研究的未来方向

预期记忆及其老化是记忆心理学的一个复兴的主题。预期记忆领域的未来方向将会涉及：研究其毕生发展特点，拓展其研究手段，分析它与其他心理变量之间的关系，考查其生活现象，探索其生理机制。预期记忆老化领域的未来方向可能集中于：加强其临床研究，注重其日常问题，探索其大脑机制，考查它与其他心理变量之间的关系，发展其改善程序。     

红色记忆文学修改本现象的符码意义

建国后“十七年”的红色文艺作品在发表后不久，大多有着修改后再版的经历。这些修改本现象本身包含着丰富的文学史信息，修改苯与初版本之间所存在的裂隙，成为沉淀特定历史时期文艺活动信息的场域与符码。以《青春之歌》的修改来看，其初版本与再版本在内容上有诸多不协调之处，再版本中的林道静已偏离了作家的写作初衰与原有的形象发展轨道，这一修改反映了作品写作年代的国家意识形态话语对作家个人话语的制约与修正。     

一类带线性记忆项抛物型方程解的正则性

一类带线性记忆项抛物型方程解的正则性徐大（湘潭师范学院数学系）摘要我们研究下面初边值问题解的正则性在Ω×Ｊ中，ｕ（ｘ，ｔ）＝０，在Ω×Ｊ上，ｕ（ｘ，０）＝ｖ（ｘ）在Ω中，这里Ａ是一个系数不依赖于时间ｔ而且光滑的线性正定自伴椭圆算子，Ω是在Ｒｄ≥１中足...     

ACCURACY AND SPEED OF MEMORY IN DEPRESSED AND ORGANIC AGED

Forty‐three subjects aged 50 and over were tested on a Sternberg recognition‐memory task to explore the relative effects of depression and altered brain function on short‐term memory in later life. Organic, depressed, and control subgroups were compared on accuracy and speed of response. Speed‐of‐memory scanning was differentiated from other speed‐of‐response components; separate estimates of memory efficiency and subjective response criteria were calculated from accuracy data by signal‐detection methods. Organic subjects performed much less accurately and quickly than others, showing great variability of response speeds. Depressed subjects performed less accurately and quickly than controls, particularly on negative trials, but did not differ in rate of memory scanning. Depression was associated with poorer memory efficiency and laxer response criteria (greater tolerance for false‐positive errors). Slower and less accurate responding was also associated with a poorer educational background. Many performance differences were best accounted for by the additive effects of depression and educational background, rather than by either variable individually. The association of laxer criteria with depression alone, however, was discussed in terms of a possible acquiescent response bias in depression.     

微机内存管理机制的分析及优化配置

从硬件和软件两个方面分析微机内部存储器的构原理及管理机制,讨论微机单机,网络工作站的内存配置的几个重要问题。     

中药合剂《抗老灵BG》系列对老龄前小白鼠智力的影响

应用中药合剂“抗老灵BG”系列对老龄前小白鼠进行抗衰老研究,同时用水迷路游泳的方法对各组小鼠进行智力测试,所得数据经统计学处理,发现用药系列实验组抵达安全室的正确率明显优于生理盐水对照组(P<0.01)。并对各组小鼠大脑进行光镜下组织学观察,发现对照组小鼠大脑神经细胞呈明显衰退性改变,表大脑皮质变薄,神经细胞减少,胞浆内有老年性色素沉积,含铁结节形成,间质小血管壁增厚,玻璃样变等,而用药系列组小鼠则无此改变,形态结构与青年小鼠相似。实验结果说明“抗老灵BG”系列可减缓小白鼠中枢神经细胞的衰老,提高小鼠智力及记忆力,使青春常驻。     

孩子记忆的深处

可现在,失去的房屋,失去的亲人,失去的家园,给予我们沉重的打击,但我们决不罢休,我们一定会保护好我们的生命,俗话说美丽的大自然,因为有了生命而变得神奇,固为有了生命而变得绚丽,生命因仅有一次而弥足珍贵,生命因壮丽而震撼人心。你的朋友:江雪     

联想记忆神经网络在高压输电线路故障诊断的应用(英)

建造了实现高压输电线路故障诊断的两种联想记忆神经网络的模型结构并提出了提高其容错能力的有效方法．对于FNN,提出“伪吸引域”的概念以人为扩大样本吸收域,在不降低网络效率的前提下大大提高了网络的容错性能;对于BAM－NN,提出增加冗余神经元来提高网络的记忆能力和容错性能,但该措施增加了网络的复杂度,降低了网络的效率．仿真结果表明,本文构造的两种联想记忆NN都能正确识别故障,且对干扰输入信息序列有相当的容错能力,而FNN则是解决电力系统故障诊断问题的一个更加简便而且有效的方法．     

微机内存剖析

本文首先对微机内存的有关概念进行阐述，对内存的优化进行了探讨，然后在此基础上提出了三种系统配置方案．