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171.
分心对记忆影响的年龄差异研究 总被引:1,自引:1,他引:0
本文研究了分心对老年人和青年人的记忆影响的年龄差异。分心条件是在判断简单算术题正误的同时,识记指向记忆和故事。结果:1.在上述分心条件下,老年组记忆作业受损比青年人更为严重;分心扩大了记忆的年龄差异。2.相对分心消耗值显然受刺激条件的影响,属片断记忆的故事分节分,分心消耗最大,类似语义记忆的故事意义分,分心消耗最小,介乎两者之间的指向记忆分,分心消耗居中。3.分心对上述记忆的影响有适应现象,两组的第二次分心测试成绩均较第一次进步。 相似文献
172.
R Bauman 《Journal of the experimental analysis of behavior》1991,56(1):33-50
Rats lived in individual chambers in which the only food available was delivered for lever pressing. During Stage I, a fixed number of presses was required for each food pellet. As this fixed ratio of presses per food pellet was increased daily, a rat's daily intake of food was reduced. During Stage II, the cost of a food pellet was increased by replacing each fixed ratio with its interval equivalent. Each interval was a rat's mean time between the first press of a ratio and the delivery of a pellet during Stage I. During Stage II, only two presses were every required for a food pellet: The first press initiated a delay and the second activated the pellet dispenser after that delay elapsed. Food intakes for the series of fixed ratios and a rat's series of delay equivalents were very similar when plotted as a function of delay, but not when plotted as a function of presses per pellet. Consequently, the fixed ratio reduced food intake because larger ratios increased delay to food from the first press of a ratio. Observations and an analysis of interresponse times further revealed that as the fixed ratio increased, and local as well as overall rate of food intake decreased, lever pressing became more stereotyped. Because this increased stereotypy resulted in greatly increased rates of lever pressing, delay to food was minimized, and perhaps more importantly, so too was the reduction of a rat's baseline daily intake. 相似文献
173.
S R Hursh 《Journal of the experimental analysis of behavior》1991,56(2):377-393
The concepts of behavioral economics have proven useful for understanding the environmental control of overall levels of responding for a variety of commodities, including reinforcement by drug self-administration. These general concepts are summarized for application to the analysis of drug-reinforced behavior and proposed as the basis for future applications. This behavioral agenda includes the assessment of abuse liability, the assay of drug-reinforcer interactions, the design of drug abuse interventions, and the formulation of drug abuse public policy. These separate domains of investigation are described as part of an overall strategy for designing model projects to control drug use and testing public policy initiatives. 相似文献
174.
McSweeny AJ 《Journal of applied behavior analysis》1978,11(1):47-51
An interrupted time-series analysis of local directory-assistance calls in the Cincinnati area from 1962 to 1976 revealed a significant reduction in the daily frequency of calls after charges were introduced in 1974. No reductions occurred in the daily frequency of long-distance directory-assistance calls, which remained free. The results attest to the efficacy of response-cost procedures with large subject populations in the natural environment. The applicability of response-cost procedures to social and business problems is discussed. 相似文献
175.
Nelson F. Jones Mark S. Holden 《Journal of clinical psychology in medical settings》1995,2(3):269-274
Savings in medical utilization, as a function of psychotherapeutic intervention, which has been widely demonstrated elsewhere, can be replicated in military medical settings. Results point not only to decreased medical utilization following mental health intervention, but also to more appropriate treatment.The material herein should in no way be construed as reflecting the views or opinions of the Department of Defense or the United States Air Force. 相似文献
176.
177.
口译可视为一种强化的双语转换活动。与一般双语者相比, 口译员在基于规则(rule-based)的转换与基于任务(task-based)的转换两方面都表现出了优势, 但基于任务的转换优势存在局部转换与整体监控的争议。经初步探索, 口译训练首先带来局部转换优势(单价任务的转换代价), 随后带来整体监控优势(双价任务的混合代价)。口译涉及的高强度语言转换及特殊的语言控制特性可能是影响口译员认知转换优势的因素。上述结果对双语优势及其他相关研究有启示作用。 相似文献
178.
Rodrigo Gomes da Rosa Natalia Andrea Gomeñuka Henrique Bianchi de Oliveira 《Journal of motor behavior》2018,50(1):73-79
Although studied at level surface, the trunk kinematics and pelvis-shoulder coordination of incline walking are unknown. The aim of this study was to evaluate the speed effects on pelvis-shoulder coordination and trunk movement and the cost of transport (C) during unloaded and loaded (25% of body mass) 15% incline walking. We collected 3-dimensional kinematic and oxygen consumption data from 10 physically active young men. The movements were analyzed in the sagittal plane (inclination and range of trunk motion) and the transverse plane (range of shoulder and pelvic girdle motion and phase difference). The rotational amplitude of the shoulder girdle decreased with load at all speeds, and it was lower at the highest speeds. The rotational amplitude of the pelvic girdle did not change with the different speeds. The phase difference was greater at optimal speed (3 km.hr?1, at the lowest C) in the loaded and the unloaded conditions. The trunk inclination was greater with load and increased with speed, whereas the range of trunk motion was lower in the loaded condition and decreased with increasing speed. In conclusion, the load decreased the range of girdles and trunk motion, and the pelvis-shoulder coordination seemed to be critical for the incline walking performance. 相似文献
179.
积极情绪对任务转换的影响 总被引:3,自引:0,他引:3
通过两个行为实验考察了积极情绪图片所诱发的情绪状态对任务转换的影响及其机制。研究任务是数字分类任务,分为保持和转换两个阶段。首先要求被试对靶刺激形成一定的习惯化反应,然后改变任务要求。实验1以53名大学生为被试,分别在积极情绪、消极情绪和中性条件下完成任务,发现在与中性条件相比时,积极情绪促进任务转换,消极情绪延缓任务转换。实验2以37名大学生为被试,增加了一种转换条件,考察积极情绪促进任务转换的心理原因,结果表明积极情绪因偏好新异刺激而促进任务转换 相似文献
180.