Autoshaping in the rat: Effects of omission on the form of the response

Two experiments were conducted to investigate the effect of an omission contingency on behavior related to and characterizing autoshaped lever contacts in the rat. In Experiment I an omission contingency imposed on autoshaped lever contacts forceful enough to produce a press (.078N) resulted in a significant decrease in lever presses, but had no effect on frequency of lever touches (contacts of insufficient force to produce a press) or rate of food tray entry during lever presentation. In contrast, rats which received a similar number of lever-food pairings, but whose behavior had no programmed consequences (yoked control subjects), showed an increase in lever press rate, a significant decrease in rate of food tray entry, and no change in rate of lever-touches. In Experiment II, the effect of a similar omission contingency on the topography of lever contact responses was investigated. Prior to omission training subjects contacted the lever primarily by pawing it. Following omission training this behavior was suppressed, with a subsequent increase in lever contacts characterized as nosing. Yoked control subjects showed no significant changes in lever contact topography. The results indicate that (1) an omission contingency does not simply eliminate wholesale those topographies which incur the contingency but produces subtle adaptive changes in lever contact topography; and (2) the nature of the autoshaped response in the rat does not appear to be rigid enough to depend solely upon the nature of the unconditioned stimulus or the conditioned stimulus, but can also be determined by the relationships existing between the animal's behavior and these stimuli.     

Questioning the goal-switching account of the AB: comment on Ferlazzo et al. (2007)

Identification of the second of two targets (T2) is impaired when presented less than about 500?ms after the first (T1; Attentional Blink: AB). Although the AB is known to be remarkably robust across many manipulations, [Ferlazzo, F., Lucido, S., Di Nocera, F., Fagioli, S., &; Sdoia, S. (2007). Switching between goals mediates the attentional blink effect. Experimental Psychology, 54, 89–98; Ferlazzo, F., Faglioli, S., Sdoia, S., &; Di Nocera, F. (2008). Goal-completion processes affect the attentional blink. European Journal of Cognitive Psychology, 20, 697–710] found it to be substantially attenuated when the observers were set to accomplish a single goal (e.g. reporting the sum of the T1 and T2 digits) instead of a dual goal (reporting T1 and T2 separately). The larger AB obtained with the dual-goal set was ascribed to the attentional switch necessitated by the goal-switch between T1 and T2. This conclusion is questionable on three grounds: non-equivalent scoring procedures across conditions, range of inter-target lags, and unreliability of the baseline level. These issues were addressed in the present study. Contrary to Ferlazzo et al.’s conclusions, we found no AB attenuation in the single-goal, relative to the dual-goal condition.     

A Recourse Stochastic Goal Programming Approach for the Multi‐objective Stochastic Vehicle Routing Problem

This paper addresses a multi‐objective stochastic vehicle routing problem where several conflicting objectives such as the travel time, the number of vehicles in use and the probability of an accident are simultaneously minimized. We suppose that demands and travel durations are of a stochastic nature. In order to build a certainty equivalent program to the multi‐objective stochastic vehicle routing problem, we propose a solution strategy based on a recourse approach, a chance‐constrained approach and a goal‐programming approach. The resulting certainty equivalent program is solved to optimality using CPLEX. Copyright © 2016 John Wiley & Sons, Ltd.     

目标定向在自我调节学习中的作用

该研究主要探讨了目标定向与认知策略、失败应对方式之间的关系,以及三者与学业成绩之间的关系,在此基础上对目标定向在自我调节学习中的作用提出了假设：目标定向是自我调节学习的始动机制,它影响着个体在学习中所采用的认知策略,以及在学业失败后所选择的应对方式,而认知策略和失败应对方式则直接对学习效果产生影响。     

Flow experiences in everyday activities of Japanese college students: Autotelic people and time management1

Abstract: This study examines the characteristics of flow activities, executive skills of time management and goal directedness related to autotelic personality styles. Japanese college students (155 men and 168 women) completed the Flow Experience Checklist, Evaluation after Everyday Life Activities Scale, Time Management Skill Scale, Experiential Time Perspective Scale, and Multiple Mood Scale with reference to five everyday activities. The results suggest that flow activities are related to the process of personal growth and self‐advancement, and also provide pleasure and motivation for subsequent activity. Autotelic people reported the highest amount of flow experience in everyday activities, and the highest scores on time management and goal directedness.     

人际目标认知三视角模型

人际关系对自我管理有着重要的意义。关系对象会影响个体的目标设置和目标追求,个体在日常生活中所追求的目标也会影响其人际关系的进程。Fitzsimons等人提出了人际目标认知三视角模型,强调目标在自我和他人关系中的重要作用。模型主要介绍了目标与重要他人之间的双向复杂关系,并对影响二者关系的调节变量进行了分析。未来研究应该在深入探讨重要他人与目标之间关系的基础上扩大人际关系对象的范围,考察一般他人与目标的关系及其心理机制。     

An Application of MCDM in Water Resources Problems

In this paper a practical application of MCDM in water resources problems is presented. Based on a real project for Qinhuangdao water resources management sponsored by Qinhuangdao Municipality, we construct a set of models for inflow forecast, reservoir operations, water supply and allocation, and flood routing for system optimal operation and flood management. A stochastic dynamic programming (DP) model with a fuzzy criterion is proposed for monthly reservoir operations. A series of goal programming (GP) models is built for water supply and allocation on different planning and operating levels. The DP–GP models fulfil the optimal operation tasks of a water resources management decision support system (WRMDSS) for Qinhuangdao water resources management.     

无意识成就目标激活与追求:来自ERP的证据

为探索无意识目标激活的神经机制,采用单因素被试内设计,自变量为目标激活阶段无意识成就目标激活(有、无),因变量为阈下呈现的成就目标相关词(成就目标无关词)出现后所诱发的ERP成分,以及目标追求阶段被试判断两位数加减法算术式的正确率和平均反应时。结果发现:(1)无意识成就目标能够通过阈下启动得以激活;(2)阈下呈现的成就目标相关词诱发了一个明显的N200成分,可能反映了大脑执行控制功能在个体无意识成就目标激活与追求中的重要作用。     

未来情景思考对目标达成的双刃作用及其机制

未来情景思考指个体想象并预先感受某个可能在未来发生的自我相关情景事件的心理加工,它对目标达成可产生双刃影响:一些思考方式会妨碍目标达成,如想象理想的结果或过程;而另一些思考方式则会促进目标达成,如过程模拟和想象较为消极的目标相关场景。对于未来情景思考是促进还是妨碍目标达成,动机水平的高低和执行意向的清晰程度可能是关键调节因素,相应的干预策略可通过增强这两者而将未来情景思考对目标达成的妨碍作用转化为促进作用。进一步的研究需系统探讨不同方式的未来情景思考影响目标达成的认知神经机制,并对目标特征和人格特点如何调节未来情景思考对目标达成的影响进行探讨。