团队学习、交互记忆系统与团队绩效：基于IMOI范式的纵向追踪研究

本研究采用纵向追踪设计,以55支实际运行的项目团队作为研究对象,分析检验了交互记忆系统对于团队学习与团队绩效之间关系的作用机制; 并基于理论界近期受到广泛关注的IMOI研究范式,通过两阶段的追踪探索团队学习与团队绩效间关系的动态机制。结果表明: 交互记忆系统对团队学习与团队绩效间关系呈现出显著的中介效应,能够为团队学习的绩效机制提供良好的理论解释力;另一方面,团队学习是一种动态演进的组织行为过程,采用IMOI范式来替代传统的I-P-O模型能够更好地剖析其动态属性。     

TYPES OF PRAYER,HEART RATE VARIABILITY,AND INNATE HEALING

Spiritual practices such as prayer have been shown to improve health and quality of life for those facing chronic or terminal illness. The early Christian healing tradition distinguished between types of prayer and their role in healing, placing great emphasis on the healing power of more integrated relational forms of prayer such as prayers of gratitude and contemplative prayer. Because autonomic tone is impaired in most disease states, autonomic homeostasis may provide insight into the healing effects of prayer. I report on observations in five volunteers engaging in five types of prayer. Using heart rate variability as a measure of autonomic tone and adaptability, I review the potential correlation of type of prayer with autonomic rebalance as measured specifically by psychophysiological coherence ratios. The five types—supplication, devotion, intercession, gratefulness, and contemplative prayer—elicited varying degrees of improvements in heart rate variability and corresponding psychophysiological coherence. These observations suggest a correlation of innate healing to prayer type that is consistent with teachings from the Christian healing tradition and with modern research. Further research is warranted to verify these hypotheses.     

Fluoxetine activity on muricidal aggression induced in rats by p-chlorophenylalanine

Fluoxetine is a selective inhibitor of serotonin uptake into serotonergic presynaptic terminals of rat brain. This compound was shown to develop a clinical antidepressant activity. Rat muricidal aggression, which is believed to involve a decrease of brain serotonergic inhibitory control, is also believed to represent a good experimental tool to study the efficacy of antidepressant drugs, which usually inhibit this behavior. In this framework, fluoxetine is also capable of significantly reducing muricidal aggression induced by p-chlorophenylalanine in male Wistar rats.     

The reinforcing properties of aggressive vs nonaggressive social interactions in isolated male ICR mice (Mus musculus)

Isolated male ICR mice in a T-maze consistently selected the goal box which enabled them to fight another mouse if the alternative goal box allowed no social interaction (Experiment 1). However, if the alternative choice enabled the isolated mice to interact with another mouse through a mesh screen which prevented fighting, the preference for the opportunity to fight did not appear (Experiment 2). Because the visual, olfactory, and auditory stimuli available through the screen appeared to be as attractive as the stimuli provided by the additional opportunity to fight, it is not necessary to conclude that the stimuli reinforcing the choice behavior in Experiment 1 were provided by fighting. Since there is no compelling reason to conclude that fighting is a primary reinforcer for these isolated mice, it is not necessary to argue that the high incidence of isolation-induced fighting is the reflection of a primary aggressive motive.     

对生活事件知觉的认知──知识系统模型

研究中测量了２６３名大学生被试对６０项生活事件的控制力知觉及其心理控制源倾向（ＩＥ）和抑郁水平（ＢＤＩ）。生活事件的实际可控性分为高、中、低三组。相关及方差分析的结果表明,当事件的实际可控性介于中间时,抑郁水平与心理控制源倾向对控制力知觉有显著的影响;当事件的实际可控性较低时,抑郁的作用不显著,心理控制源的作用显著;性别的作用在各种事件的控制力知觉中都有显著的作用;性别、内外控及抑郁水平间存在显著的交互作用。     

Stability of visceral behavior in the awake rat during rest.

Brady and colleagues have championed the importance of careful delineation and control of a subject's behavioral state. In this paper we develop the concept of visceral behavior from a physiological perspective. Sprague-Dawley rats were instrumented to record arterial blood pressure, renal sympathetic nerve activity, and respiration. The rats were restrained in a conical cloth sock. Rats that were well adapted to the sock restraint showed a regular respiratory pattern and consistent pressure recordings; they rested quietly in the sock and moved only occasionally to adjust their position. Fourier analysis of blood pressure and nerve activity showed a concentration of power below 1 Hz. The coherence between the two signals was strong (0.83 +/- 0.03) at 0.42 Hz. Conversely, during their initial adjustment to the sock restraint, the rats tended to show large fluctuations in blood pressure associated with episodic apneic breathing; 1 animal displayed this pattern of visceral behavior throughout most of the experiment. Despite this instability in pressure, the rats' overt behavior was stable: They rested quietly in the sock with only occasional position shifts. Spectral analysis and coherence computations showed large shifts in the distribution of power and frequency range over which arterial pressure and sympathetic activity were tightly coupled. These data are consistent with the view that an animal's circulatory adjustments, as well as adjustments in other aspects of its physiological state, constitute an important aspect of behavior, and that this behavior can influence the interpretation of biobehavioral data.     

Chronic fatigue syndrome/myalgicencephalomyelitis as a twentieth-century disease: analytic challenges

The challenges of chronic fatigue syndrome (often called myalgic encephalomyelitis, especially in the UK) (CFS/ME) to analytical and medical approaches are connected with our inability to understand its distressing somatic symptoms in terms of a single identifiable and understandable disease entity. The evidence for the roles of viral aetiologies remains inconclusive, as does our understanding of the involvement of the immune system. The history and social context of CFS/ME, and its relation to neurasthenia and psychasthenia are sketched. A symbolic attitude to the condition may need to be rooted in an awareness of psychoid levels of operation, and the expression and spread of CFS/ME may sometimes be aided by the ravages of projective identification. Psychic denial, sometimes violent, in sufferers (especially children and adolescents) and their families may be important in the aetiology of CFS/ME. We draw out common threads from psychodynamic work with five cases, four showing some symptomatic improvement, analytic discussions of three cases being presented elsewhere in this issue of JAP.     

Sexual reinforcement in the female rat.

Sexual reinforcement in the female rat was studied in a preparation that allowed continuous operant responding for access to a male rat leading to intromission. Experiment 1 used a high operant level nose-poke response to test the possible reinforcing effects of some components of access to a male. A simple tone stimulus used as a conditioned reinforcer and two odor stimuli, target male bedding and emulsified preputial gland, were tested. None of these contingent events altered responding above or below operant level. Access to the male, which was always accompanied by intromission, immediately increased response rate when it was made contingent upon the nose-poke response. Performance on fixed-ratio schedules was erratic, and response rate was low in comparison to typical food-reinforced responding. An interresponse-time analysis indicated, however, that some effect of the ratio contingency may have been present. In Experiment 2, several modifications of the procedure were tested with the objective of creating a more tractable preparation for behavior analysis. Response type and the hormone delivery method were changed, and 2 target males were used instead of 1. The latter tripled the average number of reinforcers earned in a single session. Differences between sexual and other reinforcers are discussed in terms of procedural, quantitative, and motivational aspects of the sexual reinforcement procedure.     

The Dilemma of Normativity: How to Interpret a Rational Reconstruction?

In modern argument theory argumentative practice is often analyzed and evaluated in terms of its correspondences with or deviations from a normative model. Such a methodology implies that there are three moments at which evaluations takes place which are not guided by the norms of the model itself because they imply an interpretation of the model by the analyst. This is demonstrated by an analogy with legal practice. this implies that an evaluation of an argumentative practice is not only relative to choice of the normative model as such, but also relative to the threefold interpretation of the model.     

Where Have All the Children Gone? Movement from Child to Adult Mental Health Systems

The mental health histories of the 448 children 15 and 16 years of age who were admitted to state-operated children's psychiatric inpatient services in New York during 1982 were reviewed for the 11 year period through April 1993, Thirty-three percent were served as adults (after age 18) in the state-operated adult civil mental health system; 42% of these individuals were still receiving services at the end of the period. 113 of the 146 individuals served as adults were served only in the civil system. Thirteen percent of the cohort received some of their mental health services as adults in the state-operated adult forensic mental health system due to criminal law involvement. This includes nine percent who received mental health services while they were inmates in state prisons. Twenty four of the 57 forensic clients received services as adults only in the forensic system. Diagnostic, demographic, and service history characteristics of the groups were compared to foster an early understanding of policy and programmatic issues related to movement from the child mental health system to the adult system. Baseline (1982) information was used to identify predictors of later service utilization.