Cardiac modulation of startle: Effects on eye blink and higher cognitive processing

Cardiac cycle time has been shown to affect pre-attentive brainstem startle processes, such as the magnitude of acoustically evoked reflexive startle eye blinks. These effects were attributed to baro-afferent feedback mechanisms. However, it remains unclear whether cardiac cycle time plays a role in higher startle-related cognitive processes, as well. Twenty-five volunteers responded first by ’fast as possible’ button pushes (reaction time, RT), and second, rated perceived intensity of 60 acoustic startle stimuli (85, 95, or 105 dB; 50 ms duration; binaural; instantaneous rise time), which were presented either 230 or 530 ms after the R-wave, and eye blink responses were measured by EMG. RT was divided into evaluation and motor response time according to previous research. Increasing stimulus intensity enhanced startle eye blink, intensity ratings, and RT components. Eye blinks and intensity judgments were lower when startle was elicited at a latency of R + 230 ms, but RT components were differentially affected: the evaluative component was attenuated, and the motor component was accelerated when stimuli were presented 230 ms after the R-wave. We conclude that the cardiac cycle affects the attentive processing of acoustic startle stimuli.     

不同自我评价方式对高中生写作的影响

本研究考察了三种不同的自我评价方式对高中二年级学生写作活动的影响。结果表明,自我评价对写作成绩有一定改善,但短期内对一般性的学习动机与效能感无显著影响。写作结果自我评价方式有助于写作结果自我评价准确性的提高,单独的写作过程自我评价方式短期内对写作活动无显著促进作用,写作结果与写作过程的综合自我评价方式显著改善了写作活动。     

品牌延伸中母品牌的作用机制

品牌延伸研究近年来受到了国外营销学界的普遍关注,母品牌在延伸行为中的作用机制是其中的一个热点问题。文章在查阅有关文献的基础上,对该领域影响比较大的两个延伸评价模型,情感迁移模型和联想需求模型,进行了较为深入的介绍、评述和比较。两个模型都从消费者认知的角度来理解延伸评价的形成,其中涉及到刺激泛化、类化和精细计算加工等认知过程。     

肿瘤内科治疗的疗效评价

肿瘤内科治疗是肿瘤综合治疗三大手段之一,在肿瘤治疗中占有举足轻重的地位。肿瘤内科治疗的疗效评价也逐步发展和完善。新的疗效评价指标逐渐被接受,延长生存期和提高肿瘤病人的生存质量已成为肿瘤内科治疗疗效评价的原则,临床肿瘤学工作者应转变观念,以利于更好地开展临床工作。     

Pragmatic post‐structuralism (I): participant observation and discourse in evaluating violence intervention

This paper discusses the process and merits of a post‐structuralist approach to participant observation and describes the use of this research strategy in evaluating a community based ‘stopping violence’ programme. While the participant observation research strategy is commonly employed as a ‘process evaluation’ method (Rossi and Freeman, 1993 ) it's role within a distinctly post‐structuralist programme is a novel application of a well‐established research strategy. This has significant implications for how social scientists may approach both participant observation and evaluation in the future. Copyright © 2001 John Wiley & Sons, Ltd.     

青少年结果预期与评价的ERP研究

大脑不断地对环境事件产生预期并将这些预期与实际结果进行比较, 通过对反馈刺激的结果评价以优化后续行为。采用抽奖式赌博任务范式, 操纵得奖的确定性程度, 利用事件相关电位技术(ERP), 研究青少年结果预期与评价的认知和神经电生理过程, 以成人作为对照组进行比较分析。研究结果表明：(1)在反映自动、快速结果评价的FRN上, 无论在高确定性还是在低确定性条件下, 青少年与成人均未表现出显著性差异; (2)组别与确定性程度在P300波幅上表现交互作用显著, 简单效应分析表明, 在高确定性条件下, 青少年组输、赢的P300波幅表现出差异; 而成人组输、赢的P300波幅无显著性差异。青少年对反馈刺激自动的快速结果评价能力已接近成人水平, 而对反馈刺激功能意义评价的控制加工能力还未发展成熟。     

Preconceptional family health evaluation: A regional education program for family planning clients and health professionals

The Preconceptional Family Health Evaluation Program was a regional project developed and funded for 2 years by the New England Regional Genetics Group (NERGG) to educate family planning health professionals about genetics, and to offer family planning clients preconceptional identification of genetic and environmental exposure risks. To meet these goals, genetic education was provided on a regional basis to 45 family planning professionals. A self-administered family health risk questionnaire adaptable to individual family planning settings was developed. Five hundred and twenty-nine family planning clients voluntarily completed the questionnaire. Cigarette smoking (35%) and alcohol use (57%) were two major categories of risks identified. The Preconceptional Family Health Evaluation Program was well received by all participants and provided an effective means for regional education of family planning health professionals. As a result of the program, state program planners, clinical genetics services, and family planning health professionals developed a strong relationship that will serve future educational and genetic risk screening efforts.     

Wraparound care in vermont: Program development,implementation, and evaluation of a statewide system of individualized services

Over the past decade, there has been a dramatic shift in the provision of mental health services to children, adolescents, and their families. This shift has been marked by a movement away from restrictive treatment options toward the development of comprehensive community-based systems of care designed to keep the most challenging children in their homes, schools, and communities. Based on a model of intensive case management referred to as Wraparound Care, Vermont's statewide approach emphasizes aggressive outreach, use of the least restrictive treatment options, and care that is flexible, unconditional, and child- and family-centered. We chart the development of Vermont's Wraparound Care Initiative and present residential, educational, and behavioral outcome data for a cohort of 40 youth receiving Wraparound Care over a 12-month period. The results showed that after 12-months, youth who had been previously removed from their homes or were at imminent risk of such removal, were residing in significantly less restrictive community-based living arrangements and exhibiting significantly fewer problem behaviors than at intake. These results are discussed in light of recent national studies and previous studies on similar cohorts of Vermont youth receiving Wraparound Care.     

Acceleration model in the heterogeneous case of the general graded response model

A new model, called acceleration model, is proposed in the framework of the heterogenous case of the graded response model, based on processing functions defined for a finite or enumerable number of steps. The model is expected to be useful in cognitive assessment, as well as in more traditional areas of application of latent trait models. Criteria for evaluating models are proposed, and soundness and robustness of the acceleration model are discussed. Graded response models based on individual choice behavior are also discussed, and criticisms on model selection in terms of fitnesses of models to the data are also given.This research was supported by the Office of Naval Research (N00014-90-J-1456).     

试论反应性抑郁形成的心理过程

对反应性抑郁形成的心理过程进行解释的理论中 ,较有影响的有精神分析理论、控制理论、认知理论、自我注意理论和行为主义理论。由于这些理论都仅强调某一个因素的作用 ,因而有一定的局限性。如果综合考虑这些因素 ,同时还考虑到评价、个体扮演角色的多少及其采用的应付方式等因素的作用 ,就可以看出反应性抑郁形成的完整心理过程。