应激干预对不同行为类型大学生心率血压手指温度的影响

探讨应激干预对心率、血压、手指温度的影响及不同行为类型的差异。被试为河北师范大学本科生72人(A、B型各36人),应激干预为音乐放松、腹式呼吸和静坐休息,实验包括基线期-干预期-应激期-恢复期四个阶段,在观看紧张性影片前进行应激前干预,记录被试的心率、血压、手指温度。结果发现,就缓解应激所产生的交感神经活动增强来说,音乐放松效果较好,腹式呼吸也明显优于自然休息;行为类型（A、B）和应激干预大多表现出来交互作用;个体生理反应的性别差异与生理指标有关,基线值的性别差异较大时,男女生的生理数据不宜混合在一起,基线值相差不大时,可以用相对值（如变化值或变化率）进行统计处理。说明行为类型（A、B）对于应激而言是一种微调变量,在自然休息状态或者低应激水平下作用更明显,应激水平较高时,行为类型的调节作用会显著降低;不同应激干预适用不同行为类型个体     

X线伤害:先天性心脏病介入治疗知情同意的盲点

随着先天性心脏病介入治疗快速发展,受X线照射的患儿日益增多。而X线照射的危害并未受到临床医生的重视,家属也没有充分的知情同意。     

如何导引"儒门道脉同归佛海"?——蕅益智旭对《论语》的解释

该文分析十七世纪蕅益智旭(1599-1677)对《论语》的思想世界的解释。该文首先指出,智旭以无限生命、死生一致的观点作为核心,重构孔门的生死观,再以心学之立场重新解释孔子思想中的“学”、“道”与“天命”三个重要概念。智旭将“学”解释为“心”之觉醒,将“道”理解为“空生大觉”之道,将“知天命”解释为对“不生不灭之理”与“虚妄生灭之原”的通透。凡此种种新诠,在东亚《论语》诠释史上,均有其特殊性,一方面展现王阳明以后以“心”学解释经典的“自由的”学风,另一方面则显示明末三教合一之思想趋向。     

稳定性冠心病何时需要PCI

目前稳定性冠心病通行的治疗策略是药物治疗的同时常规作冠脉造影,如果病变严重,则尽可能地作介入治疗。但最近COURAGE试验结果的公布,证实介入治疗仅可以缓解症状,但不能改善预后。因此,我们要对PCI在稳定性冠心病中的作用和定位重新进行思考。     

低静息心率与反社会行为的关系

由于静息心率易测性, 对静息心率的研究成为研究攻击和犯罪行为生理机制的重要手段之一。研究发现低静息心率与多种反社会行为存有关, 无论是动物研究, 人类研究还是跨文化的研究都表明了这种关系的存在。但元分析的结果表明低静息心率与反社会行为之间关系的效应量只是中等水平。同时, 社会经济因素和人格因素对低静息心率与反社会行为之间的关系有影响。低静息心率可能与低恐惧或低唤醒的特质、去甲肾上腺素功能减弱、大脑右半球功能减弱等因素有关。     

《齐物论》两种英译之比较--一点解释学思考

《齐物论》是中国哲学史上的重要文本,其英译问题同样值得重视。本文比较冯友兰和Graham对《齐物论》的翻译,分析他们不同的翻译特色,并由此引出有关作者原义与译者理解之间的张力等解释学问题。     

科学思维的应用与心内重症的诊治

现代科学思维方法中,最具普遍适用意义、最重要的是系统思维方法、模糊思维方法等.介绍尝试将系统思维方法和模糊思维方法在心脏内科重症监护病房常见病诊治中应用的一些体会.     

Different measures of risk perceptions yield different patterns of interaction for combinations of hazards: smoking,family history and cardiac events

Some combinations of hazards yield disease rates greater than would be expected from the risk attributable to each hazard in isolation. However, perceptions are often more consistent with the combined risk being seen as less than the sum of the individual factors, raising concerns over the validity of some measures of risk perception. Here, 249 adults estimated the risk of cardiac events for four hypothetical men, described as having high or low levels of smoking and family history of heart disease. Three distinct measures were used. A 9‐point scale produced a strong sub‐additive interaction, a 101‐point scale produced a weaker sub‐additive interaction, and an unbounded scale produced no interaction. In this study, as in all previous research, scales with relatively few points (here a 9‐point scale) yield sub‐additive interactions. Given the consistency of results yielded by such scales, irrespective of context, it is concluded that these scales are not valid for perceptions of multiple risk factors. Copyright © 2004 John Wiley & Sons, Ltd.     

CHANGES IN BLOOD PRESSURE AND HEART RATE DURING FIXED‐INTERVAL RESPONDING IN SQUIRREL MONKEYS

Episodic and sustained increases in heart rate and mean arterial blood pressure can occur with recurring patterns of schedule‐controlled behavior. Most previous studies were conducted under fixed‐ratio schedules, which maintained a consistent high rate of responding that alternated with periods of no responding during times when the schedule was not in operation. The present study examined changes in heart rate and blood pressure under fixed‐interval schedules which maintained a range of rates that varied from little or no responding at the beginning of the fixed interval to high rates at the end of the interval. The relations of cardiovascular function to rate of responding were examined. Squirrel monkeys prepared with arterial catheters were trained to respond under fixed‐interval schedules of electric‐shock presentation. The duration of the interval was varied across sessions and cardiovascular parameters were examined. Local rates of responding were typically near zero during timeout periods, low at the beginning of each fixed‐interval cycle, and then increased as the fixed interval progressed. At most schedule durations, arterial blood pressure and heart rate levels were lowest at the beginning of the interval cycles, increased as the rate of responding increased, and then decreased during the timeout periods. At all parameters studied, there was a direct relationship between changes in response rate within fixed‐interval cycles and changes in heart rate and blood pressure. The results suggest that a much closer concordance of these cardiovascular parameters and schedule‐controlled responding is obtained by examining ongoing behavior as it occurs within the contingencies by which it is maintained.