医学伦理学概念之探究

医学伦理学的概念看起来很简单,一般情况下人们便习以为常地接受了作为应用规范伦理学的一个分支的科学地位,而忽视了医学对医学伦理学所起的作用。本文认为：医学伦理学的具体内容是医学科技与伦理道德两因素相互作用的产物,对其相互作用的形式和产物的具体分析和总结便可构成这门学科的理论体系。     

心血管疾病的康复和旅游——生当如夏花般灿烂

现代社会导致了心血管疾病发病率的提高,同时人们越来越注重生活的质量和品质。作为生活品质标志之一的旅游能够改善心血管疾病康复患者的预后,愉悦他们的身心,而且一定高度的登山和商业飞行对患者基本是安全的。在康复旅游中我们仍有一些问题需要进一步解决。     

Implicit learning of social predictions

Humans exchange a range of nonverbal social signals in every interaction. It is an open question whether people use these signals, consciously or unconsciously, to guide social behavior. This experiment directly tested whether participants could learn to predict another person’s behavior using nonverbal cues in a single interaction, and whether explicit knowledge of the cue-outcome relationship was necessary for successful prediction. Participants played a computerized game of rock-paper-scissors against an avatar they believed was another participant. Sometimes the avatar generated a predictive facial cue before the play. On these trials, participants’ win-frequency increased over time, even if they did not acquire explicit knowledge of the predictive cue. The degree to which participants could predict the avatar (wins on cued trials) related to their self-reported liking of the avatar. These findings demonstrate the importance of implicit associative learning mechanisms in guiding social behavior on a moment-to-moment basis during interaction.     

垂体腺瘤诊疗过程中应重视对垂体腺瘤患者生命质量评估

垂体腺瘤是一种常见的颅内神经内分泌肿瘤,约占颅内肿瘤的10%~15%,常伴有不同程度的肿瘤占位效应(头痛、视力受损等)、功能性腺瘤引起的激素水平过高和正常垂体受压破坏引起的垂体功能低下等症状,因此多数患者的生命质量受到影响。随着生物-心理-社会医学模式理念的逐步深入,除了关注患者的内分泌紊乱、肿瘤大小以及肿瘤引起的症状外,患者的生命质量也应该受到密切关注。本文将针对国内外对垂体腺瘤患者生命质量评估的相关进展进行综述。     

肾移植患者生存质量及影响因素分析

探讨肾移植患者的生存质量及影响因素。采用健康状况调查问卷(SF-36)调查广州地区医疗机构145例肾移植受者移植前和移植后6个月的生存质量。移植后6个月患者的生存质量评分较移植前有明显提高。文化程度、有无配偶、经济状况、肾源、健康知识掌握程度等因素对患者的生存质量影响较大。医护人员应为肾移植患者提供个性化护理,以提高患者的生存质量。     

Investigating joint attention mechanisms through spoken human-robot interaction

Referential gaze during situated language production and comprehension is tightly coupled with the unfolding speech stream ( [Griffin, 2001] , [Meyer et al., 1998] and [Tanenhaus et al., 1995] ). In a shared environment, utterance comprehension may further be facilitated when the listener can exploit the speaker’s focus of (visual) attention to anticipate, ground, and disambiguate spoken references. To investigate the dynamics of such gaze-following and its influence on utterance comprehension in a controlled manner, we use a human–robot interaction setting. Specifically, we hypothesize that referential gaze is interpreted as a cue to the speaker’s referential intentions which facilitates or disrupts reference resolution. Moreover, the use of a dynamic and yet extremely controlled gaze cue enables us to shed light on the simultaneous and incremental integration of the unfolding speech and gaze movement.We report evidence from two eye-tracking experiments in which participants saw videos of a robot looking at and describing objects in a scene. The results reveal a quantified benefit-disruption spectrum of gaze on utterance comprehension and, further, show that gaze is used, even during the initial movement phase, to restrict the spatial domain of potential referents. These findings more broadly suggest that people treat artificial agents similar to human agents and, thus, validate such a setting for further explorations of joint attention mechanisms.     

Your heart makes my heart move: Cues of social connectedness cause shared emotions and physiological states among strangers

Two experiments tested the hypothesis that cues of social connectedness could lead even new interaction partners to experience shared emotional and physiological states. In Experiment 1, a confederate prepared for a stress-inducing task. Participants who had been led to feel socially connected to the confederate reported feeling greater stress than participants who had not. In Experiment 2, a confederate ran vigorously in place. Socially-connected participants had greater cardiovascular reactivity (heart rate and blood pressure) than controls. Each study held constant exposure to the confederate. The results suggest that the sharing of psychological and physiological states does not occur only between long-standing relationship partners, but can also result from even subtle experiences of social connectedness. These findings illustrate the dynamic and fluid ways in which important aspects of self can change in response to cues of social relatedness.     

新生市民主动发展倾向对城市生活适应性的影响:社会支持的中介效应

为探究主动发展倾向和社会支持对新生市民城市生活适应性的作用机制,本研究构建了结构方程模型.采用两个自编量表和一个现成量表,运用两阶段抽样调查法,在作为统筹城乡发展试验区的重庆市范围内,对已经取得城镇户口的新生市民进行问卷调查,获得有效样本322人.对采集的数据运用统计分析软件SPSS17.0和AMOS18.0进行数据分析和模型检验.结果表明,城市化新生市民的主动发展倾向和社会支持均对新生市民的城市生活适应具有显著影响,其中,社会支持在主动发展倾向对城市生活适应影响中具有部分中介作用.     

胃肠道肿瘤的分子靶向治疗:未来的方向?

分子靶向治疗是这几年来消化道肿瘤治疗领域的热门话题.这类新一代的分子靶向生物治疗模式,将在临床治疗肿瘤实践中具有广阔的应用前景.从事肿瘤研究的临床医务人员需要综合归纳这些信息,融汇入自己的认知将之合理应用于患者.我们将真正进入传统的细胞毒性药物攻击与非细胞毒性靶向性药物相结合使用的时代,真正实现延长患者的生命,改善其生活质量的目标.