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Your conditions: 吕小康
  • Visual perception in individuals with autism spectrum disorder: Bayesian and predictive coding-based perspective

    Subjects: Psychology >> Cognitive Psychology submitted time 2024-04-09

    Abstract: Bayesian and predictive coding theories have been instrumental in elucidating sensory processing aberrations observed in individuals with Autism Spectrum Disorder (ASD). However, these theories have sparked considerable debate within the scientific community. In this paper, we focus on non-social visual information, presenting a comprehensive examination of theoretical nuances and consolidating empirical evidence across three key dimensions: Bayesian inference, predictive coding processes, and predictive coding precision. Generally, hypo-priors and sharper likelihood hypothesis based on Bayesian inference merely provide descriptive insights into visual processing abnormalities associated with ASD. While perspectives emphasizing the predictive coding process enhance the specificity of visual processing aberrations, they fall short of offering a fully explanatory framework. On the other hand, hypotheses centered on predictive coding precision provide theoretical foundations, yet require further refinement of the theoretical details and their validity necessitates testing through refined empirical studies. Future research should generalize the specificity of predictive processing in ASD, test the theoretical content from the perspective of subjective experience of ASD, and examine the changes of predictive functioning in the growth of ASD through a developmental perspective.

  • Intervention strategies for health rumors: An overview based on the information lifecycle theory

    Subjects: Psychology >> Social Psychology submitted time 2024-01-04

    Abstract: Intervening in the proliferation of health rumors presents a significant challenge in the era of social media. This paper delves into the multifaceted aspects of health rumor dynamics, identifying driving factors at the intersection of information and information processing entities. Utilizing the Information Lifecycle Theory, we delineate this phenomenon into three distinct stages: generation, evaluation, and dissemination. A systematic exploration of intervention strategies is undertaken across these stages. During the generation phase, a preventative approach takes precedence, emphasizing activities such as instilling psychological resilience in the public and enhancing individual health literacy. Shifting to the evaluation stage, the focus sharpens on individual agency, with particular attention to information accuracy and the promotion of analytical processing. In the dissemination phase, precision in debunking is achieved through bolstering the credibility of refutation information, effectively employing refutation texts, and regulating individual emotional states. Future research endeavors are encouraged to further innovate intervention strategies under the framework of the information lifecycle. This involves a meticulous examination of refined intervention methods tailored to diverse rumor types and susceptible populations. Additionally, emphasis is placed on the synthesis and validation of real-world application effects, leveraging insights from behavioral science and online platforms to establish enduring mechanisms for effectively intervening in health rumors.
     

  • 抑郁症起源的三类理论视角 *

    Subjects: Psychology >> Developmental Psychology submitted time 2023-03-28 Cooperative journals: 《心理科学进展》

    Abstract: Biomedical approaches to study depression focus on the explanation and intervention of the proximate cause of depression by exploring specific pathogenic genes and neuropathological mechanisms, while the theoretical medical studies of the origin of depression discuss the ultimate historical cause of depression, mainly through theoretical reasoning based on empirical results. Those theories can be classified into three perspectives. First is the evolutionary adaptation perspective, which suggested that depression originates from the adaptive mechanisms coping with evolutionary pressure, represented by the social adaptation hypothesis and the individual adaptation hypothesis. Second is the functional disorder perspective, which assumes that depression originates from the dysfunction of normal moods and emotions, represented by the mismatch explanation and gene distribution explanation. Third is the social culture perspective, which believed that depression originates from social-cultural constructed concepts, represented by the social-cultural construction viewpoint and knowledge development viewpoint. There are different tendencies of the meaning and essence of depression under three perspectives, either of essentialism or constructivism. Theoretical integration and evidence base are needed for developing more comprehensive interpretation frameworks.

  • 从“理性人”到“行为人”:公共政策研究的行为科学转向

    Subjects: Psychology >> Developmental Psychology submitted time 2023-03-28 Cooperative journals: 《心理科学进展》

    Abstract: With the criticism by behavioral economics on the rational man assumption and the accumulation of empirical evidences in the field of judgement and decision making, public policy researchers increasingly paying closer attention to the exploration of psychological and behavioral mechanism of human being in real life. These studies tend to use psychological measures, such as satisfaction and trust indicators that embody public interests and subjective feelings, to assess the performance of public policy. Besides, relevant psychological effects and technologies are employed to improve quality and efficiency of public administration and foster social fairness and justice. It is recommended that studies of public policy in China should learn the experience of two matured organizations, which are Behavioral Insights Team in UK and Social and Behavioral Sciences Team in US, clarify the connotations of this discipline, establish think tanks, and conduct researches based on China’s actual conditions.

  • 医疗信息的风险感知

    Subjects: Psychology >> Developmental Psychology submitted time 2023-03-28 Cooperative journals: 《心理科学进展》

    Abstract: The process of individual’s risk perception on medical information can be understood from the perspective of information processing. The influencing factors of risk perception on medical information are categorized into three aspects, namely, the source of medical information, the content and form of medical information, and the subject of information processing. The cognitive mechanism of individual’s risk perception on medical information was discussed based on experience-analysis processing theory and verbatim-gist processing theory. This study recommends increased attention to balance the general and specific studies of risk perception on medical information. Moreover, the standard and specific measurements should be combined, and research in the context of China’s medical system should be expanded. Furthermore, a series of theoretical and empirical research should be developed, and preventive measures and evidence-based supporting policies must be established.

  • A standardized checklist on reporting meta-analysis in open science era

    Subjects: Psychology >> Statistics in Psychology submitted time 2022-07-30

    Abstract: Meta-analysis is a crucial tool for accumulating evidence in basic and applied research. In the open science era, meta-analysis becomes an important way for integrating open data from different sources. Meanwhile, because of the great researchers’ degree introduced by multiple-step and multiple-choices in each step of meta-analysis, the openness and transparency are crucial for reproducing results of meta-analysis. To (1) understand the transparency and openness of meta-analysis reports published in Chinese journals and (2) improve the transparency and openness of future meta-analysis by Chinese researchers, we developed a Chinese version of checklist for meta-analysis, which was based on the Preferred Reporting Items for Systematic Review and Meta-Analysis protocols (PRISMA) and the principle of openness and transparency, and then surveyed the methods and results of 68 meta-analysis papers in mainstream Chinese psychological journals in last five years. Our results revealed that openness and transparency of Chinese meta-analysis reports need to be improved, especially in the following aspects: the date/time and limitation of literature search, the details of screening and data collection, the flow chart of article screening, the details of effect size transformation, and the evaluation of individual research bias. The checklist we present, which lists almost all aspects that an open meta-analysis should include, can be used as a guide for future meta-analysis.

  • Why vaccine safety scares happen and how to address them

    Subjects: Psychology >> Social Psychology submitted time 2021-01-20

    Abstract: A vaccine safety scare is defined as the phenomenon in which the public’s distrust of the validity and safety of vaccination is triggered by negative vaccine-related media reports or vaccine conspiracy theories. Such misinformation further leads to a dramatic drop in the vaccination coverage or willingness of individuals to be vaccinated domestically or globally. Together with the influence of the negative prior beliefs of vaccination and the experiential processing and gist extraction of individual cognition, this information gains further social amplification during its dissemination in society. Current psychological counter-strategies to address vaccine safety scares mainly consist of belief inoculation, reconstruction of risk perception, and satisfaction of informational needs and emotional appeals. However, the ecological validity of these methods remains unexplored. In addition, sharing positive vaccine information should be encouraged to debunk vaccine misinformation.

  • Factors and mechanisms of risk perception on medical information

    Subjects: Psychology >> Social Psychology submitted time 2020-04-29

    Abstract: Exploring the process of individual risk perception on medical information from the perspective of information processing. The influencing factors of risk perception on medical information are categorized into three aspects, namely, the source of medical information, the content and form of medical information, and the subject of information processing. The cognitive mechanism of individual risk perception on medical information was discussed based on experience-analysis processing theory and verbatim-gist processing theory. This study recommends increased attention to balancing the general and specific studies of risk perception on medical information. Moreover, the standard and specific measurements should be combined, and research in the context of China’s medical system should be expanded. Furthermore, a series of theoretical and empirical research should be developed, and preventive measures and evidence-based supporting policies must be established. "

  • The influence and mechanism of refutation texts on patients' trust and moral judgement

    Subjects: Psychology >> Social Psychology submitted time 2019-09-05

    Abstract: 采用反驳文本范式对患方进行知识修正,提升患方对医方的信任和道德判断。预实验编制反驳文本并验证其有效性,实验1验证反驳文本可以显著提高患方的对医信任和道德判断,并发现医疗结果是影响患方信任和对医道德判断的重要因素。实验2和实验3探究了反驳文本有效性的作用机制及适用普遍性,发现不确定性容忍度和宽容度在反驳文本和患方信任及道德判断之间呈链式中介作用,且反驳文本可脱离医学情境提升普遍患方信任。

  • Preliminary Establishment of Chinese Doctor-Patient Trust Scales and their Reliability and Validity

    Subjects: Psychology >> Social Psychology submitted time 2019-08-14

    Abstract: In order to compile the Chinese Doctor-Patient Trust Scales, after a series of analysis of pre-tested, such as items analysis, exploratory factor analysis and confirmatory factor analysis, 9 items of the Patients’ Presupposed Trust Subscale, 13 items of the Patients’ Realistic Trust Subscale and 8 items of the Physicians’ Trust Scale were established. And in this way, a preliminary test was conducted on 2658 patients and 1229 doctors in a convenience sampling manner nationwide. The results of both tests show that the Patients’ Trust Scale can only be used as a single-dimensional total scale, while the Physicians’ Trust Scale can be divided into two dimensions: “relationship perception” and “defense mentality”. The internal consistency coefficients of the Patients’ Presupposed Trust Subscale, the Patients’ Realistic Trust Subscale, and the Physicians’ Trust Scale are 0.71, 0.85, and 0.63 respectively. The parameters of the criterion validity and confirmatory factor analysis are all within the acceptable range. The validity of the expert evaluation of the test is adequate. The Patients’ Presupposed Trust Subscale can be used to understand the general trust level of the patients to the doctor community from the intergroup level. The Patients’ Realistic Trust Subscale can be used to understand the patients’ special trust level to the specific doctor from the interpersonal level; The Physicians’ Trust Scale can be used to assess the trust of the physician in the individual patient they are receiving. The combination of the three can be used to assess the trust matching between doctors and patients. "

  • 全株甘蔗对山羊生长性能、营养物质表观消化率、血清指标及瘤胃发酵参数的影响

    Subjects: Biology >> Zoology submitted time 2018-12-25 Cooperative journals: 《动物营养学报》

    Abstract:本试验旨在研究饲粮中添加不同比例全株甘蔗对山羊生长性能、营养物质表观消化率、血清指标及瘤胃发酵参数的影响。试验选取4~5月龄、体重相近、健康状况良好的断奶山羊96只,随机分为4组,每组3个重复,每个重复8只羊。对照组(CON组)饲喂基础饲粮,试验组(SC33、SC66和SC100组)分别用全株甘蔗替代33%、66%和100%的全株青贮玉米。预试期5 d,正试期30 d。结果表明:1)各组之间山羊终末体重、平均日增重、料重比均无显著差异(P>0.05)。随着全株甘蔗添加比例的增加,山羊平均日采食量(ADFI)呈线性增加(P<0.05),SC100组山羊ADFI显著高于其他3组(P<0.05)。2)随着全株甘蔗添加比例的增加,干物质、有机物、总能、中性洗涤纤维(NDF)及酸性洗涤纤维(ADF)表观消化率呈线性下降(P<0.05),CON、SC33组均显著高于SC66、SC100组(P<0.05)。3)随着全株甘蔗添加比例的增加,血清总抗氧化能力(T-AOC)、超氧化物歧化酶(SOD)活性均呈线性增加(P<0.05),SC66、SC100组均显著高于CON、SC33组(P<0.05);血清丙二醛(MDA)含量呈线性降低(P<0.05),SC66、SC100组显著低于CON、SC33组(P<0.05)。4)SC100组血清免疫球蛋白G含量显著低于CON、SC66组(P<0.05),SC66组血清免疫球蛋白A含量显著低于其他3组(P<0.05),SC66、SC100组血清免疫球蛋白M含量显著高于CON、SC33组(P<0.05)。CON、SC100组血清尿酸含量显著高于SC33、SC66组(P<0.05),SC100组血清肌酐含量显著高于其他3组(P<0.05)。5)CON组瘤胃液总挥发性脂肪酸浓度显著高于SC66组(P<0.05),CON组乙酸比例显著高于其他3组(P<0.05),SC100组丙酸比例显著高于其他3组(P<0.05),CON组乙酸/丙酸显著高于其他3组(P<0.05)。综上所述,饲粮中添加全株甘蔗有利于提高山羊采食性能,增强机体的抗氧化能力和免疫力。建议全株甘蔗适宜添加比例为33%~66%。

  • 饲用高水溶性磷酸一二钙对断奶仔猪生长性能、饲粮消化率、血清和骨骼指标的影响

    Subjects: Biology >> Zoology submitted time 2018-12-25 Cooperative journals: 《动物营养学报》

    Abstract:本研究以磷酸氢钙(DCP)为参照物,以断奶仔猪生长性能、饲粮消化率、血清和骨骼指标为对象,评价饲用高水溶性磷酸一二钙(MDCP)的相对生物学利用率。试验采用2×5因子随机试验设计,选择432头4~5周龄、体重相近的杜×长×大杂交断奶仔猪为试验动物,随机分为9组,每组6个重复,每个重复8头猪。每种矿物盐设5个磷添加水平,分别为0、0.05%、0.10%、0.15%、0.20%,共9个处理(0添加组共用)。试验预试期3 d,正试期35 d。结果表明:1)仔猪平均日采食量、平均日增重及死亡率等指标在磷源和磷添加水平之间均不存在显著交互作用(P﹥0.05)。试验第15~35天,MDCP组仔猪平均日采食量显著高于DCP组(P﹤0.05);试验第15~35天和第1~35天,随着饲粮磷水平的提高,仔猪的平均日增重和平均采食量均显著增加(P0.05)。2)不同磷酸盐和磷添加水平之间对仔猪饲粮干物质、钙和磷的表观消化率均无显著交互作用(P﹥0.05)。MDCP组饲粮钙和磷的表观消化率均显著高于DCP组(P﹤0.05);0.10%、0.15%和0.20%无机磷添加组钙的表观消化率显著高于0添加组(P﹤0.05)。以磷酸盐中磷的表观消化率、真消化率为指标建立回归方程,根据斜率比计算MDCP相对于DCP的生物学利用率均为120%。3)试验第14天和第35天时,不同磷源和磷添加水平对仔猪血清碱性磷酸酶(ALP)活性均无显著影响(P﹥0.05),也无显著交互作用(P﹥0.05)。试验第14天时,血清磷、钙和甲状旁腺素(PTH)含量在不同磷源和磷添加水平之间存在显著交互作用(P﹤0.05),但试验第35天时不存在显著交互作用(P﹤0.05)。试验第14天时,MDCP组血清钙含量显著高于DCP组(P﹤0.05),MDCP组血清降钙素(CT)含量显著低于DCP组(P﹤0.05)。试验第14天和第35天时血清CT含量在不同磷酸盐和不同磷添加水平之间无显著交互作用(P﹥0.05)。血清钙、磷和PTH含量与磷添加水平之间存在显著的线性回归关系(P<0.05)。以血清钙、磷和PTH含量为指标建立回归方程,根据回归方程斜率比计算的MDCP的相对生物学利用率为96%、102%和115%,平均值为104%。4)不同磷酸盐和不同无机磷添加水平对仔猪股骨、胫骨和掌骨的骨骼断裂强度均无显著影响(P﹥0.05),也无显著交互作用(P﹥0.05)。股骨灰分与磷添加水平之间存在显著的线性回归关系(P<0.05)。以股骨灰分含量为指标,根据回归方程斜率比计算的MDCP的相对生物学利用率为255%。综上所述,以试剂级DCP的生物学利用率为100%,以磷酸盐中磷的表观消化率和真消化率为指标,MDCP的相对生物学利用率均为120%;以血清指标和股骨灰分含量为指标,MDCP的相对生物学利用率分别为104%和255%。

  • 早期断奶羔羊饲喂不同中性洗涤纤维水平饲粮对羔羊育肥期生长性能、血清学指标和屠宰性能的影响

    Subjects: Biology >> Zoology submitted time 2018-12-24 Cooperative journals: 《动物营养学报》

    Abstract:本试验旨在研究早期断奶羔羊饲喂不同中性洗涤纤维水平饲粮对羔羊育肥期生长性能、血清学指标和屠宰性能的影响。选用100只体况良好、体重(6.10±0.10) kg、(18±2)日龄的湖羊公羔,随机分为4组,每组5个重复,每个重复5只羔羊。试验配制NDF水平分别为10%(10N组,作为对照组)、15%(15N组)、20%(20N组)、25%(25N组)的4种饲粮。在21~90日龄阶段,各组羔羊饲喂不同NDF水平的饲粮;在91~150日龄,所有羔羊饲喂同一全混合日粮(TMR),饲粮NDF水平为30%。150日龄时,每组挑选与平均体重相近的6只羔羊,测定血清学指标、屠宰性能和组织器官发育指标。结果表明:1)在90日龄时,15N组、20N组和25N组体重均显著高于10N组(P0.05)。2)20N组血清总蛋白含量显著高于10N组(P<0.05),20N组和25N组血清白蛋白含量显著高于10N组(P<0.05),25N组血清β-羟丁酸含量显著高于10N组和15N组(P<0.05)。3)20N组和25N组羔羊胴体重较10N组有增加趋势(P=0.061)。4)10N组头占宰前活重的比例显著高于20N组(P<0.05),其余指标各组间差异不显著(P>0.05)。综合得出,早期断奶羔羊饲喂NDF水平不低于15%的饲粮能够提高育肥期羔羊的生长性能。

  • 过氧化物酶体增殖物激活受体调控幼龄反刍动物瘤胃的生酮作用及其机制

    Subjects: Biology >> Zoology submitted time 2018-12-24 Cooperative journals: 《动物营养学报》

    Abstract:发育良好的瘤胃对于幼龄反刍动物至关重要,不仅关乎其自身的健康,也与其成年后生产性能的发挥息息相关。对于刚出生的幼龄反刍动物,其瘤胃不具有生酮功能,随日龄的增加,瘤胃形态与功能逐渐发育成熟,逐渐具备了该功能。生酮作用是瘤胃发育成熟的关键因素,β-羟丁酸(BHBA)被认为是瘤胃发育成熟的标志。近十几年来,许多学者针对影响瘤胃生酮作用的因素进行了大量研究,发现过氧化物酶体增殖物激活受体(PPARs)对于瘤胃生酮和上皮细胞增殖十分重要,转录因子PPARs可以影响到生酮作用关键酶3-羟基-3-甲基戊二酰辅酶A合成酶2(HMGCS2)的表达。但目前对于PPARs调控瘤胃生酮作用分子机制的了解仍然十分有限,因此本文针对PPARs调控幼龄反刍动物瘤胃发育的研究进展进行了综述。

  • 过氧化物酶体增殖物激活受体调控幼龄反刍动物瘤胃的生酮作用及其机制

    Subjects: Biology >> Zoology submitted time 2018-12-24 Cooperative journals: 《动物营养学报》

    Abstract:发育良好的瘤胃对于幼龄反刍动物至关重要,不仅关乎其自身的健康,也与其成年后生产性能的发挥息息相关。对于刚出生的幼龄反刍动物,其瘤胃不具有生酮功能,随日龄的增加,瘤胃形态与功能逐渐发育成熟,逐渐具备了该功能。生酮作用是瘤胃发育成熟的关键因素,β-羟丁酸(BHBA)被认为是瘤胃发育成熟的标志。近十几年来,许多学者针对影响瘤胃生酮作用的因素进行了大量研究,发现过氧化物酶体增殖物激活受体(PPARs)对于瘤胃生酮和上皮细胞增殖十分重要,转录因子PPARs可以影响到生酮作用关键酶3-羟基-3-甲基戊二酰辅酶A合成酶2(HMGCS2)的表达。但目前对于PPARs调控瘤胃生酮作用分子机制的了解仍然十分有限,因此本文针对PPARs调控幼龄反刍动物瘤胃发育的研究进展进行了综述。

  • 不同中性洗涤纤维水平饲粮对早期断奶羔羊生长性能、血清指标、屠宰性能和组织器官发育的影响

    Subjects: Biology >> Zoology submitted time 2018-12-24 Cooperative journals: 《动物营养学报》

    Abstract:本试验旨在研究不同中性洗涤纤维(NDF)水平饲粮对早期断奶羔羊生长性能、血清指标、屠宰性能和组织器官发育的影响。选用100只体况良好,体重[(6.10±0.10) kg]和日龄(18±2)接近的湖羊公羔,随机分为4个组,每组5个重复,每个重复5只羔羊。各组分别饲喂NDF水平分别为(10N组)、15%(15N组)、20%(20N组)和25%(25N组)的饲粮。所有羔羊在21~60日龄均饲喂相同代乳粉。预试期3 d,正试期70 d。结果表明:1)在50、60、90日龄时,20N和25N组羔羊平均体重均显著高于10N组(P0.05)。2)15N组羔羊血清肌酐含量显著高于20N和25N组(P<0.05),15N、20N和25N组羔羊血清β-羟丁酸含量显著高于10N组(P<0.05)。3)20N和25N组羔羊宰前活重和胴体重均显著高于10N组(P<0.05)。4)25N组羔羊头占宰前活重的比例显著低于10N组(P<0.05),而蹄重、心脏重、肝脏重和脾脏重均显著高于10N组(P<0.05)。20N组羔羊心脏重和肝脏重显著高于10N组(P<0.05)。综合得出,饲粮NDF水平为20%或30%时,能够促进羔羊生长性能、屠宰性能以及心脏、肝脏等器官重量。

  • 植物乳杆菌和苦荞黄酮及其复合物对断奶仔猪生长性能、营养物质消化率及血清指标的影响

    Subjects: Biology >> Zoology submitted time 2018-12-20 Cooperative journals: 《动物营养学报》

    Abstract:本试验旨在研究饲粮中添加植物乳杆菌和苦荞黄酮及其复合物对断奶仔猪生长性能、营养物质消化率及血清指标的影响。选取(35±3)日龄、平均体重为(7.85±0.67) kg断奶仔猪50头,随机分为5个组,每组10个重复,每个重复1头仔猪。负对照组(NC组)饲喂基础饲粮,其他各组分别在基础饲粮中添加40 mg/kg硫酸黏杆菌素(正对照组,PC组)、1×109 CFU/kg植物乳杆菌(LP组)、40 mg/kg苦荞黄酮(BF组)和1×109 CFU/kg植物乳杆菌+40 mg/kg苦荞黄酮(LB组)。试验期28 d。结果表明:1)BF组1~28 d仔猪的平均日增重显著高于NC组和PC组(P<0.05),分别提高了52.74%和34.14%。2)NC组仔猪的各营养物质消化率显著低于其他各组(P<0.05);LB组仔猪的总能、干物质、有机物和磷的消化率显著高于其余各组(P<0.05)。3)BF组仔猪的血清总蛋白、白蛋白、尿素氮、葡萄糖、游离脂肪酸、免疫球蛋白G、免疫球蛋白A、免疫球蛋白M含量显著高于NC组(P<0.05)。LP组仔猪的血清总抗氧化能力、超氧化物歧化酶、谷胱甘肽过氧化物酶、过氧化氢酶活性显著高于NC组和PC组(P<0.05),而血清丙二醛含量显著低于NC组和PC组(P<0.05)。由此可见,苦荞黄酮提高了断奶仔猪生长性能和免疫功能,而植物乳杆菌改善了断奶仔猪机体抗氧化能力,二者联合应用还改善了饲粮营养物质消化率。

  • Lay theories of illness and their influences on doctor-patient relationships

    Subjects: Psychology >> Social Psychology submitted time 2018-11-16

    Abstract: Lay theories of illness are a collection of lay people’s knowledge, explanations, and attitudes toward a particular disease. Compared with medical professionals, lay people are more concerned with the pathogenic effects of psychological, family and social factors than biological factors. They choose diverse medical treatments rather than follow the standardized medical model; they are more willing to treat the disease experience as a special issue of personal life and develop a constructive understanding. The discrepancies between lay theories of illness and scientific medical theories can lower patient’s satisfaction with medical care, trust in medical practitioners, and adherence to doctor’s advice, thereby affecting treatment outcomes. It is believed that studying Chinese lay theories of illness, their impact on doctor–patient relationships and the social psychological mechanism thereof, in the context of the Chinese medical culture and medical system, will provide useful suggestions for reducing the current tension between doctors and patients in China. "

  • Lay theories of illness and their influences on doctor-patient relationships

    Subjects: Psychology >> Social Psychology submitted time 2018-11-15

    Abstract: Lay theories of illness are a collection of lay people’s knowledge, explanations, and attitudes toward a particular disease. Compared with medical professionals, lay people are more concerned with the pathogenic effects of psychological, family and social factors than biological factors. They choose diverse medical treatments rather than follow the standardized medical model; they are more willing to treat the disease experience as a special issue of personal life and develop a constructive understanding. The discrepancies between lay theories of illness and scientific medical theories can lower patient’s satisfaction with medical care, trust in medical practitioners, and adherence to doctor’s advice, thereby affecting treatment outcomes. It is believed that studying Chinese lay theories of illness, their impact on doctor–patient relationships and the social psychological mechanism thereof, in the context of the Chinese medical culture and medical system, will provide useful suggestions for reducing the current tension between doctors and patients in China.

  • 饲粮添加木薯渣对羔羊生长性能、血清指标及瘤胃发酵指标的影响

    Subjects: Biology >> Zoology submitted time 2017-11-08 Cooperative journals: 《动物营养学报》

    Abstract:本试验旨在研究饲粮中添加不同比例木薯渣对羔羊生长性能、营养物质表观消化率、血清指标及瘤胃发酵指标的影响。试验选取3~4月龄、体重相近、健康状况良好的断奶湖羊羔羊96只,采用单因素随机分组设计方法,随机分为4组,每组6个重复,每个重复4只,分别在饲粮中添加0(对照)、5%、10%、20%的木薯渣,配制成等能等氮的4种饲粮。预试期10 d,正试期45 d。结果表明:1)饲粮添加不同比例木薯渣对羔羊的终末体重、平均日采食量及营养物质表观消化率均无显著性影响(P>0.05),但随着木薯渣的添加比例升高,平均日增重、料重比呈一次线性升高和降低(P<0.05)。2)随木薯渣添加比例的升高,血清总抗氧化能力(T-AOC)呈先降低再升高的二次曲线变化(P=0.007),对照组最高;血清谷胱甘肽还原酶(GSH)活性呈先升高后降低的二次曲线变化(P=0.001),10%组显著高于其他各组(P0.05);血清超氧化物歧化酶(SOD)活性呈一次线性降低(P=0.010)。4)随着饲粮中木薯渣添加比例的提高,血清总蛋白(TP)和白蛋白(Alb)含量均呈一次线性和二次曲线变化(P0.05)。5)饲粮木薯渣添加比例对生长羔羊瘤胃液的pH,乙酸、丙酸、丁酸、异戊酸、戊酸浓度及乙酸/丙酸无显著性影响(P>0.05)。综合得出,饲粮中添加木薯渣提高了羔羊生长性能,但高添加比例的木薯渣会对羔羊抗氧化能力和肾脏造成损害,建议木薯渣添加比例低于20%为宜。