科学探究的认知机制研究述评

科学探究涉及一个复杂的认知过程，Klahr和Dunbar的SDDS模型、Kuhn的模型以及双过程模型对此过程进行了描述；另外研究者们还对科学探究过程不同阶段需要的认知技能和认知策略以及影响因素进行了研究。     

Does the burden of the experience sampling method undermine data quality in state body image research?

Despite growing popularity of experience sampling methodology (ESM) for evaluations of state-based components of body image, there have been concerns that the frequent repeated measurement might encourage problematic responding resulting in low data quantity and/or quality. Using a sample of 105 women (mean age = 24.84), this study used multilevel modelling to investigate whether (a) there were changes in compliance or response variability across a 7-day period, and (b) whether such changes are explained by participant characteristics. Present findings suggest that demands of ESM protocol undermine quantity more so than quality of obtained data. Decline in procedural compliance across the testing period correlated with BMI and body shame, whereas reduced variability in state-based assessments did not adversely impact the strength of association between state body satisfaction ratings and other variables in the dataset. The authors make several recommendations for ensuring the quality of ESM-based data in future studies.     

Episodes of momentary resilience in daily life are associated with HRV reductions to stressful operations in firefighters: an ambulatory assessment approach using bayesian multilevel modeling

ABSTRACT

Background: Resilience is discussed to constitute a protective buffer against stress, thus fostering health. Methods: This study aimed to assess resilience both via traditional questionnaire and in everyday life on a momentary basis, and to relate these measures to autonomic functioning (heart rate variability, HRV) in 38 male firefighters during a weekday. Stressful operations, non-stressful operations and routine work at the firestation were coded during 24 hours. Momentary negative affect, feelings of resilience, and HRV were recorded via ecological momentary assessment. Findings: Questionnaire-assessed resilience was significantly positively associated with aggregated momentary resilience (r = .58, p < .001), but unrelated to HRV. However, controlling for multiple confounders (e.g., age, smoking, bodily movement, waist-to-height ratio) momentary resilience was associated with attenuated HRV and lower negative affect during stressful encounters only. Discussion: The findings suggest that momentary feelings of resilience are accompanied by vagal withdrawal to stress, possibly indicating psychological flexibility and adaptive responding to stress.     

Unruly grasses: Affective attunements in the ecological restoration of urban native grasslands in Australia

This paper explores affect as an ‘angle of approach’ for re/considering the work of ecological restoration in urban spaces. My focus is on the more-than-human affective dimensions of the reintroduction of native grasses in Melbourne's (Australia) urban parklands. Sara Ahmed suggests that ‘affect is what sticks or sustains or preserves the connection between ideas, values and objects’ (2010, 29), and here I extend this notion to think about the restoration of grasslands not as primarily material transformations (to which we might react), but as the recomposition of the 'ideas, values and objects' that constitute urban park naturecultures. The paper highlights the role of affective relations in the inheritance of landscapes that do not attract widespread positive affection. It employs Sara Ahmed's concept of the affect alien as a figure of nonconformity, to uncover how the affective resonances of grasslands might open new possibilities for attuning to the complex and multiple naturecultures of postcolonial lands.     

Ethnic Differences in the Developmental Significance of Parentification

Using an ecological framework, this 2‐wave longitudinal study examined the effects of parentification on youth adjustment across the transition to adolescence in a high‐risk, low‐income sample of African American (58%) and European American (42%) mother–child dyads (T1 M_age = 10.17 years, T2 M_age = 14.89 years; 52.4% female). Children's provision of family caregiving was moderately stable from early to late adolescence. Emotional and instrumental parentification evidenced distinct long‐term effects on adolescents' psychopathology and the quality of the parent–child relationship. Ethnicity moderated these relations. Emotional and instrumental parentification behaviors were associated with predominantly negative outcomes among European American youth in the form of increased externalizing behavior problems and decreased parent–child relationship quality, whereas emotional parentification was associated with positive outcomes among African American youth in the form of increased parent–child relationship quality, and instrumental parentification was neutral. These findings support a multidimensional view of parentification as a set of culturally embedded phenomena whose effects can only be understood in consideration of the context in which they occur.     

Instruction-prompted objective behaviors as proxy for subjective measures in a driving simulator

Interactions with other road users and interpretations of traffic situations are important aspects of driving safety. Self-reports are often used to study drivers’ perceptions and attitudes but self-reports can be inaccurate and biased because of socially desirable responding. Driving simulators offer objective measures of driver behaviors but have limited ability to elicit natural behaviors. To address this issue, we tested a driving simulator-based approach that combined realistic driving scenarios including potentially frustrating forward obstacles and delays in travel time with two different types of instructions. Participants' vehicle control behaviors and subjective perception of traffic delays were compared. Results demonstrated that behaviors collected following instructions to drive safely did not have significant associations with participants’ perceptions of the traffic delays while participants following instructions to drive quickly demonstrated behaviors that were predictive of their subjective perceptions of the traffic delays. The findings suggest that vehicle control behaviors can be used as a proxy for subjective perceptions of traffic delays. We conclude that driving simulator methodology combining instructions, realistic traffic scenarios, and adaptive analytical methods is appropriate for studying drivers’ behaviors and interactions with other road users and can minimize the need to rely on subjective self-reports.     

临床药师问诊与实践体会

问诊是临床医师的基本技能之一.医师通过问诊可以获得病史资料,从而做出临床决策.随着医学模式从传统的生物医学模式向生物心理社会医学模式转变和临床药学的蓬勃发展,药学服务模式从传统的以保障药品供应为中心向以患者为中心模式转变.药师从药房逐步走向临床,参与合理用药和提供药学服务,问诊也应成为临床药师的基本技能之一.本文通过笔者问诊实践,阐述问诊对于临床药师的重要性、药师问诊的内容及其与医生问诊的区别.     

Virtual Learning in a Socially Digitized World

Contemporary education is awakening from a crisis that has held the development of its potential and its relevance at bay for well over a century. Revolutions in science and spirituality are emerging a new relational intelligence that demands commensurate educational paradigms for its blossoming into daily engagements with life and the world around us. At the same time as people are leading increasingly interconnected lives, aware of and often participating in the narratives of people and ecosystems in other parts of the planet, information and communications technologies are increasingly integrating with and serving to mediate the human experience. This article explores the power of this confluence at the current nexus of civilizational demands in the context of increased planetary stresses and destabilizations. The case is made for a thrivable education praxis that draws on these emergent aspects of our developmental potential and emphasizes the importance of functional conviviality as an operational principle of learning for life.     

Daily emotional dynamics in depressed youth: a cell phone ecological momentary assessment study

This study used a new cell phone ecological momentary assessment approach to investigate daily emotional dynamics in 47 youths with major depressive disorder (MDD) and 32 no-psychopathology controls (CON) (ages 7-17 years). Information about emotional experience in the natural environment was obtained using answer-only cell phones, while MDD youths received an 8-week course of cognitive behavioral therapy and/or psychopharmacological treatment. Compared with CON youths, MDD youths reported more intense and labile global negative affect; greater sadness, anger, and nervousness; and a lower ratio of positive to negative affect. These differences increased with pubertal maturation. MDD youths spent more time alone and less time with their families than CON youths. Although differences in emotional experiences were found across social contexts, MDD youths were more negative than CON youths in all contexts examined. As the MDD participants progressed through treatment, diagnostic group differences in the intensity and lability of negative affect decreased, but there were no changes in the ratio of positive to negative affect or in measures of social context. We discuss methodological innovations and advantages of this approach, including improved ecological validity and access to information about variability in emotions, change in emotions over time, the balance of positive and negative emotions, and the social context of emotional experience.