Postural control after unexpected external perturbation: Effects of Parkinson’s disease subtype

Different clinical subtypes of Parkinson’s disease (PD) have long been recognized. Recent studies have focused on two PD subtypes: Postural Instability and Gait Difficulty (PIGD) and Tremor Dominant (TD). PIGD patients have greater difficulties in postural control in relation to TD. However, knowledge about the differences in reactive adjustment mechanisms following a perturbation in TD and PIGD is limited. This study aimed to compare reactive postural adjustments under unexpected external perturbation in TD, PIGD, and control group (CG) subjects. Forty-five individuals (15 TD, 15 PIGD, and 15 CG) participated in this study. Postural perturbation was applied by the posterior displacement of the support surface in an unexpected condition. The velocity (15 cm/s) and displacement (5 cm/s) of perturbation were the same for all participants. Center of pressure (CoP) and center of mass (CoM) were analyzed for two reactive windows after the perturbation (0–200 ms and 200–700 ms). The Bonferroni post hoc test indicated a higher range of CoP in the PIGD when compared to the CG (p = 0.021). The PIGD demonstrated greater time to recover the stable posture compared to the TD (p = 0.017) and CG (p = 0.003). Furthermore, the TD showed higher AP-acceleration peak of CoM when compared to the PIGD (p = 0.048) and CG (p = 0.013), and greater AP-acceleration range of CoM in relation to the CG (p = 0.022). These findings suggest that PD patients present worse reactive postural control after perturbation compared to healthy older individuals. CoP and CoM parameters are sensitive to understand and detect the differences in reactive postural mechanisms in PD subtypes.     

Methodological Challenges in the Study of Emotions in Politics and How to Deal With Them

This introductory article to the special issue zooms in on the literature on political emotions with a specific focus on methodological questions of “how to study” political emotions. To the extent that methodological matters are addressed in the extant literature, the associated challenges are often portrayed as a clash between social science and natural science disciplines, a clash frequently illustrated by the meeting between political science and neuroscience. Rather than being a clash between academic disciplines, this article argues that many of the methodological challenges facing emotional research have their origin in scholars' diverse views on the relationship between themselves as researchers and political emotions as a research object. In the light of this acknowledgment, the article encircles and discusses the methodological challenges associated with three key conceptual distinctions between: (1) individual and collective emotions, (2) emotions and reason, and between (3) involuntary political emotions and the strategic usage of political emotions. Using the contributions to this special issue as illustrations, the article argues in favor of moving beyond mutually exclusive dichotomies regarding these conceptual distinctions and offers pathways for dealing with current methodological challenges to emotional research. It points to methodological pluralism, transparency, and context‐sensitive research strategies.     

Positive and negative affect and well-being in cardiac patients and their spouses: the mediating role of illness representations

Objective: The aim of this study was to examine whether illness representations of control and consequences mediate the relation of cardiac patients’ affect to well-being. A further aim was to examine this indirect relationship at a dyadic level (i.e. patient and spouse). Design and main outcome measures: One hundred and four patients with a cardiovascular disease and their spouses participated in the study. Positive and negative affect was assessed at baseline; illness representations were assessed 2 months later, and physical and psychological well-being 4 months later. Results: Illness representations generally mediated the impact of patients’ and spouses’ affect on well-being, while several actor and partner effects were found. However, it was only positive affect that was indirectly related to well-being, while the representations of personal and treatment control chiefly acted as mediators. The effects were stronger for patients than spouses, as well as for physical well-being. Conclusion: The results underline the strong connection between illness-related self-regulation and the overall person/environment interaction as depicted by affect. They also indicate the need to integrate theories on adaptation to illness, with models describing adaptation of couples to stressful conditions, and specific theories about the role of emotion in adaptation to illness.     

Concordance of teacher-rated and performance-based measures of executive functioning in preschoolers

The most common method used to evaluate child behavior and functioning is rating scales completed by parents and/or teachers. Given that executive functioning (EF) plays a fundamental role in the developing child’s cognitive, behavioral, and social-emotional development, it would be ideal if ratings of EF and performance-based EF measures assess the same construct. However, most studies report a small to negligible association between performance-based measures and ratings of EF. There are few studies investigating this association for preschoolers, and most only include parent ratings. Teachers may be more reliable reporters of EF behaviors due to the higher demand for EF skills in the preschool setting than at home and because teachers may have a better sense of what behaviors are normative. In this study, we reviewed the associations between three EF rating scales completed by teachers on 243 preschool children. Results showed small to moderate correlations with EF measures of inhibition and cognitive flexibility/switching for all three scales, with the strongest associations observed between Child Behavior Rating Scale (CBRS) Behavioral Regulation subscale and child EF measures. Exploratory multivariate path analyses showed that, after controlling for age, sex, and socioeconomic status (SES), Behavioral Regulation significantly predicted performance-based measures of EF and accounted for incrementally more variance in the models. We conclude that in ideal situations, it is best to measure EF using both rating scales and performance-based measures of EF. The CBRS seems to be a sensitive measure of EF in preschoolers and may be a helpful brief screening tool for use with teachers.     

A NEW METHODOLOGY FOR CHRISTIAN SYSTEMATIC THEOLOGY

Science and religion are the two strongest influences on the conduct of human life, yet their respective truth claims frequently clash. To facilitate better communication between scientists and theologians on these rival truth claims, the author recommends that Christian theologians use the language and current methodology of science as far as possible so as to present the content of Church teaching in an idiom that would be intelligible not only to scientists but to the educated public as well. In this way, the rival truth claims might complement rather than compete with one another. That is, clothed in the language of science, the truth claims of religion would gain in rational coherence and intelligibility. Natural scientists in turn would have conversation partners better able to deal with philosophical and ethical issues arising out of new scientific discoveries.     

JOURNEY OF THE UNIVERSE: WEAVING SCIENCE WITH THE HUMANITIES

This article discusses Journey of the Universe as a project that consists of a film, book, conversation series, online classes, and a website. It describes how the creators worked to integrate science and humanities, not privilege or elevate science. It refutes arguments made in Lisa Sideris's Consecrating Science: Wonder, Knowledge, and the Natural World that suggest that Journey overlooks religion and distorts wonder. The article observes that Journey does not dismiss religion but includes it in explicit ways. It does not dictate wonder; it evokes wonder. In short, Journey is a living or functional cosmology with implications for mutually enhancing human–Earth relations.     

WONDER OPENS THE HEART: POPE FRANCIS AND LISA SIDERIS ON NATURE,ENCOUNTER, AND WONDER

This article argues that Pope Francis's invocations of wonder can speak to and at times challenge Lisa Sideris's recent contributions to the interdisciplinary discussion of wonder, science, and religion. Although the importance of wonder to Pope Francis's 2015 environmental encyclical Laudato si’ is acknowledged, it has not been widely recognized that wonder is implicated in and forms connections between multiple concepts and postures acknowledged as defining marks of Francis's papacy: coming out of oneself, encountering others, going to the margins; aversion to doctrinal rigidity; compassion, mercy, tenderness, and humility; to name a few. These defining concepts and stances resonate strongly with certain views on wonder, ethics, and ecology recently articulated by Lisa Sideris. In Francis, however, one finds a more affirming treatment of science‐based wonder and a response to Sideris's criticism of theistic wonder.     

IN DEFENSE OF PUBLICS: PROJECTION,BIAS, AND CULTURAL NARRATIVES IN SCIENCE AND RELIGION DEBATES

John H. Evans's recent book Morals Not Knowledge is a timely argument to recognize broader social and cultural factors that might impact what U.S. religious publics think about the relationship between science and religion and their attitudes toward science and/or religion. While Evans's focus is primarily on what can be classed as moral issues, this response argues that there are other factors that sit within neither the older epistemic conflict model approach nor a moral conflict model approach that also merit further investigation. There is a significant need for further research that examines the social, psychological, (geo)political, and broader cultural factors shaping people's social identities in relation to science and religion debates. When undertaking such research, we need to be wary of creating a binary between scholarly and public space discourse. Social scientific research in this field should be led by public perceptions, attitudes, and views, not by concepts or frameworks that we project onto them.     

SCIENCE AND RELIGION IN NINETEENTH‐CENTURY EUROPE: NON‐ANGLO‐AMERICAN PERSPECTIVES

This is an introduction to the thematic section on “The Historiography of Science and Religion in Europe,” which resulted from a symposium held at the eighth Conference of the European Society for the History of Science, University College London, UK, from September 14–17, 2018. The introduction provides a brief argument for the decentering of science and religion from the Anglo‐American discourse. It concludes by previewing the contributions of the section's essays.