Investigating temporal variations in pedestrian crossing behavior at semi-controlled crosswalks: A Bayesian multilevel modeling approach

“Semi-controlled” crosswalks are unsignalized, but have clear pavement markings and “yield to pedestrian” signs. At these locations, pedestrians and motorists frequently interact to determine who should proceed first. When interacting with drivers, pedestrian crossing decisions are complex events that involve a variety of human responses, as well as vehicle dynamics, traffic characteristics, and environmental conditions. In addition, these complexities can be subject to temporal effects. Without considering temporal variations in pedestrian-motorist interaction, statistical methods could lead to biased coefficient estimates and inaccurate conclusions.The study developed a Bayesian multilevel logistic regression (BMLR) model to capture heterogeneities in pedestrian interaction behavior during four different time periods. The proposed method incorporates time-specific effects that vary randomly between time-periods based on a weakly informative prior. The results indicate significant factors, some of which confirm previous research and some that are new ways to explain pedestrian behavior at the individual level. The identification of variables such as FlowOn and FlowWait sheds light on the interactions between pedestrians – providing more information than the single GroupSize measure.Some consequent safety implications are discussed from the perspectives of vehicle dynamics, vehicle flow rate and pedestrian volume. The more detailed metrics developed in this paper will provide a valuable starting point. for the design of crosswalk controls that will foster a higher degree of compliance and less delay.     

Effect of inequality on cooperation: Heterogeneity and hegemony in public goods dilemma

We conducted two studies to explain inconsistent findings on the effect of resource inequality based on two properties of heterogeneity: (a) level of inequality and (b) asymmetry of resource distribution. We confirmed that symmetrically heterogeneous groups cooperated less than homogeneous groups did. We also found that larger resource inequality led to less cooperation. More importantly, the effect of inequality was different among groups with different distributions of resources – cooperation declined in groups with a symmetrical distribution of resources but did not decline in groups with a hegemonic distribution. Hegemonic distribution also affected psychological states as resource inequality changed. High endowment members reported higher self-efficacy when distribution was hegemonic than symmetric. However, they also reported more fear of being a sucker in hegemonic groups.     

Autistic camouflaging across the spectrum

Camouflaging may be characterized as a set of actions and strategies more or less consciously adopted by some autistic people to navigate the neurotypical social world. Despite the increased interest that this phenomenon has garnered, its nature remains elusive and in need of conceptual clarification. In this paper, we aim to put forward an inclusive view of camouflaging that does justice to its complexity while also reflecting the heterogeneity of autism as a condition. First, we offer an overview of the main characterizations of camouflaging. This overview shows that current characterizations fail to paint a cohesive picture, and that different accounts emphasize different aspects of the phenomenon. Second, we explore the analogy between camouflaging and passing, which we take to be illuminating to describe some forms of camouflaging, while probably obscuring the study of others. Third, we extend the discussion about camouflaging to currently understudied groups across the autistic spectrum – i.e., children, and adults with linguistic and/or intellectual disabilities. We argue that camouflaging in such groups may differ from what the current literature describes as typical instances of camouflaging. We conclude by revisiting the nature of camouflaging in light of such understudied groups, and we offer some suggestions on how to move research forward.     

Tabular asterisks, Paul Meehl, and looking at the data

Three of Meehl’s major concerns are examined in this summary. They are the problem of null-hypothesis testing as a strategy, the central significance of heterogeneity in human behavior, and the over-dependence on rating scales with their inherent lack of precision.     

Dissociated control as a signature of typological variability in high hypnotic suggestibility

This study tested the prediction that dissociative tendencies modulate the impact of a hypnotic induction on cognitive control in different subtypes of highly suggestible individuals. Low suggestible (LS), low dissociative highly suggestible (LDHS), and high dissociative highly suggestible (HDHS) participants completed the Stroop color-naming task in control and hypnosis conditions. The magnitude of conflict adaptation (faster response times on incongruent trials preceded by an incongruent trial than those preceded by a congruent trial) was used as a measure of cognitive control. LS and LDHS participants displayed marginally superior up-regulation of cognitive control following a hypnotic induction, whereas HDHS participants’ performance declined. These findings indicate that dissociative tendencies modulate the influence of a hypnotic induction on cognitive control in high hypnotic suggestibility and suggest that HS individuals are comprised of distinct subtypes with dissimilar cognitive profiles.     

实践哲学的传统与创新专题：元实践学与异质性理论——对一套实践哲学研究方案的说明

当今众多以“实践哲学”为名号的研究其实只是家族相似。该文是对笔者的实践哲学方案的说明,目的在于跟其他方案区别开来。该方案的学科名称为“元实践学”,是对实践问题的形上学探讨,学说名称为“异质性理论”,是奠基于“异质性”概念的元实践学。     

When a Man Thinks He Has Female Traits Constructing Femininity and Masculinity: Methodological Potentials and Limitations

In everyday life, people are confronted with common beliefs about how women and men differ from each other. These beliefs make them wonder about their personal femininity and masculinity. But what hides behind these constructs? In this article, we will discuss the potential and limitations of different definitions. We will focus on methodological issues which can trigger new discussions about the social implications of gender differences—which are not part of this paper. One of the major questions here is whether it is methodologically justifiable (legitimate) to make individual predictions based on group differences. An issue that is not only relevant in regards to femininity and masculinity. In general, all definitions of masculinity and femininity show more limitations than potentials. They are either neglecting certain sub-groups or are based on stereotypes (either displaying common beliefs or exaggerated group differences). Individual predictions derived from these constructs are questionable due to oversimplification/reductionism (e.g., when forming groups). By pointing out that constructs like femininity and masculinity can in fact limit an individual’s development, it is suggested to clearly differentiate between different types of differences and to clearly state what can and cannot be said when “measuring” an individual’s masculinity and femininity. Since femininity and masculinity can be seen as example constructs, and generalizations are part of many research processes, general implications beyond these concepts are being discussed.     

Musical Memory in Alzheimer Disease

ABSTRACT

This study examines musical memory in 12 patients with moderate or severe AD and 12 healthy, older adult controls. Participants were asked to distinguish familiar from novel tunes, to identify distortions in melodies, and to sing familiar tunes. Comparison of the AD and control groups showed significant impairment of the AD participants. However, a more complex picture emerged as we compared each individual case to the control group. Five of the AD group performed within the control group range on most tasks. An additional four participants showed partial sparing in that they performed below the range of control participants, but their scores were above the level of chance. The final three participants showed near complete loss of musical memory, as their performance was consistently at or near the level of chance. These results are discussed in terms of the literature on the heterogeneity of cognitive presentation in AD.     

The diamond ratio: A visual indicator of the extent of heterogeneity in meta-analysis

The result of a meta-analysis is conventionally pictured in the forest plot as a diamond, whose length is the 95% confidence interval (CI) for the summary measure of interest. The Diamond Ratio (DR) is the ratio of the length of the diamond given by a random effects meta-analysis to that given by a fixed effect meta-analysis. The DR is a simple visual indicator of the amount of change caused by moving from a fixed-effect to a random-effects meta-analysis. Increasing values of DR greater than 1.0 indicate increasing heterogeneity relative to the effect variances. We investigate the properties of the DR, and its relationship to four conventional but more complex measures of heterogeneity. We propose for the first time a CI on the DR, and show that it performs well in terms of coverage. We provide example code to calculate the DR and its CI, and to show these in a forest plot. We conclude that the DR is a useful indicator that can assist students and researchers to understand heterogeneity, and to appreciate its extent in particular cases.