Improving the 'how' and 'what' decisions of elite table tennis players

Training methods in sport usually focus on improving either technical or tactical aspects of performance, ignoring the fact that successful performance requires the athlete to simultaneously decide what movement to perform and how it should be executed. Young elite table tennis players were trained, in a first phase, to improve their forehand and backhand movements and, in a second phase, to make a tactical switch between forehand and backhand movements. Half of the players took part in behavioral training focusing on how to perform the required movements, whereas half received additional video feedback about their technical and tactical performance (decision training). The results indicate that improvements of how decisions (techniques) and what decisions (tactics) can occur as a consequence of combining technical and tactical training. These results were stable in delayed Post-test analyses of competitive matches. It was concluded that a combination of both technical and tactical training is beneficial to elite table tennis performers, particularly during early seasonal training programs.     

Relationship of Parental Alcoholism to Family-of-Origin Functioning and Current Marital Satisfaction

This study examined the relationship between parental alcoholism, family-of-origin functioning, and current marital satisfaction. Results indicated family-of-origin functioning is positively related to marital satisfaction. In addition, individuals with alcoholic parents reported lower family-of-origin functioning, and an interaction between gender and parental alcoholism was found for marital satisfaction.     

Visual search in multicharacter arrays with and without gaps

Subjects searched through briefly presented arrays of letters in a controlled order, indicating quickly which of two possible targets had occurred. Some arrays contained gaps—three missing letters. Reaction time (RT) and accuracy were both improved by a gap after the target; improvement was less when the gap preceded the target. To account for these results, a new model is proposed, one which calls for overlapping processing of successive array items. This is not a “hybrid” model, but a third alternative between the two extremes of serial (zero overlap) and parallel (complete overlap). Quantified, the overlapping model generates U-shaped serial-position curves and produces RT predictions in good accord with our data from arrays with and without gaps. The predicted functions for RT vs. array size are concave upward; however, for arrays of five or less they are virtually linear and not very different in slope for positive and negative trials. Although this model is primarily designed for RT, with some additional assumptions it can be extended to accuracy results.     

The effect of organismic disadvantage on allocation behavior in children

Equity theory (Adams, 1965) suggests that when persons are asked to divide a given amount of reward between two other persons, one relatively more disadvantaged than the other at performing a task, they will make allocations that are disproportionate to the two persons' performance levels, giving the disadvantaged person a disproportionately larger share and the advantaged person a disproportionately smaller share of the reward. The theory attributes this effect to the allocator's perception that the disadvantaged individual expended a disproportionately greater amount of effort. A group of third- and fourth-graders and a group of seventh-graders were asked to divide rewards between pairs of children that were described to vary in age (“younger” vs. older) or ability (“unskilled” vs. skilled) or that were the “same” in age and ability and that were described to vary (5 vs. 15, or 0 vs. 20 baskets) or to be equal (10 vs. 10 baskets) in performance on a basketball-shooting task. Unlike the group of third- and fourth-graders, the seventh-graders generally made significantly larger allocations to the disadvantaged individuals (“younger” and “unskilled”) than to the “same” individuals, making the largest allocations under the most discrepant performance condition (0 vs. 20). Overall, the results suggested that the equity principle becomes more salient in children as age increases.     

Hans-Martin Sass,Robert M. Veatch,Rihito Kimura (eds.). Advance Directives and Surrogate Decision Making in Health Care

Theoretical Medicine and Bioethics -     

An Interpersonal Approach to Religiousness and Spirituality: Implications for Health and Well‐Being

The interpersonal tradition (Horowitz & Strack, 2011) provides a rich conceptual and methodological framework for theory‐driven research on mechanisms linking religiousness and spirituality (R/S) with health and well‐being. In three studies, we illustrate this approach to R/S. In Studies 1 and 2, undergraduates completed various self‐report measures of R/S, interpersonal style, and other aspects of interpersonal functioning. In Study 3, a community sample completed a wide variety of R/S measures and a measure of interpersonal style. Many, but not all, aspects of religiousness (e.g., overall religiousness, intrinsic religiousness) were associated with a warm interpersonal style, and most aspects and measures of spirituality were associated with a warm and somewhat dominant style. Spirituality and related constructs (i.e., gratitude, compassion) were associated with interpersonal goals that emphasize positive relationships with others, and with beneficial interpersonal outcomes (i.e., higher social support, less loneliness, and less conflict). However, some aspects of R/S (e.g., extrinsic religiousness, belief in a punishing God) were associated with a hostile interpersonal style. R/S have interpersonal correlates that may enhance or undermine health and emotional adjustment. This interpersonal perspective could help clarify why some aspects of religiousness and spirituality are beneficial and others are not.     

psiTurk: An open-source framework for conducting replicable behavioral experiments online

Online data collection has begun to revolutionize the behavioral sciences. However, conducting carefully controlled behavioral experiments online introduces a number of new of technical and scientific challenges. The project described in this paper, psiTurk, is an open-source platform which helps researchers develop experiment designs which can be conducted over the Internet. The tool primarily interfaces with Amazon’s Mechanical Turk, a popular crowd-sourcing labor market. This paper describes the basic architecture of the system and introduces new users to the overall goals. psiTurk aims to reduce the technical hurdles for researchers developing online experiments while improving the transparency and collaborative nature of the behavioral sciences.