Effect of stimulus duration on stereo and vernier displacement thresholds

Stereo and vernier thresholds were determined as a function of stimulus duration in both misalignment and displacement paradigms. All four thresholds increase as stimulus duration decreases. The increase is greatest for the stereo displacement threshold, less for the vernier displacement threshold, and least for the misalignment thresholds. The results are consistent with the hypothesis that depth signals are averaged over time.     

Support for Gun Control: the Influence of Personal,Sociotropic, and Ideological Concerns1

Two random telephone surveys were conducted-one in Evanston, Illinois and one in Morton Grove, Illinois-to assess the motivations underlying public support for handgun control. The data from both surveys suggested that such support was linked most strongly to citizen beliefs about the effect of a handgun ban on the overall crime rate. Little support was found for either the suggestion that gun control opposition is linked to concerns about personal protection against crime or for the suggestion that views about gun control are part of a more general ideological orientation.     

DIVERGENT PROBLEM SOLVING

On compare les performances d'adolescents hindous (N = 70) et américains (N = 94) habitant des bourgs agricoles, dans deux épreuves de créativité (divergent thinking). Les résultats montrent que les sujets américains donnent plus de réponses nouvelles aux problèmes, tandis que les Hindous répondent de façon routinière, ce qui ne convient pas aux tâches proposées. On peut interpréter ces différences de deux manières: ou bien c'est l'environnement pris globalement qui entraîne une capacité différentielle à penser de façon créatrice; ou bien il s'agit d'une influence spécifique de la maison et de l'école. Une réplique partielle de la première étude a été réalisée à New Delhi (Inde): le milieu urbain présente des ressemblances avec l'environnement global des adolescents américains, tout en conservant les traditions hindoues en matière d'habitat et d'école. Les résultats sont en faveur de l'hypothèse selon laquelle ce sont les différences dans l'environnement global qui influent sur la créativité.     

A solid-state device for eliminating electrical noise and biopotentials in electromyographic (EMG) recordings

A small, low-cost, integrated circuit device is described. This circuit reduces electrical noise, such as that produced from a poor electrode-skin interface and power-line interference (60 Hz). Advantages of this device, with regard to use in electrically noisy environments and with long cables, are discussed.     

Influence of sensitivity on response bias in taste and audition

A detection theoretic analysis was employed to examine sensitivity and response bias in two modalities. In Experiment 1, 6 tasters made same-different judgments about the concentration of either sucrose or quinine in pairs of tonic water samples. The beverages were colored, but color was not predictive of the concentration of the sweet or bitter ingredient. When same-different ratings were collapsed to approximate the outcome of a categorical decision, tasters with poorer sensitivity appear to have adopted more extreme response criteria than did tasters with greater sensitivity, irrespective of taste quality, color, or whether pairs of solutions comprised the same or different colors. In Experiment 2, 3 individuals discriminated pairs of 1000-Hz sinusoids differing in amplitude. Six amplitude differences were tested. Rating-scale versions of two paradigms: The single-interval yes-no task and the two-interval same-different task were used to measure sensitivity and bias. There was a preponderance of "same" responses in the same-different task. Estimates of bias obtained from collapsed ratings in both tasks were unaffected by sensitivity, but a consideration of the range over which sets of criteria were spread suggested a general tendency toward more conservative response biases as sensitivity declined.     

Discrimination and Eating Disorder Psychopathology: A Meta-Analysis

Eating disorders occur in diverse populations, and discrimination may be a specific factor that is related to higher eating disorder psychopathology among marginalized individuals. To evaluate the current evidence on this topic, a meta-analysis was used to quantitatively synthesize the literature on discrimination and eating disorder psychopathology across a heterogeneous range of studies. Searches were conducted in peer-reviewed journals and accessible unpublished dissertations of all years through January 2020. Studies were coded by two authors using a tailored coding form, and zero-order bivariate correlations were used as effect size measures. There were 55 cross-sectional studies extracted for inclusion in the meta-analysis. Results showed a small-to-medium association between discrimination and eating disorder psychopathology that was consistent across domains. Effect sizes were typically higher for weight discrimination. For binge eating and general eating disorder pathology, effects were smaller in studies that had larger proportions of women, and for binge eating only, effects were higher in college samples. These findings could suggest that discrimination represents a contributory factor related to eating disorder psychopathology across types of discrimination and eating disorder psychopathology. Implications are discussed for future research on discrimination and psychopathology including possible mechanisms.     

More than fantasy: Prosocial daydreams relate to prosocial dispositions and behaviour

The current studies examined the relationship between the penchant to daydream about helping others and prosocial traits and behaviour. We reasoned that fantasising about prosocial acts should be positively associated with a more prosocial disposition and real behaviour. Across both studies, the findings suggest that people who exhibit prosocial characteristics (e.g., empathic concern, fantasy/fictional empathy, moral reasoning) are more likely to fantasise about prosocial behaviour, and these characteristics are reliably associated with increased helping behaviours. From Study 1, the correlational results showed that people higher in agreeableness exhibited a stronger tendency to engage in prosocial fantasising, and empathy, in part, mediated the relationship. The experimental results from Study 2 conceptually support those from Study 1; when prompted to fantasise about prosocial behaviour, those higher in agreeableness and openness to experience engaged in more helping behaviour, whereas in a control condition, no helping differences emerged. Finding that empathic concern was most consistently related to daydreaming is consistent with the theory in that people are more intrinsically motivated to promote other's welfare at a personal cost when they feel empathy. Engaging in prosocial fantasising may increase empathy, which in turn, may enhance one's prosocial disposition and increase one's helping behaviour.     

Teaching with Spiritual Impact: An Analysis of Student Comments Regarding High‐ and Low‐Rated Spiritually Inspiring Religion Classes

We analyzed 2,621 written student comments to better understand themes which most contribute to religion classes being rated high or low in terms of the spiritual benefit students received from the class. From 2,448 religion classes taught from September of 2010 through April of 2014, comments from the top 61 (2.5 percent) and bottom 51 (2.1 percent) rated classes in terms of being “spiritually inspiring” were compared for emerging themes. The most frequent themes in higher‐ranked spiritually inspiring courses were (1) intellectually enlightening and (2) applied religion to life. In lower‐ranked spiritually inspiring courses the themes (1) class time was ineffective and (2) poor assessments were prevalent. We explore the practical implications from these and other findings.