Required pecking alters judgments of the passage of time by pigeons

There is evidence that how humans perceive time is affected by the activity in which they are engaged when they are judging time. In humans, typically, the more demanding the task, the faster time seems to pass. We asked whether a similar effect could be found in pigeons. Pigeons were trained to discriminate between a short-(2-sec) and a long-(10-sec) duration stimulus. Depending on the color of the stimulus (white or blue), the pigeons were required to peck (at least once per second or the trial was aborted) or to refrain from pecking (pecks aborted the trial). Once these tasks had been acquired to a high degree, probe trials involving white and blue stimuli were presented at durations between 2 and 10 sec. On trials in which the pigeons were required to peck, the point of subjective equality (i.e., the point at which pigeons are equally likely to choose the stimulus associated with long stimuli as the stimulus associated with short stimuli) was almost 1 sec longer than on trials in which the pigeons were required to refrain from pecking. In other words, on trials that required pecking, more time passed before the pigeons indicated that the probe duration was at the subjective midpoint between 2 and 10 sec than on trials that did not require pecking. This result suggests that like humans, the pigeons underestimated the passage of time when they were active or when attention to time-related cues had to be shared with attention to satisfying the response rate requirement.     

Moral Realism as a Moral Doctrine

This paper argues for the legalization of vote markets. I contend that the state should not prohibit the sale of votes under certain institutional conditions. Jason Brennan has recently argued for the moral permissibility of vote selling; yet, thus far, no philosopher has argued for the legal permissibility of vote selling. I begin by giving four prima facie reasons in favour of legalizing vote markets. First, vote markets benefit both buyers and sellers. Second, citizens already enjoy significant discretion in their use of their vote, including the ability to use their vote in ways antithetical to justice and the public interest. Third, vote markets are relevantly similar to other democratic practices that are legally permissible. Fourth, vote markets enable elections to better reflect the intensity of citizens’ preferences. Next, I reply to two counter-arguments. The first contends that vote markets will increase the political power of the wealthy; the second contends that votes must be used in the service of the public interest rather than private interests or influenced by participation in collective political deliberation. I argue that vote markets will not increase political inequalities relative to democracies without vote markets. There is little reason to expect electoral regulations to be less effective in satisfying egalitarian criteria in democracies with vote markets than in democracies without vote markets. Moreover, the claim that votes must be influenced by participation in collective deliberation or serve the common good implies counter-intuitive restrictions on political liberties beyond a ban on vote buying and selling, including an abridgement of equal suffrage.     

Effects of Music Training on Attention,Processing Speed and Cognitive Music Abilities—Findings from a Longitudinal Study

The present study addresses visual attention and processing speed in primary school children (N = 345; 7–8 years of age) who received either music (MC) or natural science training (NC) over a period of 18 months. Dependent variables were collected three times (T1–T3) and included measures for processing speed, visual attention and cognitive music abilities. They were submitted to latent or manifest change models including socioeconomic status and basic cognitive functions as covariates. Groups performed similarly in all dependent tasks at baseline (T1). MC showed significant increases in processing speed as well as in music abilities from T2 to T3 and increases in rhythmic abilities from T1 to T2. Although MC also showed increases in both processing speed and visual attention over time, they were at a small advantage with respect to the former and at a clear disadvantage with respect to the latter measure as compared to NC. Copyright © 2014 John Wiley & Sons, Ltd.     

Effects of Parental Soothing Behavior on Stress Levels of 2–8 Year Old Children During Voiding Cystourethrograms by Phase of Procedure

Using the example of a voiding cystourethrogram (VCUG), a painful radiological procedure, this study investigated whether parental soothing behavior (reassuring comments like “it’s almost over” or “You’re O.K.” and soothing by “sh, sh”) in one phase of the procedure influenced the child’s distress in the following phase. The sample was comprised of 68 2–8 year-old children and the accompanying parent(s). Child and parental behavior during the VCUG was coded using a standardized rating scale (CAMPIS-R). Parental reassurance during the anticipatory phase significantly increased the child’s distress of the following phase, while parental “sh, sh” significantly reduced it. Both parental behaviors showed no significant effect on the child’s distress of the following phase when applied during the procedure itself. Results underline the importance of differentiating between anticipatory and procedural phases of the VCUG. Counselling methods for parents on more appropriate strategies to assist their children during procedural phases of the VCUG are necessary.     

The Labor Market Performance of Naturalized Immigrants in Switzerland—New Findings from the Swiss Labor Force Survey

The objective of this paper is to obtain new empirical insights into the integration of naturalized immigrants in Switzerland. In particular, we focus on a comparison of first-generation immigrants with and without Swiss citizenship. The analysis on the basis of the 2008 wave of the Swiss Labor Force Survey is motivated by findings in the literature highlighting the role of the acquisition of citizenship in the integration process. In line with those findings, our results demonstrate that naturalized first-generation immigrants tend to have higher wages than non-naturalized immigrants. An applied Blinder?COaxaca decomposition technique demonstrates that this result is strongly connected to the higher human capital endowments of immigrants who have attained Swiss citizenship. The findings are in line with other case studies stating that immigrants positively select into citizenship.     

Entwicklungsbezogene Pr?vention von Gewalt und Kriminalit?t

This article provides an overview of concepts and empirical evaluations of developmental prevention of delinquency, violence and other forms of antisocial behavior in childhood and youth. At first basic terms and arguments are discussed; then a selection of family, child school and community-oriented programs are briefly presented. There follows an integrative evaluation of the field that is mainly based on systematic reviews and meta-analyses. An integrative model shows that preventive effects depend on many characteristics of the programs, contexts, participants and evaluation methods. In total effect sizes are positive and small but show practical relevance. There is a strong need for more well controlled outcome evaluations with long-term follow-up and more process evaluations of implementation and quality assurance. Future research and practice should be integrated within a long-term and cross-departmental prevention policy.     

School bullying as a predictor of violence later in life: A systematic review and meta-analysis of prospective longitudinal studies

This paper presents results from a thorough systematic review on the efficacy of school bullying (perpetration and victimization) in predicting aggression and violence later in life. Results are based on prospective longitudinal studies. Two meta-analyses are presented examining whether: a) school bullying (perpetration and victimization) is a significant predictor of later aggression and violence, and b) whether each effect remains significant after controlling for other major childhood risk factors which were significantly related to both the predictors and the outcomes. Results are based on extensive searches of the literature. Nineteen electronic databases and 63 journals were searched from the inception of each database or journal through the end of March, 2012. Bullying perpetration at school was a significant predictor of violence (Adjusted OR = 2.04; 95% CI: 1.69–2.45) an average of six years later in life. This value of OR means that bullying perpetration increased the risk of later violence by about two-thirds. The summary effect size for bullying victimization versus violence was markedly smaller but still highly significant (Adjusted OR = 1.42; 95% CI: 1.25–1.62). This value of OR means that victimization increased the risk of later violence by about one-third. Analyses are presented of various potential moderators (such as the number of risk factors controlled for and the length of the follow-up period) in an attempt to explain the significant heterogeneity in effect sizes. Sensitivity analyses are performed on both meta-analyses, and they indicate that overall there is no evidence of publication bias. The overall findings favor the existence of a more general long-term underlying antisocial tendency rather than a more specific underlying violent tendency. Implications of our research for policy and practice are highlighted and future needs in this area of research are indicated.