Learning a Phonological Contrast Modulates the Auditory Grouping of Rhythm

Perceptual grouping is fundamental to many auditory processes. The Iambic–Trochaic Law (ITL) is a default grouping strategy, where rhythmic alternations of duration are perceived iambically (weak‐strong), while alternations of intensity are perceived trochaically (strong‐weak). Some argue that the ITL is experience dependent. For instance, French speakers follow the ITL, but not as consistently as German speakers. We hypothesized that learning about prosodic patterns, like word stress, modulates this rhythmic grouping. We tested this idea by training French adults on a German‐like stress contrast. Individuals who showed better phonological learning had more ITL‐like grouping, particularly over duration cues. In a non‐phonological condition, French adults were trained using identical stimuli, but they learned to attend to acoustic variation that was not linguistic. Here, no learning effects were observed. Results thus suggest that phonological learning can modulate low‐level auditory grouping phenomena, but it is constrained by the ability of individuals to learn from short‐term training.     

The illocutionary force of laws

This article provides a speech act analysis of ‘crime-enacting’ provisions in criminal statutes, focusing on the illocutionary force of these provisions. These provisions commonly set out not only particular crimes and their characteristics but also their associated penalties. Enactment of a statute brings into force new social facts, typically norms, through the official utterance of linguistic material. These norms are supposed to guide behaviour: they tell us what we must, may, or must not do. Our main claim is that the illocutionary force of such provisions is primarily ‘world-creating’, i.e. effective, or declarational, rather than directive (behaviour-guiding). We assume that directive illocutionary force is either direct or indirect, showing that provisions need not contain the linguistic items that make for direct directives and that according to standard tests no indirect directive is present. A potential counter-argument is that any utterance serving to direct behaviour is necessarily a directive. We show that this behaviour-directing property is shared by some clear non-directives.     

Response strength in extreme multiple schedules

Four pigeons were trained in a series of two-component multiple schedules. Reinforcers were scheduled with random-interval schedules. The ratio of arranged reinforcer rates in the two components was varied over 4 log units, a much wider range than previously studied. When performance appeared stable, prefeeding tests were conducted to assess resistance to change. Contrary to the generalized matching law, logarithms of response ratios in the two components were not a linear function of log reinforcer ratios, implying a failure of parameter invariance. Over a 2 log unit range, the function appeared linear and indicated undermatching, but in conditions with more extreme reinforcer ratios, approximate matching was observed. A model suggested by McLean (1991), originally for local contrast, predicts these changes in sensitivity to reinforcer ratios somewhat better than models by Herrnstein (1970) and by Williams and Wixted (1986). Prefeeding tests of resistance to change were conducted at each reinforcer ratio, and relative resistance to change was also a nonlinear function of log reinforcer ratios, again contrary to conclusions from previous work. Instead, the function suggests that resistance to change in a component may be determined partly by the rate of reinforcement and partly by the ratio of reinforcers to responses.     

Time-dependent adhesion of a polydimethylsiloxane (PDMS) elastomer film to a flat indenter tip characterized using a cohesive-zone law

The work of adhesion between a polydimethylsiloxane (PDMS) elastomer film and a flat diamond tip was measured by instrumented indentation. The results showed that the apparent work of adhesion between the tip and the PDMS film increases with increasing dwell time and retreating velocity; on the other hand, the indentation depth has no significant effect on adhesion. The indentation experiment was analysed with viscoelastic finite element simulations with rate-dependent cohesive elements, from which the time evolution of adhesion was quantitatively implemented into a rate-dependent cohesive-zone law.     

Christian Responses to the Political Challenge of Islam

The article provides an overview of the political dimension of Islam, drawing attention to the traditional understanding of Islam's fusion of the political and the religious. An assessment of both the historical roots of Islam and more contemporary Islam political theologies makes manifest the problematic and variegated nature of this assumption. The contemporary responses to Islam in the public square of three Christian theologians are then analysed in the light of the evident diversity of political Islam: Kenneth Cragg, Pope Benedict XVI, and Rowan Williams, drawing them into conversation with Oliver O'Donovan and John Milbank. They each offer complementary insights into theologies of the Church, the common good, Christian culture, sin, notions of power and the doctrine of God. This analysis highlights the need for a Christian political theology that can engage with Islam in all its diversity and yet challenge elements of Islamic voluntarism that are inhibitive of religious plurality.     

Pyrrhonism in the Political Philosophy of Thomas Hobbes

The importance of Pyrrhonism to Hobbes's political philosophy is much greater than has been recognized. He seems to have used Pyrrhonist arguments to support a doctrine of moral relativity, but he was not a sceptic in the Pyrrhonist sense. These arguments helped him to develop his teaching that there is no absolute good or evil; to minimise the purchase of natural law in the state of nature and its restrictions on the right of nature; virtually to collapse natural law into civil law; and to make the sovereign the political, moral and theological epicenter of his political system.     

A Differentiated Legal Approach to the Effects of Spousal Abuse on Children

Summary

In the past decade judges have started to recognize the destructive effects of spousal violence on children, but too many judges and justice system professionals still fail to take adequate account of spousal abuse when dealing with child related issues. Courts need to take a “differentiated” approach to spousal abuse, one that recognizes its different forms, nature and effects on adults and children, with a continuum of responses ranging from ordinary visitation, through supervision of exchanges or visitation, to termination of visitation. Canada should enact legislation that explicitly recognizes spousal abuse as a factor in child related disputes, increase education about domestic violence for judges and other justice system professionals, and provide more support for services such as supervised visitations programs. While this article focuses on Canadian developments and case law, there are similar issues in other countries.     

Female Offenders in Domestic Violence

SUMMARY

It is well accepted that large numbers of men batter women. Although some data also reveal that women report assaulting men in large numbers, interpretation of the latter data has been fraught with controversy. The present article reports on a sample of women arrested for domestic violence. When questions were asked about frequency of violence initiation, which partner began the overall pattern of violence in the relationship, and the women's reasons for using violence, it was found that about two-thirds of the women were battered and using violence to protect themselves or to retaliate for previous violence against them. Implications of these findings for conceptualizing women's violence as well as for training law enforcement personnel are discussed.