Hope for the Worst: Occasional Reinforced Extinction and Expectancy Violation in the Treatment of OCD

An inhibitory learning conceptualization of treatment mechanisms in exposure-based therapy appears to better account for durability of symptom reduction and index overall learning. Presented here is an overview of two core elements of inhibitory learning, expectancy violation and occasional reinforced extinction, as they are thought to function in exposure and response prevention (ERP) for OCD. The overview is then followed by case examples illustrating these processes at work in a naturalistic clinical setting. Implications for treatment are broadly discussed.     

Gender Essentialism and Responses to Candidates’ Messages

People often form negative attitudes against those who deviate from gender norms. Within the political realm, this has the potential to translate into effects on perceptions of candidate likability and traits. Female candidates who tend to focus on issues stereotypically thought of as feminine are generally more positively evaluated than those who focus on stereotypically masculine domains. The current studies investigate whether these effects vary depending on the extent to which people endorse gender essentialism, which is the tendency to attribute gender differences to relatively more intrinsic, innate, and immutable factors versus believing that gender differences are largely due to cultural and learned factors. Current data with adults across two studies suggest a number of interesting findings: Evaluations of candidates depended on an interaction between respondents’ gender essentialism and whether or not the candidate’s message fit traditional stereotypes. In particular, high essentialist respondents felt significantly more negative toward male candidates with nonstereotypic messages.     

Visual versus kinesthetic mental imagery: Efficacy for the retention and transfer of a closed motor skill in young children

The main purposes of this study were (a) to compare the effects of mental imagery combined with physical practise and specific physical practise on the retention and transfer of a closed motor skill in young children; (b) to determine the mental imagery (visual vs. kinesthetic), which is the most efficient for retention and transfer of a closed motor skill; and (c) to verify the relationship between movement image vividness and motor performance. As for the secondary purpose, it was to compare the effects of gender on motor learning. Participants (n = 96) were selected from 3 primary schools. These participants were divided into 6 groups and submitted to different experimental conditions. The experimental task required the participants to throw, with the nondominant hand (left hand), a ball toward a target composed of 3 concentric circles. The results demonstrated that performance obtained by the mental imagery (visual or kinesthetic) combined with physical practise group was, during the retention phase, equivalent to that produced by the specific physical practise group but significantly superior during the transfer of closed motor skill. These results showed the potential benefits of mental imagery as a retention strategy intended for motor skills and performance enhancement. Such results could be explained by the similarity of 3 principal functional evidences shared by mental and physical practise: behavioural, central, and peripheral (as suggested by Holmes & Collins, 2001). (PsycINFO Database Record (c) 2008 APA, all rights reserved).     

Historicism,Entrenchment, and Conventionalism

W. V. Quine famously argues that though all knowledge is empirical, mathematics is entrenched relative to physics and the special sciences. Further, entrenchment accounts for the necessity of mathematics relative to these other disciplines. Michael Friedman challenges Quine’s view by appealing to historicism, the thesis that the nature of science is illuminated by taking into account its historical development. Friedman argues on historicist grounds that mathematical claims serve as principles constitutive of languages within which empirical claims in physics and the special sciences can be formulated and tested, where these mathematical claims are themselves not empirical but conventional. For Friedman, their conventional, constitutive status accounts for the necessity of mathematics relative to these other disciplines. Here I evaluate Friedman’s challenge to Quine and Quine’s likely response. I then show that though we have reason to find Friedman’s challenge successful, his positive project requires further development before we can endorse it.     

Paradigm Shift in Theological Education in Southern and Central Africa and its Relevance to Ministerial Formation

Theological education is of crucial importance in the mission of the Church in Southern and Central Africa. This paper discusses the changes that have taken place in theological education in post‐independence Africa. The author argues that theological education during the colonial period was Euro‐centric. As a result, it did not respond adequately to the pressing problems faced by the African people such as colonial oppression, poverty, patriarchy and others. However, the situation has changed dramatically in modern times. Theological educators have realized the significance and importance of context in theological education. They are, thus, seriously taking into account the political, social, economic and religious context in which the African people live today. This has led to the creation of different theologies that are in line with modern and post‐modern challenges facing the African people thereby making the church both relevant and necessary.     

The motivations for Walter Burley’s theory of the proposition

Walter Burley (born c. 1275; died. c. 1344) claims throughout his career that the mind can make a statement (propositio) out of things. Since things include entities that exist outside of the mind, Burley appears to be claiming that the mind can form a statement out of things that exist outside of it. Most scholars of Burley offer a deflationary reading of this claim, arguing that it confuses two distinct but closely related philosophical issues: the nature of propositional content, on the one hand, and the role of facts in a compelling account of truth, on the other. But I argue that Burley means exactly what he says: that the mind can, quite literally, form statements out of things that exist outside of it. In Burley’s account, statements of this sort function as the propositional contents of our thoughts and written or uttered sentences. This account of propositional content is motivated by three more fundamental theses to which Burley is committed: referentialism, compositionality, and a claim about truth-conditionality I call intellectualism.     

Luther’s call and nitrogen narcosis

During 1505–1506, Martin Luther, then vacillating about a “call” to the religious life and/or the priesthood, underwent spiritual revelations during thunderstorms. This paper proposes that, in addition to theological and psychopathological interpretations, a neurochemical interpretation suggests itself, since severe thunderstorms trigger the rapid release of nitrogen into the atmosphere, producing in some people a condition termed “nitrogen narcosis,” clinically akin to acute alcoholic intoxication.     

Image control from childhood to adolescence

Despite the recognized importance of imagery use by children as well as the developmental relevance for maturity and health of imagery properties such as vividness and control, only a few studies have investigated imagery of children. The aim of the present study was to examine the development of control of mental images in a sample of boys and girls aged 7 to 17 years. Children were assessed on two aspects of mental imagery, vividness and control, and teachers were asked to rate the children's intellectual and socioemotional performance. Analysis showed that the capacity for image control increased in adolescence and that children characterized by vivid and uncontrolled imagery received the lowest ratings from teachers, whereas those with nonvivid and controlled imagery received the highest ratings. The implications of these results were discussed in relation to normal and abnormal development as well as suggestions for research.     

Bayesian theories of conditioning in a changing world

The recent flowering of Bayesian approaches invites the re-examination of classic issues in behavior, even in areas as venerable as Pavlovian conditioning. A statistical account can offer a new, principled interpretation of behavior, and previous experiments and theories can inform many unexplored aspects of the Bayesian enterprise. Here we consider one such issue: the finding that surprising events provoke animals to learn faster. We suggest that, in a statistical account of conditioning, surprise signals change and therefore uncertainty and the need for new learning. We discuss inference in a world that changes and show how experimental results involving surprise can be interpreted from this perspective, and also how, thus understood, these phenomena help constrain statistical theories of animal and human learning.