A Relational Frame and Artificial Neural Network Approach to Computer-Interactive Mathematics

The Psychological Record - Fifteen participants unfamiliar with mathematical operations relative to reflections and vertical and horizontal shifts were exposed to an introductory lecture regarding...     

Death anxiety and sexual risk-taking: different manifestations of the process of defense

College students(n = 162) completed measures of death anxiety and sexual risk-taking, with a thought listing procedure in-between. Those who completed the death anxiety measure first (Death Salient condition) reportedgreater willingness to engage in high-risk sexual behavior than the Non-Death Salient group. This result was consistent with the hypothesis that evoking death anxiety would produce denial-based defensive activity. Also, Death Salient participants reporting more death thoughts were lower on risk-taking, as predicted. Interestingly, Death Salient participants reporting stressful thoughts about issues unrelated to personal mortality (displacement) were also less willing to engage in high-risk sexual behavior. The results are discussed in relation to a new, avowal-based model of the process of psychological defense.     

Sensitivity to the acoustic correlates of lexical stress and their relationship to reading in skilled readers

The role of suprasegmental information in reading processes is a growing area of interest, and sensitivity to lexical stress has been shown to explain unique variance in reading development. However, less is known about its role in skilled reading. This study aimed to investigate the acoustic features of suprasegmental information using a same/different cross-modal matching task. Sixty-four adult participants completed standardized measures of reading accuracy, reading speed, and comprehension and performed an experimental task. The experimental task required the participants to identify whether non-speech acoustic sequences matched the characteristics of written words. The findings indicated differences in responses depending on where the lexical stress was required for the word. Moreover, evidence was found to support the view that amplitude information is part of the word knowledge retrieval process in skilled reading. The findings are discussed relative to models of reading and the role of lexical stress in lexical access.     

A sex difference in effect of prior experience on object-mediated problem-solving in gibbons

Understanding the functionally relevant properties of objects is likely facilitated by learning with a critical role for past experience. However, current evidence is conflicting regarding the effect of prior object exposure on acquisition of object manipulation skills. This may be due to the influence of life history variables on the capacity to benefit from such experience. This study assessed effect of task-relevant object exposure on object-mediated problem-solving in 22 gibbons using a raking-in task. Despite not using tools habitually, 14 gibbons spontaneously used a rake to obtain a reward. Having prior experience with the rake in an unrewarded context did not improve learning efficiency in males. However, females benefitted significantly from the opportunity to interact with the rake before testing, with reduced latencies to solution compared to those with no previous exposure. These results reflect potential sex differences in approach to novelty that moderate the possible benefits of prior experience. Due to their relatively high energetic requirements, reproductively active females may be highly motivated to explore potential resources; however, increased investment in developing offspring could make them more guarded in their investigations. Previous exposure that allows females to learn of an object’s neutrality can offset this cautious exploration.     

‘Tell us what we need to know to do this!’ Preparing a path to safe uncertainty in assignment writing on a family therapy foundation course

This article describes a single session aimed at helping participants on a family therapy foundation course to move from a position of anxiety and discomfort about completing a written assignment to a position of safe uncertainty. Evaluation from the perspectives of course participants, course facilitators and assignment markers has shown participants engaging more enthusiastically with the writing of the assignment and expressing less anxiety about the process.     

The Ambivalence of Promising Technology

Issues of responsibility in the world of nanotechnology are becoming explicit with the emergence of a discourse on ‘responsible development’ of nanoscience and nanotechnologies. Much of this discourse centres on the ambivalences of nanotechnology and of promising technology in general. Actors must find means of dealing with these ambivalences. Actors’ actions and responses to ambivalence are shaped by their position and context, along with strategic games they are involved in, together with other actors. A number of interviews were conducted with industrial actors with the aim of uncovering their ethical stances towards responsible development of nanotechnology. The data shows that standard repertoires of justification of nanotechnological development were used. Thus, the industrial actors fell back on their position and associated responsibilities. Such responses reinforce a division of moral labour in which industrial actors and scientists can focus on the progress of science and technology, while other actors, such as NGOs, are expected to take care of broader considerations, such as ethical and social issues.     

Regional Analysis of Self‐Reported Personality Disorder Criteria

ABSTRACT Building on the theoretical work of Louis Guttman, we propose that the core problem facing research into the multidimensional structure of the personality disorders is not the identification of factorial simple structure but rather detailed characterization of the multivariate configuration of the diagnostic criteria. Dimensions rotated to orthogonal or oblique simple structure are but one way out of many to characterize a multivariate map, and their current near universal application represents a choice for a very particular set of interpretive advantages and disadvantages. We use multidimensional scaling and regional interpretation to investigate the structure of 78 self‐reported personality disorder criteria from a large sample of military recruits and college students. Results suggest that the criteria have a three‐dimensional radex structure that conforms only loosely to the 10 existing personality disorder (PD) categories. Regional interpretation in three dimensions elucidates several important aspects of PDs and their interrelationships.     

When Effort is Threatening: The Influence of the Belief in a Just World on Americans' Attitudes Toward Antipoverty Policy

In the political context of the reauthorization of federal welfare reform legislation, a nationally representative sample of 1,570 adults in the United States completed a survey examining the factors that affect attitudes and policy preferences with regard to aid for low-income individuals and families in the United States. This study utilized an innovative survey technique, the factorial survey methodology (Rossi & Nock, 1982), which allows for the simultaneous experimental manipulation of a large number of factors through the use of a vignette. This research demonstrates how the portrayal of difficulties faced by people in need and the ways in which they attempt to overcome these difficulties affect support for policies designed to aid low-income individuals and families. In addition, this study of public attitudes considers the role that psychological orientations of the evaluators play in judgments of families in need. In this case, we examined how the evaluators' belief that the world is a just place influences their evaluations of deservingness. Consistent with our expectations, we found that the more efforts the vignette subject engaged in improving her situation, the less deserving of government benefits she was judged to be by respondents with a strong belief in a just world. The reverse was found among respondents with a weaker belief: more efforts were associated with greater judgments of deservingness.     

Stripes within words affect reading

In a series of eight studies it is shown that the first peak in the horizontal autocorrelation of the image of a word (which captures the similarity in shape between the neighbouring strokes of letters) determines (i) the appearance of the words as striped; (ii) the speed with which the words are read, both aloud and silently; and (iii) the speed with which a paragraph of text can be searched. By subtly distorting the horizontal dimension of text, and thereby reducing the first peak in the horizontal autocorrelation, it is shown that the speed of word recognition can be increased. The increase in speed is greater in poor readers.