Effects of Lipopolysaccharide on Consolidation of Partial Learning in the Y-Maze

Research on consolidation of long-term memory suggests that acute immune system activation induced by endotoxin lipopolysaccharide (LPS) may disrupt consolidation of newly acquired learning. Adult male Sprague-Dawley rats were trained to perform a simple Y-maze task and were immediately afterwards administered LPS (15 microg/kg) or saline. After a seven-day interval, subjects were returned to the Y-maze and were retrained to criterion. It was found that subjects treated with saline required significantly fewer trials to relearn the task relative to the LPS group and a no-partial-learning control group, which themselves did not differ. These results are most readily explained in terms of a disruptive effect of acute immune system activation on consolidation of newly induced acquired memories.     

Exploring the Public Understanding of Basic Genetic Concepts

It is predicted that the rapid acquisition of new genetic knowledge and related applications during the next decade will have significant implications for virtually all members of society. Currently, most people get exposed to information about genes and genetics only through stories publicized in the media. We sought to understand how individuals in the general population used and understood the concepts of “genetics” and “genes.” During in-depth one-on-one telephone interviews with adults in the United States, we asked questions exploring their basic understanding of these terms, as well as their belief as to the location of genes in the human body. A wide range of responses was received. Despite conversational familiarity with genetic terminology, many noted frustration or were hesitant when trying to answer these questions. In addition, some responses reflected a lack of understanding about basic genetic science that may have significant implications for broader public education measures in genetic literacy, genetic counseling, public health practices, and even routine health care.     

Task analysis,correspondence training,and general case instruction for teaching personal hygiene skills

The effect of a 10‐step task analysis, general case instruction, and correspondence training was evaluated for teaching appropriate personal hygiene following bowel movements. Correspondence training maintained a central role in this study. According to Israel (1978), the relationship between an individual's verbal and nonverbal behaviors is influential in self‐instruction training. Essentially, correspondence training encourages an individual to generate his or her own instructional cues; in consequence, the procedure can be instrumental in ensuring the maintenance and generalization of important verbal and nonverbal behavior. Three adults with developmental disabilities participated in this study. The dependent variables included the level of assistance required on each step of the task analysis and an end of sequence rating on a three‐point Likert‐type cleanliness scale. Results showed that all three participants learned to care for themselves appropriately following bowel movements. Moreover, the skills generalized to other settings and were maintained over a nine‐month period. The target skill was evaluated against the five criteria for a behavioral cusp and met the criteria for ‘an important behavior change’ (Bosch & Fuqua, 2001, p. 123). Copyright © 2004 John Wiley & Sons, Ltd.     

Learning and understanding in virtual teams.

There are sufficient reasons to conclude that virtual education is not just hype. There are, among others, economic motivations such as bringing one learning module to a larger audience of learners, and pragmatic reasons such as achieving flexibility in time and space for learning, which is especially important for adult learners. However, from a pedagogic point of view there are some doubts. Current technologies meant for learning and working in teams are often designed for functional collaboration (e.g., sharing documents, communicating), but fail to support learning, understanding and team forming (e.g., carrying out pedagogically adequate tasks, understanding each other's work and group dynamic processes) in virtual teams. In order to understand virtual teams, we need to know how we can study learning and understanding in virtual teams. Interesting research questions are: Which concepts are important in understanding virtual teams? How can we measure those concepts, and in what type of setting (e.g., experimental study, case study)? The aim of this special issue is to provide and discuss concepts and pragmatic insights in research on learning and understanding in virtual teams. The aim of this article is to set the stage for those articles.     

Towards a Sociological turn in Contextualist Moral Philosophy

Contextualist moral philosophers criticise hands-off liberal theories of justice for abstracting from the cultural context in which people make choices. Will Kymlicka and Joseph Carens, for example, demonstrate that these theories are disadvantageous to cultural minorities who want to pursue their own way of life. I argue that Pierre Bourdieu's critique of moral reason radicalises contextualist moral philosophy by giving it a sociological turn. In Bourdieu's view it is not enough to provide marginalised groups or subgroups with equal access to public institutions and specific cultural rights—in some cases this may in fact be detrimental. He contends that scientists, politicians and other intellectuals have a duty to take seriously the social presuppositions of free deliberate choice and public opinion and to support cultural minorities with instruments to liberate themselves from their often precarious situation.     

Touched by water: The body in scuba diving

Focusing on the leisure practice of scuba diving, I examine how ’touch’ works as a sense experienced through material engagement with the aquatic world for both physical and metaphorical effect. Technologically facilitated and environmentally positioned, scuba diving brings together the distal and the proximate to produce a particular experience of space and a particular mobilisation of emotion. The paper positions itself within the conceptual context of embodiment in order to consider corporeality in terms of its visceral and material capacities that effect and direct movement, as well as the experience of the sensuous via an engagement with the diving environment. In doing so, it draws upon work within the social sciences that has acknowledged the importance of an embodied engagement with environments that are seen as therapeutic or restorative for their ability to instil a sense of well-being and calm through a re-centering of the self. Drawing out the meditative capacities of scuba diving, the paper considers the aquatic world as, for some divers, a therapeutic landscape.     

Spatial anxiety relates to spatial abilities as a function of working memory in children

Spatial ability is a strong predictor of students' pursuit of higher education in science and mathematics. However, very little is known about the affective factors that influence individual differences in spatial ability, particularly at a young age. We examine the role of spatial anxiety in young children's performance on a mental rotation task. We show that even at a young age, children report experiencing feelings of nervousness at the prospect of engaging in spatial activities. Moreover, we show that these feelings are associated with reduced mental rotation ability among students with high but not low working memory (WM). Interestingly, this WM?×?spatial anxiety interaction was only found among girls. We discuss these patterns of results in terms of the problem-solving strategies that boys versus girls use in solving mental rotation problems.     

Parafoveal processing in reading

The present review summarizes research investigating how words are identified parafoveally (and foveally) in reading. Parafoveal and foveal processing are compared when no other concurrent task is required (e.g., in single-word recognition tasks) and when both are required simultaneously (e.g., during reading). We first review methodologies used to study parafoveal processing (e.g., corpus analyses and experimental manipulations, including gaze-contingent display change experiments such as the boundary, moving window, moving mask, and fast priming paradigms). We then turn to a discussion of the levels of representation at which words are processed (e.g., orthographic, phonological, morphological, lexical, syntactic, and semantic). Next, we review relevant research regarding parafoveal processing, summarizing the extent to which words are processed at each of those levels of representation. We then review some of the most controversial aspects of parafoveal processing, as they relate to reading: (1) word skipping, (2) parafoveal-on-foveal effects, and (3) n + 1 and n + 2 preview benefit effects. Finally, we summarize two of the most advanced models of eye movements during reading and how they address foveal and parafoveal processing.