A Cross-Cultural Analysis of Early Prelinguistic Gesture Development and Its Relationship to Language Development

Many Western industrialized nations have high levels of ethnic diversity but to date there are very few studies which investigate prelinguistic and early language development in infants from ethnic minority backgrounds. This study tracked the development of infant communicative gestures from 10 to 12 months (n = 59) in three culturally distinct groups in the United Kingdom and measured their relationship, along with maternal utterance frequency and responsiveness, to vocabulary development at 12 and 18 months. No significant differences were found in infant gesture development and maternal responsiveness across the groups, but relationships were identified between gesture, maternal responsiveness, and vocabulary development.     

A schematic–Theoretic view of problem solving and development of algebraic thinking

This study explored the problem-solving schemas developed by 7th-grade pre-algebra students as they participated in a teaching experiment that was designed to help students develop effective schemas for solving algebraic problem situations involving contexts of (1) growth and change and (2) size and shape. This article describes the qualities and types of schemas that students developed through examples of problems used to develop schemas, examples of students' reasoning and writing, and excerpts from student interviews. Findings from the study indicated that there is a link between the type of generalizations students construct and the schemas they are forming. By using these schemas students recognize, extend, and generalize patterns and quantitative relationships both verbally and symbolically. This revised version was published online in July 2006 with corrections to the Cover Date.     

How prevalent are plagiarized submissions? Global survey of editors

Most analyses of plagiarism focus on published content and do not report on the prevalence of plagiarism in submitted articles. Fears over large‐scale plagiarism, particularly in articles submitted by authors for whom English is a second language, have only been investigated in small publishing communities or using duplication‐checking analysis, which does not separate legitimate from unacceptable duplication. This research surveyed journal editors from around the world to ascertain recent (past year) experiences of plagiarized and/or duplicated submissions. We then compared their experiences to their assumptions about global levels of plagiarism. The survey received 372 responses, including 119 from Asian editors, 112 from European editors, and 57 from editors in North America. The respondents estimated that c.15% of all submissions contained plagiarized or duplicated content, although their own experiences were in the range of 2–5% of submissions. Of the respondents, 42% reported no incidence of plagiarized or duplicated submissions in the past year. Asian editors experienced the highest levels of plagiarized/duplicated content, although most of the problem articles were resolved, indicating that most of the identified duplication constituted relatively minor problems, rather than fraudulent plagiarism.     

Neurosurgical treatment for addiction: lessons from an untold story in China and a path forward

Addiction is a major public-health crisis associated with significant disability and mortality. Although various pharmacological and behavioral treatments are currently available, the clinical efficacy of these treatments is limited. Given this situation, there is a growing interest in finding an effective neurosurgical treatment for addiction. First, we discuss the use of ablative surgery in treating addiction. We focus on the rise and fall of nucleus accumbens ablation for addiction in China. Subsequently, we review recent studies that have explored the efficacy and safety of deep-brain-stimulation treatment for addiction. We conclude that neurosurgical procedures, particularly deep-brain stimulation, have a potentially valuable role in the management of otherwise intractable addictive disorders. Larger well-controlled clinical trials, however, are needed to assess clinical efficacy and safety. We end by discussing several key issues involved in this clinical field and identifying some areas of progress.     

State-dependent retention induced by postacquisition exposure to pentobarbital or shock stress in rats

Although state-dependent retention (SDR) has been the focus of considerable research in recent years, there has been little work demonstrating this phenomenon when the treatment is administeredafter learning. In the present study, the effectiveness of two different treatments, pentobarbital and shock-induced stress, in producing postacquisition SDR in rats was examined. In all experiments, water-deprived rats were exposed to a novel flavor, apple juice, on each of 2 days. Subjects that remember their initial exposure to this substance should show an increase in consumption on their second exposure (i.e., an attenuation of neophobia). It was found that subjects exposed to pentobarbital (Experiment 1) or shock-induced stress (Experiment 2) immediately after their initial exposure did not increase their intake on the subsequent exposure unless they were reexposed to pentobarbital (Experiment 1) or shock-induced stress (Experiment 2b) shortly prior to that exposure. These results clearly show that this “attenuation of neophobia” paradigm can be used to investigate postacquisition SDR.     

The relationship of school‐wide Positive Behavior Support to academic achievement in an urban middle school

An emerging literature on school‐wide Positive Behavior Support (PBS) in urban settings suggests the utility of PBS in addressing student social development while decreasing the need for disciplinary actions (i.e., office disciplinary referrals [ODRs]). This research represents a significant addition to, and expansion of, this literature by examining the relationship of school‐wide PBS‐induced reductions in out‐of‐class referrals to student academic achievement. School‐wide PBS was implemented in an urban, inner‐city middle school in the Midwest over a 3‐year period. Data on ODRs, suspensions, standardized test scores, and treatment fidelity were gathered and analyzed. Results demonstrated significant reductions in ODRs and suspensions and increases in standardized math and reading scores. Additionally, regression analyses suggested a significant relationship between student problem behavior and academic performance. Treatment adherence to PBS procedures was significantly correlated with reductions in problem behavior. These findings are discussed in terms of helping urban schools address challenging behavior. © 2006 Wiley Periodicals, Inc. Psychol Schs 43: 701–712, 2006.     

Mentoring retrained teachers: extending the web

Novice teachers need support if they are to survive the reality of school. A web of relationships involving members of the school community, mentors outside the school community and a university tutor has been shown to be an effective way of providing this assistance. This article describes an extended web of assistance offered to a group of 11 teachers retrained to teach science. As they made the transition to science teaching these teachers identified a need for guidance and support in learning about a new subject and a new school environment. In some cases the school community was able to provide this guidance and support but in other cases the retrained teachers were met with scepticism by their fellow teachers and needed assistance from other sources. The extended web of relationships they accessed included district consultants provided by the employer, mentors located outside of the school, fellow graduates and a university tutor. All retrained teachers were also assisted in their development as reflective teachers by the production of a portfolio. The addition of an online component to the portfolio, allowing the sharing of ideas between the retrained teacher and the university tutor coordinating the program is proposed as a valuable component of the mentoring network.