Childhood stuttering and dissociations across linguistic domains

The purpose of this investigation was to evaluate the possible presence of dissociations in the speech and language skills of young children who do (CWS) and do not stutter (CWNS) using a correlation-based statistical procedure [Bates, E., Appelbaum, M., Salcedo, J., Saygin, A. P., & Pizzamiglio, L. (2003). Quantifying dissociations in neuropsychological research. Journal of Clinical and Experimental Neuropsychology, 25, 1128-1153]. Participants were 45 preschool CWS and 45 CWNS between the ages of 3;0 and 5;11 (years;months), with the two groups matched by age, gender, race, and parental socioeconomic status. Children participated in a parent-child interaction for the purpose of disfluency analysis and responded to four standardized speech-language tests for subsequent analyses as main dependent variables. Findings indicated that CWS were over three times more likely than CWNS to exhibit dissociations across speech-language domains, with 44 cases of dissociation for CWS and 14 for CWNS across 10 possible comparisons. Results suggest that there may be a subgroup of CWS who exhibit dissociations across speech-language domains, which may result in a greater susceptibility to breakdowns in speech fluency. EDUCATIONAL OBJECTIVES: The reader will be able to: (1) summarize findings from previous studies examining differences in speech and language performance between children who do and do not stutter; (2) describe what is meant by "dissociations" in the speech and language skills of young children who do and do not stutter; and (3) discuss three hypotheses that could account for the present findings that suggest CWS, more often than CWNS, exhibit dissociations in their speech-language system.     

Contextual Competence: Multiple Manifestations Among Urban Adolescents

The authors develop and validate multidimensional and contextual profiles of competence among low-income, urban, middle adolescents (N = 560). The assessment of contextual competence was based on youth self-reports of involvement, performance, and relationship quality in the peer, school, athletic, employment, religious, and cultural contexts. A principal components analysis of these engagement indices revealed the six expected components with the addition of a component labeled self-in-context. To identify holistic, multidimensional profiles of contextual competence, scores along the seven domains were cluster analyzed. Nine clusters emerged, each representing a distinct constellation of youth experience. Profiles were associated with demographic variables and youth adjustment. Profiles reflecting high engagement in two or more contexts predicted higher self-esteem and lower depression. In contrast, profiles marked by high engagement in the contexts of athletics or employment predicted more serious delinquency. The authors discuss the implications of these findings for future research and intervention.     

Women Behaving Badly: Gender and Aggression in a Military Town, 1653–1781

Magistrates records from the English town of Portsmouth show the towns women to have been exceptionally violent. Women accounted, on average, for just over 31% of all assaults on record for the years 1653 to 1781. We used a combination of quantitative and qualitative methods to compare the fighting styles of men and women and to examine the extent to which these were gendered. Particular attention was paid to levels of violence between pairs of brawlers. The most common form of violence was male-on-male (2,666 cases), followed by female-on-female (1,690), male-on-female (1,675), and female-on-male (299). Of these pairings, female-on-male assaults were the most violent, as measured by the types of weapons used by the aggressors, and female-on-female pairings were the least violent.Funding was provided by grant 410-2000-0467 from the Social Sciences and Humanities Research Council of Canada. The authors are profoundly grateful to the gracious and highly capable staff of Portsmouths Museums and Records Service, including, most notably, Michael Gunton, Diana Gregg, Donna Malcolmson, and Sarah Speller. Special thanks also go to the team of volunteers who transcribed the towns sessions papers, thus greatly facilitating our entry of the same into a database. They were, in alphabetical order, Kate Beatty, Barbara Gower, Ursula Heinrich, Pam Honeysett, George Hothersall, Marjorie Hothersall, Una Lowe, Betty Richardson, Marjorie Ripper, and Brenda Whorton. There was one other volunteer: an inmate at the Kingston Prison just outside Portsmouth. Back in Toronto, several more people assisted in entering the records into a database. They were, in alphabetical order, Joanne Cordingley, James Hewitson, Allyson Lunny, Yvonne Pelletier, and Victoria Vaag.     

Cystic Fibrosis Prenatal Screening in Genetic Counseling Practice: Recommendations of the National Society of Genetic Counselors

For over a decade, prenatal screening for cystic fibrosis (CF) has been considered a model for the integration of genetic testing into routine medical practice. Data from pilot studies and public policy discourse have led to recommendations by some professional organizations that CF screening should be offered or made available to pregnant women and their partners, and to couples planning a pregnancy. It is crucial that genetic counselors gain thorough understanding of the complexities of CF and the implications of positive test results, so that they may serve as a reliable, educated referral base and resource for health care providers and their patients. While not all pregnant women will be referred for genetic counseling prior to CF carrier testing, genetic counselors often will be asked to counsel clients after they have a positive test result, or who are found to be at increased risk. Genetic counselors can play an important role in providing accurate and current information as well as support for patients informed decisions. These recommendations were created by a multicenter working group of genetic counselors with expertise in CF and are based on personal clinical experience, review of pertinent English language medical articles, and reports of expert committees. The recommendations should not be construed as dictating an exclusive course of management, nor does the use of such recommendations guarantee a particular outcome. These recommendations do not displace a health care providers professional judgment based on the clinical circumstances of a particular client.     

Transgenic mice expressing a truncated form of CREB-binding protein (CBP) exhibit deficits in hippocampal synaptic plasticity and memory storage

Deletions, translocations, or point mutations in the CREB-binding protein (CBP) gene have been associated with Rubinstein-Taybi Syndrome; a human developmental disorder characterized by retarded growth and reduced mental function. To examine the role of CBP in memory, transgenic mice were generated in which the CaMKII alpha promoter drives expression of an inhibitory truncated CBP protein in forebrain neurons. Examination of hippocampal long-term potentiation (LTP), a form of synaptic plasticity thought to underlie memory storage, revealed significantly reduced late-phase LTP induced by dopamine-regulated potentiation in hippocampal slices from CBP transgenic mice. However, four-train induced late-phase LTP is normal. Behaviorally, CBP transgenic mice exhibited memory deficits in spatial learning in the Morris water maze and deficits in long-term memory for contextual fear conditioning, two hippocampus-dependent tasks. Together, these results demonstrate that CBP is involved in specific forms of hippocampal synaptic plasticity and hippocampus-dependent long-term memory formation.     

Lateralised processing of the internal and the external facial features of personally familiar and unfamiliar faces: a visual half-field study

In this visual half field (VHF) experiment, we investigated possible differences between the left and the right hemisphere in the processing of the internal and external features of familiar and unfamiliar faces. Previous studies using famous and unknown faces had indicated that both hemispheres use the same qualitative mode of processing with the internal features being more important for the perception of familiar faces. In this experiment, personally familiar faces rather than famous faces are used. There are several, mainly methodological, reasons why personally familiar faces are more appropriate stimuli to investigate face processing. The results of the present study showed that no overall visual field effect occurred, but more importantly, that face processing in the left hemisphere differed qualitatively from that in the right hemisphere. The theoretical repercussions of these findings are discussed.     

Epistemology and School Counseling

Because a counselor's interactions with his clients should be an out-growth of his philosophical commitments, he must grapple with certain epistemological questions: (a) Can human beings know the extramental world or merely their own ideas? (b) Is human knowledge a valid representation of the extramental world? (c) Can human beings reach agreement about the nature of extramental realities? The counselor can assume two possible stances. First, there is the “realist” position which states that there is an extramental world, we can achieve valid knowledge of it, and the knowledge of various observers can agree. Second is the “phenomenalist” position: There is an extramental world, but no one can achieve valid knowledge of it, nor can various observers easily agree regarding its nature. The realist counselor should help his client perceive his problem situation as it “really” is and as it appears to others. The phenomenalist counselor cannot do this instead, he can only try to enter the client's subjectivity and to help him deepen and enrich his unique perception of the problem situation.     

A comparison of two types of extinction following fixed-ratio training

Five groups of pigeons were food reinforced on various schedules. Half of each group were extinguished in the normal manner; the others were presented with a stimulus change, previously paired with reinforcement, each time they completed their respective fixed ratios. Response rate in training was an increasing negatively accelerated function of the FR. Increasing the FR produced transitory rate changes, the amount of which yielded a quantitative index of ratio strain. Cumulative records of extinction performance revealed that the stimulus change exerted discriminative control by maintaining the cohesiveness of FR response units. Nevertheless, neither the absolute number of extinction responses nor extinction response units differed appreciably for the two extinction procedures.