Fluency disorders in genetic syndromes

The characteristics of various genetic syndromes have included “stuttering” as a primary symptom associated with that syndrome. Specifically, Down syndrome, fragile X syndrome, Prader-Willi syndrome, Tourette syndrome, Neurofibromatosis type I, and Turner syndrome all list “stuttering” as a characteristic of that syndrome. An extensive review of these syndromes indicated clients diagnosed with these syndromes do show evidence of nonfluency patterns, but not all would be considered stuttering. Many of the syndromes are marked by degrees of mental retardation that probably contribute to a higher than average prevalence of stuttering, as well as a higher than average prevalence of other fluency disorders (when compared to the population at large).

An in-depth analysis of the available data indicates that some of these genetic syndromes show patterns of stuttering that may be indicative of only that syndrome (or similar syndromes) that can be differentially diagnosed from developmental stuttering. Among these patterns are the word-final nonfluencies noted in Prader-Willi syndrome; the presence of stuttering in the absence of secondary behaviors noted in Prader-Willi syndrome and; the presence of palilalia, word-final and word-medial nonfluencies, and word-medial and word-final nonfluencies in Tourette syndrome. Implications for future research are discussed in light of these findings.

Educational objectives: The reader will be able to: (1) describe the various different genetic syndromes that are associated with fluency disorders; (2) describe the types of nonfluencies that are associated with the major types of genetic syndromes that have fluency disorders; (3) describe the behaviors that may assist in differentially diagnosing different types of speech characteristics associated with various genetic syndromes.     

Exercise commitment and proneness to eating disorders in a group of physical education teachers

The study examined the association of exercise commitment with proneness to eating disorders in 50 physical education teachers who had been practicing various aerobic sports at least three times a week for at least 5 years. Significant coefficients were found between Commitment to Exercise Scale scores, the number of weekly training sessions, and scores on the Eating Disorders Inventory-2 scales measuring Maturity Fears, Social Insecurity, Perfectionism, and Asceticism. However, no relationship was found between the Commitment to Exercise Scale and the Eating Disorders Inventory-2 variables measuring anorexic tendencies (such as Drive for Thinness, Body Dissatisfaction, and Bulimia). Findings suggest the presence of some psychological factors common to both anorexic tendencies and excessive exercising but not complete overlap, so a rather more complex pattern of relationships appears to be mediated by sex and personality characteristics.     

Fluency and fluency disorders: Their definition,measurement, and modification

Attempts at designing clinical procedures that would directly enhance fluency in disfluent speakers have been increased in the recent past. However, some of the basic problems relating to the definition, measurement, and modification of fluency and fluency disorders have not received much systematic attention. Some of these problems are examined in this article with a view to identify important research and clinical needs. Published studies on fluency therapy are also reviewed.     

A Multinomial Model to Assess Fluency and Recollection in a Sequence Learning Task

We suggest that well-formedness judgements in conjunction with L.L. Jacoby's (1991) process dissociation procedure and an appropriate measurement model can be used to obtain measures of implicit and explicit sequence knowledge. We introduce a new measurement model designed specifically for the sequence learning task. The model assumes that sequence identification is based on recollection, perceptual or motor fluency, systematicity detection, and guessing. The model and the application of the process dissociation procedure were empirically evaluatedusing auditory eventsequences. In Experiment 1, the parameterreflecting recollection was higher in an intentional than in an incidental learning condition. Experiment 2 showed that random sequences interspersed among the systematic sequences during the acquisition phase may change this pattern of results. A manipulation of processing fluency in Experiment 3 was reflected in the appropriate model parameter. In sum, the new measurement model and the application of the process dissociation procedure appear to be useful tools in sequence learning research.     

An Intervention Program to Increase Reading Fluency

Abstract

This study investigated the effects of a self-modeling/ self-monitoring intervention to increase oral reading fluency in 5 elementary school students. Initially, students were videotaped reading from grade-appropriate text. The videotape was then edited to create a self-modeling intervention tape of approximately 5-minutes in duration, depicting the students reading in a fluent manner. The edited videotape was shown back to the students on two occasions in order to initiate the self-modeling intervention. Following this, students were videotaped reading 1-minute reading passage probes and these videotapes, without editing, were then shown back to the students during each subsequent session. The videotapes were viewed by the students twice weekly for a period of 4 weeks. To promote self-monitoring, after each passage reading session students were provided with performance feedback in the form of words correct per minute (WCPM) and progress toward their long-term goal. Results indicated increases in growth of oral reading rate overtime with concomitant advances in instructional placement criteria.     

Managing organizational commitment: Insights from longitudinal research

This article summarizes what is known about the active management of affective organizational commitment (AOC) through a review of 58 studies employing longitudinal research designs. The review yields six broad categories of antecedents that have empirically demonstrated effects on AOC: socialization practices, organizational changes, human resource practices, interpersonal relations, employee–organizational relations, and a residual “other” category. Insights from the review include (a) that perceptions of personal attachment to the organization are among the most substantiated (but tenuous) strategies for enhancing AOC, (b) that theorizing and research efforts have focused almost exclusively on achieving high levels of AOC, and (c) organizations have been reticent to address situations when AOC is low. Implications and recommendations for the theoretical, research and practical advancement of AOC are offered.     

Civil commitment: A review of empirical research

This article presents a comprehensive review of empirical micro-level research which has attempted to evaluate changes in civil commitment law in the United States. It groups studies by category of the general question they address: Who are being processed through civil commitment and who are being committed? How dangerous are civil commitment candidates on admission, in the hospital, and after release? To what extent are court officers adhering to procedural protections in form and in intent? To what extent have restrictive criteria influenced the behavior of medical professionals in processing individuals through civil commitment? and What happens to individuals after their civil commitment experience and their involuntary hospitalization? The article points to needed research and concludes by summarizing existing research from the perspective of finding a balance between civil liverty and benevolence.     

Risk-factor research and prevention programs for anxiety disorders: a translational research framework

The aim of the present essay is to discuss the interconnection between risk-factor research and prevention program development for panic-spectrum psychopathology. We argue that prevention of panic-spectrum psychopathology specifically, and anxiety disorders more generally, is likely to be best advanced through active, systematic translation of basic, risk-factor research. After operationalizing key terminology, we present some exemplar risk-factor candidates for panic-spectrum psychopathology, summarize research related to their role as risk-factors for panic problems, and link this discussion to risk-factor nomenclature. We then present a translational framework for extrapolating extant knowledge on these and other potential risk-factors for panic-spectrum psychopathology with respect to the development of preventative interventions. The proposed translational framework is intended to describe a forward-feeding process by which risk-factor research could be used by clinical researchers to inform prevention programs; and reciprocally, how such prevention knowledge could be most effectively utilized to drive new, clinically focused risk-factor research.     

Computers and commitment to a public management decision: An experiment

Based on results of an experiment, hypotheses are tested concerning the effects of computer use on decision commitment. The experiment required subjects to make an adoption decision regarding a hypothetical government agency's innovation. Subjects could choose from a variety of information sets, some computer based, some not, before making the decision. After their decision the subjects were given “new evidence” that contradicted their initial position. Two experimental treatments included more difficult access to the computer-based information and higher cost for the computer-based information. Results indicate that access difficulty diminishes confidence in decisions and leads to lesser commitment. However, the cost of the computer information seems to have little bearing on decision commitment. Barry Bozeman is director of the Technology and Information Policy Program of the Maxwell School of Public Affairs, Syracuse University, Syracuse NY 13244-4010. There he is professor of public policy and administration and affiliate professor of engineering. His research has focused on organization theory and public management, science and technology policy, and the use of technical information in decision-making. R.F. Shangraw, Jr. is vice president of Independent Project Analysis, Inc., Great Falls, Virginia. Previously, he was assistant professor of public administration at Syracuse University. His research interests include information management, decision-making, and public policy applications of expert systems.     

The Contributions of Oral and Silent Reading Fluency to Reading Comprehension

Silent reading fluency has received limited attention in the school-based literatures across the past decade. We fill this gap by examining both oral and silent reading fluency and their relation to overall abilities in reading comprehension in fourth-grade students. Lower-level reading skills (word reading, rapid automatic naming) and vocabulary were included in structural equation models in order to determine their impact on reading fluency and comprehension. Results suggested that oral and silent reading fluency represent separate constructs, but only oral reading fluency contributed to reading comprehension. Vocabulary was found to contribute uniquely to comprehension even after controlling for reading fluency.     

Fluency misattribution and visual hindsight bias

We tested a fluency-misattribution theory of visual hindsight bias, and examined how perceptual and conceptual fluency contribute to the bias. In Experiment 1a observers identified celebrity faces that began blurred and then clarified (Forward baseline), or indicated when faces that began clear and then blurred were no longer recognisable (Backward baseline). In surprise memory tests that followed, observers adjusted the degree of blur of each face to match what the faces looked like when identified in the corresponding baseline condition. Hindsight bias was observed in the Forward condition: During the memory test observers adjusted the faces to be more blurry than when originally identified during baseline. These same observers did not show hindsight bias in the Backward condition: Here, they adjusted faces to the exact blur level at which they identified the faces during baseline. Experiment 1b tested a combined condition in which faces were viewed in a Forward progression at baseline but in a Backward progression at test. Hindsight bias was observed in this condition but was significantly less than the bias observed in the Experiment 1a Forward condition. Experiments 1a and 1b provide support for the fluency-misattribution account of visual hindsight bias: When observers are made aware of why fluency has been enhanced (i.e., in the Backward condition) they are better able to discount it, and as a result show reduced or no hindsight bias. In Experiment 2, observers viewed faces in a Forward progression at baseline and then in a Forward upright or inverted progression at test. Hindsight bias occurred in both conditions, but was greater for upright than inverted faces. We conclude that both conceptual and perceptual fluency contribute to visual hindsight bias.     

Fluency misattribution and auditory hindsight bias

We conducted three experiments to test the fluency-misattribution account of auditory hindsight bias. According to this account, prior exposure to a clearly presented auditory stimulus produces fluent (improved) processing of a distorted version of that stimulus, which results in participants mistakenly rating that item as easy to identify. In all experiments, participants in an exposure phase heard clearly spoken words zero, one, three, or six times. In the test phase, we examined auditory hindsight bias by manipulating whether participants heard a clear version of a target word just prior to hearing the distorted version of that word. Participants then estimated the ability of naïve peers to identify the distorted word. Auditory hindsight bias and the number of priming presentations during the exposure phase interacted underadditively in their prediction of participants’ estimates: When no clear version of the target word appeared prior to the distorted version of that word in the test phase, participants identified target words more often the more frequently they heard the clear word in the exposure phase. Conversely, hearing a clear version of the target word at test produced similar estimates, regardless of the number of times participants heard clear versions of those words during the exposure phase. As per Roberts and Sternberg’s (Attention and Performance XIV, pp. 611–653, 1993) additive factors logic, this finding suggests that both auditory hindsight bias and repetition priming contribute to a common process, which we propose involves a misattribution of processing fluency. We conclude that misattribution of fluency accounts for auditory hindsight bias.     

On terms and procedures: Fluency

Fluency is a metaphor for flowing, effortless, well-practiced, and accurate performance. Current practice in fluency building involves increasing the frequency of free-operant performances. Free-operant performance is defined as continuous responding in the presence of discriminative stimuli that are either varied or not varied from response to response. Free-operant performance is also distinguished from discrete-trial performance. Frequency-building procedures are also described, including defining the learning channel and stimulus control topography of a component performance (called a pinpoint), selecting an appropriate timing period, and displaying stimuli so that no performance ceilings occur. During frequency building, frequencies of pinpoints are continuously charted on standard celeration charts. Frequencies are increased to empirically derived performance standards, or aims, that predict retention, endurance, stability, application, and adduction of performance. Frequency is also described as a dimension of performance, not simply its measurement. Frequency building is described as possibly facilitating contingency adduction.