Auditory Perception, Phonological Processing, and Reading Ability/Disability

1993 ◽  
Vol 36 (4) ◽  
pp. 850-863 ◽  
Author(s):  
Betty U. Watson ◽  
Theodore K. Miller
Keyword(s):  
Speech Perception ◽  
Phonological Processing ◽  
Auditory Perception ◽  
Reading Ability ◽  
Structural Equation ◽  
Critical Role ◽  
Structural Equations ◽  
Auditory Memory ◽  
Skilled Reading ◽  
Phonological Abilities

Auditory perception has been proposed as one source of individual variation in the phonological abilities that play a critical role in skilled reading as well as in reading disabilities. A structural equation approach (LISREL, Jöreskog & Sörbom, 1990) was used to analyze relationships among auditory perception, phonological processing, and reading in a sample of 94 college undergraduates, 24 of whom met specific criteria for a reading disability. In the mathematical model that proved to be the best fit to the data, speech perception was strongly related to three of four phonological variables including short- and long-term auditory memory and phoneme segmentation. These phonological variables in turn were strongly related to reading. Nonverbal temporal processing was not significantly related to any of the phonological variables in the structural equations. It was concluded that speech perception, which was measured with speech repetition, syllable sequence discrimination, and degraded speech tasks, may contribute significantly to individual differences in the phonological abilities necessary for skilled reading.

Rise Time Perception, Phonological Processing, and Reading in Brazilian Portuguese-Speaking Schoolchildren

2021 ◽  
pp. 1-14
Author(s):  
Hellen de Oliveira Valentim Campos ◽  
Luciana Mendonça Alves ◽  
Leandro Alves Pereira ◽  
Rui Rothe-Neves
Keyword(s):  
Phonological Processing ◽  
Rise Time ◽  
Reading Skills ◽  
Brazilian Portuguese ◽  
Structural Equations ◽  
Amplitude Envelope ◽  
School Population ◽  
Possible Cause ◽  
Phonological Abilities ◽  
Operational Memory

<b><i>Background/Aims:</i></b> Studies of people with dyslexia have pointed to the ability to perceive the amplitude envelope rise time (“beat” perception) as a possible cause of phonological processing (PhP) difficulties in this population. However, there are very few studies about the relationships between such skills in the non-dyslexic school population. <b><i>Methods:</i></b> We investigated the influence of the beat perception ability on PhP and reading skills of 93 Brazilian Portuguese-speaking schoolchildren from the 3rd to the 5th year, with data on reading, phonological awareness (PhA), lexical access, phonological operational memory, and perception of amplitude envelope rise time. To verify the possible effects of age, gender, and school grade on the tasks in the study, we directly included these variables in the models. <b><i>Results:</i></b> Modeling structural equations showed that beat perception did not influence PhP or reading skills, but only the tasks of repetition of words and pseudowords. These tasks may be related because of the demand for phonological working memory necessary to perform the beat perception task rather than a possible connection between this and phonological abilities, as reported in the literature. <b><i>Conclusion:</i></b> We suspect beat perception could be of relevance only for subjects with altered reading and/or a deficit in PhP. Further studies will indicate whether the rise time of the amplitude envelope is an essential acoustic clue only for those individuals whose PhA ability is not fully present.

Speech perception and frequency discrimination in good and poor readers

1988 ◽  
Vol 9 (2) ◽  
pp. 163-183 ◽  
Author(s):  
Willy De Weirdt
Keyword(s):  
Speech Perception ◽  
Auditory Perception ◽  
Reading Ability ◽  
Stop Consonant ◽  
Similarity Judgment ◽  
Frequency Discrimination ◽  
Poor Readers ◽  
Discrimination Test ◽  
Normal Children ◽  
Good And Poor Readers

AbstractThe relation between speech perception and reading ability was investigated. Identification and discrimination tests with stimuli on a stop consonant place of articulation continuum (/PA/-/IA/) were presented to various groups of good and poor readers (normal first graders on a reading continuum in Study 1, moderately and severely dyslexic and high- and low-achieving normal children in Study 2). In both studies, reading-related perception differences were especially marked in a comparison of actual and predicted (from identification test) discrimination scores, suggesting that the poor readers have special difficulty with a discrimination-specific task demand. In Study 3, reading-group differences still show up if the stimulus pairs of the discrimination test are simply to be repeated (eliminating the similarity judgment factors), and are also very pronounced on a nonspeech discrimination test (with 130 ms pure tones of slightly different frequencies). In Studies 1 and 3 identification slope and phoneme boundary differences between reader groups were found as well. Though these results do not definitely prove the auditory perception hypothesis, they support it. The conditions that should be satisfied by auditory perception tasks in future reading acquisition research are briefly discussed.

Motor theory modulated by task load: strategies of phonological processing in frontal aphasia revealed by tDCS over the LIFG

2019 ◽  
Author(s):  
Lílian Rodrigues de Almeida ◽  
Paul A. Pope ◽  
Peter Hansen
Keyword(s):  
Speech Perception ◽  
Speech Production ◽  
Phonological Processing ◽  
Inferior Frontal Gyrus ◽  
Dorsal Stream ◽  
Superior Temporal Gyrus ◽  
Motor Theory ◽  
Task Load ◽  
Cathodal Tdcs ◽  
The Individual

In our previous studies we supported the claim that the motor theory is modulated by task load. Motoric participation in phonological processing increases from speech perception to speech production, with the endpoints of the dorsal stream having changing and complementary weightings for processing: the left inferior frontal gyrus (LIFG) being increasingly relevant and the left superior temporal gyrus (LSTG) being decreasingly relevant. Our previous results for neurostimulation of the LIFG support this model. In this study we investigated whether our claim that the motor theory is modulated by task load holds in (frontal) aphasia. Person(s) with aphasia (PWA) after stroke typically have damage on brain areas responsible for phonological processing. They may present variable patterns of recovery and, consequently, variable strategies of phonological processing. Here these strategies were investigated in two PWA with simultaneous fMRI and tDCS of the LIFG during speech perception and speech production tasks. Anodal tDCS excitation and cathodal tDCS inhibition should increase with the relevance of the target for the task. Cathodal tDCS over a target of low relevance could also induce compensation by the remaining nodes. Responses of PWA to tDCS would further depend on their pattern of recovery. Responses would depend on the responsiveness of the perilesional area, and could be weaker than in controls due to an overall hypoactivation of the cortex. Results suggest that the analysis of motor codes for articulation during phonological processing remains in frontal aphasia and that tDCS is a promising diagnostic tool to investigate the individual processing strategies.

The social contagion of utility value: How parents’ beliefs about the usefulness of science predict their children’s motivation and achievement

2021 ◽  
pp. 014303432098520
Author(s):  
Ma. Jenina N. Nalipay ◽  
Yuyang Cai ◽  
Ronnel B. King
Keyword(s):  
Structural Equation ◽  
Science Achievement ◽  
Critical Role ◽  
Social Contagion ◽  
Equation Modeling ◽  
Utility Value ◽  
International Student Assessment ◽  
Value Perceptions ◽  
The Social ◽  
Motivation And Achievement

The purpose of the present study was to examine whether parents’ utility value perceptions predicted their children’s utility value perceptions, demonstrating social contagion effects. We also examined whether utility value would predict achievement. This is a cross-sectional study that utilized data from a subsample of adolescent students from the Program for International Student Assessment (PISA 2015), which focused on science learning and achievement from 18 regions. We performed multi-level structural equation modeling to analyze the data. Results revealed that parents’ utility value perceptions predicted students’ utility value perceptions, which, in turn, predicted science achievement. The findings of this study provide evidence of the social contagion of utility value perceptions from parents to their children and the critical role of utility value in predicting achievement across various regions/countries. Our study highlights the crucial role parents play in adolescents’ motivational and learning outcomes and suggest parental involvement in programs toward enhancing adolescents’ motivation and achievement.

Understanding destination evangelism: a social media viewpoint

2021 ◽  
Vol ahead-of-print (ahead-of-print) ◽  
Author(s):  
Purvendu Sharma
Keyword(s):  
Social Media ◽  
Information Seeking ◽  
Structural Equation ◽  
Structural Equation Models ◽  
Critical Role ◽  
Content Type ◽  
Mediating Role ◽  
Information Seeking Behaviors ◽  
Role Of Information

PurposeThe present research aims to introduce and understand the promising nature of destination evangelism in the context of social media-based tourism communities (SMTCs). Further, factors that influence evangelism and information-seeking behaviors on SMTCs are examined.Design/methodology/approachA conceptual model is developed that features an interplay of destination distinctiveness, destination evangelism, travel commitment and information-seeking engagement. Data were collected from 215 active users of SMTCs and analyzed using structural equation models.FindingsThe research findings indicate that destination distinctiveness and information-seeking positively lead to destination evangelism. Information-seeking is found to mediate the relationship between (1) destination evangelism and travel commitment and (2) destination evangelism and distinctiveness.Research limitations/implicationsThe research offers meaningful insights into exploring constituents of destination evangelism. The research also understands and highlights the critical role of information-seeking engagement about distinct destinations.Practical implicationsThis research highlights key areas to build, improve and inspire destination evangelism on SMTCs.Originality/valueThis study offers a fresh contribution to tourism literature by investigating destination evangelism and its drivers. This is explained by closely uniting vital research streams of evangelism, tourism and engagement. It further highlights the dual mediating role of information seeking, suggesting that these engagements are critical to evangelizing destinations.

scholarly journals Structural Equation Models with Unobservable Variables and Measurement Error: Algebra and Statistics

1981 ◽  
Vol 18 (3) ◽  
pp. 382-388 ◽  
Author(s):  
Claes Fornell ◽  
David F. Larcker
Keyword(s):  
Statistical Analysis ◽  
Measurement Error ◽  
Structural Equation ◽  
Goodness Of Fit ◽  
Structural Equation Models ◽  
Structural Equations ◽  
Testing System

Several issues relating to goodness of fit in structural equations are examined. The convergence and differentiation criteria, as applied by Bagozzi, are shown not to stand up under mathematical or statistical analysis. The authors argue that the choice of interpretative statistic must be based on the research objective. They demonstrate that when this is done the Fornell-Larcker testing system is internally consistent and that it conforms to the rules of correspondence for relating data to abstract variables.

scholarly journals Role of Healthy Work Environments in Sustainability of Goal Achievement; Ethical Leadership, Intention to Sabotage, and Psychological Capital in Jordanian Universities

2018 ◽  
Vol 10 (10) ◽  
pp. 3559 ◽  
Author(s):  
Shadi Mohammad Altahat ◽  
Tarik Atan
Keyword(s):  
Ethical Leadership ◽  
Structural Equation ◽  
Psychological Capital ◽  
Critical Role ◽  
Negative Relationship ◽  
Goal Achievement ◽  
Self Control ◽  
Equation Modeling ◽  
Healthy Environment ◽  
The North

(1) Background: Long-term competitiveness and sustainability of goal achievement are constantly being sought out by organizations. This study examined the link between ethical leadership, intention to sabotage, and psychological capital in Jordanian universities and how they provide a healthy environment conducive to goal achievement sustainability. The literature indicated gaps in knowledge regarding the correlation between these variables in non-western countries, which this study intends to fill. The study drew from social learning theory and self-control theory. (2) Methods: Data was obtained by collecting survey questionnaires from a sample of 376 employees in different universities in the north of Jordan, and was analyzed with Statistical Package for the Social Sciences (SPSS) and Structural Equation Modeling. (3) Results: A significant and direct negative relationship was found between both ethical leadership and psychological capital on employees’ intention to sabotage. Also, a significant and direct positive effect was found between ethical leadership and psychological capital. Furthermore, it was found that psychological capital mediated the relationship between ethical leadership and employees’ intention to sabotage. (4) Conclusions: Leaders have a critical role in increasing employee psychological capital and decreasing intention to sabotage. Many implications indicated by the study’s findings, both theoretical and practical, were discussed.

scholarly journals Critical factors that impact purchase online of new telecom convergent services in the Mexican market

2017 ◽  
Vol 7 (14) ◽  
Author(s):  
Rolando Zubirán Shetler ◽  
Jesús Fabian López Pérez
Keyword(s):  
Electronic Commerce ◽  
Technology Acceptance ◽  
Latent Variables ◽  
Diffusion Of Innovations ◽  
Structural Equation ◽  
Empirical Studies ◽  
The United States ◽  
Structural Equations ◽  
Equation Modeling ◽  
Critical Factors

Key words: Diffusion of innovations, electronic commerce, structural equations, Smart-PLS, technology acceptanceAbstract. The following article analyzes the principal factors that have an impact in the adoption of new telecom convergent services, through electronic commerce, that have been explored and studied primarily in developed markets such as the United States and that have been deemed as critical factors in the development and growth of online electronic transactions. Specifically, factors and latent variables of this study derive from the models of Technology Acceptance (Davis, 1989) and Diffusion of Innovations (Rogers, 2003). A summary of past empirical studies is provided deriving from the aforementioned theoretical models followed by results of an exploratory field study comprising of 253 valid observations randomly selected from within the population of urban internet users in Mexico. The methodology used to determine the causal relationship between variables (Betas) was factor analysis (Principal Components) and structural equation modeling, specifically Smart-PLS. The study determined that perceived utility and trust variables are statistically relevant and significant in determining purchase online of new telecom convergent services and the development of electronic commerce in the Mexican Market.Palabras clave: Aceptación de la tecnología, comercio electrónico, difusión de las innovaciones, ecuaciones estructurales, Smart-PLS.Resumen. Este artículo analiza los principales factores que influyen en la adopción de los nuevos servicios convergentes de telecomunicaciones, a traves del comercio electrónico, que han sido explorados y estudiados principalmente en mercados desarrollados como el de Estados Unidos y que han sido confirmados como factores críticos en el desarrollo y el crecimiento de las transacciones electrónicas en linea. Específicamente, los factores y variables latentes en este estudio se derivan de los modelos de Aceptación de la Tecnología (Davis, 1989) y la Difusión de las Innovaciones (Rogers, 2003). Se presenta un resumen de los antecedentes de estudios empíricos derivados de los mencionados modelos teóricos, seguido de los resultados de un estudio exploratorio de campo que comprende 253 observaciones válidas seleccionadas en forma aleatoria dentro de la población de usuarios urbanos de Internet en México. La metodología utilizada para determinar las relaciones causales entre las variables (Betas) fue análisis factorial (Componentes Principales) y el modelo de ecuaciones estructurales, específicamente Smart-PLS. El estudio determina que las variables percepción de utilidad y confianza son estadísticamente relevantes y significativas en la determinación de compra en línea de nuevos servicios convergentes de telecomunicaciones y en el desarrollo del comercio electrónico en el Mercado Mexicano.

scholarly journals Common Misconceptions about the Phonological Deficit Theory of Dyslexia

2021 ◽  
Vol 11 (11) ◽  
pp. 1510
Author(s):  
David L. Share
Keyword(s):  
Struggling Readers ◽  
Phonemic Awareness ◽  
Phonological Processing ◽  
Reading Ability ◽  
Discussion Paper ◽  
Phonological Deficit ◽  
Core Deficit ◽  
The Common ◽  
Deficit Theory ◽  
Common Misconceptions

In this discussion paper, I review a number of common misconceptions about the phonological deficit theory (PDH) of dyslexia. These include the common but mistaken idea that the PDH is simply about phonemic awareness (PA), and, consequently, is a circular “pseudo”-explanation or epiphenomenon of reading difficulties. I argue that PA is only the “tip of the phonological iceberg” and that “deeper” spoken-language phonological impairments among dyslexics appear well before the onset of reading and even at birth. Furthermore, not even reading-specific expressions of phonological deficits—PA or pseudoword naming, can be considered circular if we clearly distinguish between reading proper—real meaning-bearing words, or real text, and the mechanisms (subskills) of reading development (such as phonological recoding). I also explain why an understanding of what constitutes an efficient writing system explains why phonology is necessarily a major source of variability in reading ability and hence a core deficit (or at least one core deficit) among struggling readers whether dyslexic or non-dyslexic. I also address the misguided notion that the PDH has now fallen out of favor because most dyslexia researchers have (largely) ceased studying phonological processing. I emphasize that acceptance of the PDH does not imply repudiation of other non-phonological hypotheses because the PDH does not claim to account for all the variance in reading ability/disability. Finally, I ask where neurobiology enters the picture and suggest that researchers need to exercise more caution in drawing their conclusions.

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