scholarly journals Language-developmental trajectory in autism

2021 ◽  
Author(s):  
Jeannette Schaeffer ◽  
Ileana Grama
Keyword(s):  
Developmental Trajectory

On the Relationship Between General Auditory Sensitivity and Speech Perception: An Examination of Pitch and Lexical Tone Perception in 4- to 6-Year-Old Children

2020 ◽  
Vol 63 (2) ◽  
pp. 487-498
Author(s):  
Puisan Wong ◽  
Man Wai Cheng
Keyword(s):  
Speech Perception ◽  
Theoretical Models ◽  
Developmental Trajectory ◽  
Auditory Sensitivity ◽  
Pitch Discrimination ◽  
Lexical Tone ◽  
Perceptual Training ◽  
Lexical Tones ◽  
Tone Perception ◽  
Tone Discrimination

Purpose Theoretical models and substantial research have proposed that general auditory sensitivity is a developmental foundation for speech perception and language acquisition. Nonetheless, controversies exist about the effectiveness of general auditory training in improving speech and language skills. This research investigated the relationships among general auditory sensitivity, phonemic speech perception, and word-level speech perception via the examination of pitch and lexical tone perception in children. Method Forty-eight typically developing 4- to 6-year-old Cantonese-speaking children were tested on the discrimination of the pitch patterns of lexical tones in synthetic stimuli, discrimination of naturally produced lexical tones, and identification of lexical tone in familiar words. Results The findings revealed that accurate lexical tone discrimination and identification did not necessarily entail the accurate discrimination of nonlinguistic stimuli that followed the pitch levels and pitch shapes of lexical tones. Although pitch discrimination and tone discrimination abilities were strongly correlated, accuracy in pitch discrimination was lower than that in tone discrimination, and nonspeech pitch discrimination ability did not precede linguistic tone discrimination in the developmental trajectory. Conclusions Contradicting the theoretical models, the findings of this study suggest that general auditory sensitivity and speech perception may not be causally or hierarchically related. The finding that accuracy in pitch discrimination is lower than that in tone discrimination suggests that comparable nonlinguistic auditory perceptual ability may not be necessary for accurate speech perception and language learning. The results cast doubt on the use of nonlinguistic auditory perceptual training to improve children's speech, language, and literacy abilities.

Developmental trajectory of pseudoneglect in adults using the greyscales task.

2016 ◽  
Vol 52 (11) ◽  
pp. 1937-1943 ◽  
Author(s):  
Trista E. Friedrich ◽  
Paulette V. Hunter ◽  
Lorin J. Elias
Keyword(s):  
Developmental Trajectory

Developmental Trajectory of Visual Object Recognition Revealed by fMRI

2007 ◽  
Author(s):  
K. Suzanne Scherf ◽  
Marlene Behrmann ◽  
Kate Humphreys ◽  
Beatriz Luna
Keyword(s):  
Object Recognition ◽  
Developmental Trajectory ◽  
Visual Object ◽  
Visual Object Recognition

How to grow a self: development of the self in a Bayesian brain

2019 ◽  
Author(s):  
Mateusz Wozniak
Keyword(s):  
Conceptual Development ◽  
Human Life ◽  
Predictive Coding ◽  
Body Representation ◽  
Developmental Trajectory ◽  
The Self ◽  
Learning Mechanisms ◽  
Bayesian Brain ◽  
Third Person ◽  
Complex Forms

The last two decades have brought several attempts to explain the self as a part of the Bayesian brain, typically within the framework of predictive coding. However, none of these attempts have looked comprehensively at the developmental aspect of self-representation. The goal of this paper is to argue that looking at the developmental trajectory is crucial for understanding the structure of an adult self-representation. The paper argues that the emergence of the self should be understood as an instance of conceptual development, which in the context of a Bayesian brain can be understood as a process of acquisition of new internal models of hidden causes of sensory input. The paper proposes how such models might emerge and develop over the course of human life by looking at different stages of development of bodily and extra-bodily self-representations. It argues that the self arises gradually in a series of discrete steps: from first-person multisensory representations of one’s body to third-person multisensory body representation, and from basic forms of the extended and social selves to progressively more complex forms of abstract self-representation. It discusses how each of them might emerge based on domain-general learning mechanisms, while also taking into account the potential role of innate representations. Finally it suggests how the conceptual structure of self-representation might inform the debate about the structure of self-consciousness.

From a molar to a molecular approach to the developmental trajectory of syntax comprehension by persons with intellectual disability

2020 ◽  
Author(s):  
Bruno Facon
Keyword(s):  
Developmental Trajectories ◽  
Developmental Trajectory ◽  
Typically Developing ◽  
Cognitive Level ◽  
Cross Sectional ◽  
Test Items ◽  
Complex Sentences ◽  
Regression Curves ◽  
Cognitive Measure ◽  
Syntactic Skills

The aim was to investigate whether a progressive dissociation between the cognitive level and syntax comprehension occurs during the development of persons with intellectual disabilities (ID). Two cross-sectional developmental trajectory analyses were successively conducted. Study 1 comprised 615 typically developing participants and 615 participants with ID. Their total scores on a syntax comprehension test were regressed on a nonverbal cognitive measure and the slopes of the two groups’ regression lines were compared. In Study 2, logistic regression curves of the two groups for each of the 92 test items were compared. Results showed only negligible between-groups differences of developmental trajectories, whatever the level of analysis. The idea of a progressive dissociation between cognitive level and receptive syntactic skills of people with ID is not confirmed. However, a syntax test evaluating more complex sentences than those used in this study might show such a dissociation.

Social-Emotional Competence in Down Syndrome

2020 ◽  
Author(s):  
Amanda Dimachkie ◽  
Connie L. Kasari
Keyword(s):  
Down Syndrome ◽  
Emotional Competence ◽  
Self Regulation ◽  
Social Problem Solving ◽  
Developmental Trajectory ◽  
Social Emotional ◽  
Social Emotional Competence ◽  
Prosocial Orientation ◽  
Expression Of Emotions ◽  
Prism Model

This chapter aims to synthesize historical and contemporary literature to provide an overarching understanding of social-emotional competence in individuals with Down syndrome, where social-emotional competence refers to the skills necessary to allow for successful social relationships, as well as the ability to regulate the experience and expression of emotions. Using the framework of Rose-Krasnor’s prism model, this chapter addresses each of the four components that underlie the development of social-emotional competence: self-regulation, social awareness, prosocial orientation, and social problem-solving. The development of each of these components is described for individuals with Down syndrome, and a description of the typical developmental trajectory is given for reference. The short-term and long-term implications of each component are also discussed, as they relate to the individual’s overall social-emotional competence. This overview aims to highlight what is known regarding social-emotional competence in individuals with Down syndrome, as well as to identify areas in which knowledge is lacking.

“Of Sound Mind and Body”

2019 ◽  
pp. 64-86
Author(s):  
Frank E. Vandervort ◽  
Vincent J. Palusci
Keyword(s):  
United States ◽  
Substance Abuse ◽  
Social Problem ◽  
Drug Testing ◽  
The United States ◽  
Developmental Trajectory ◽  
Prenatally Exposed ◽  
Short Term ◽  
Mind And Body ◽  
Sound Mind

Substance abuse is a major medical and social problem. Estimates suggest that each year some 15 percent of the 4 million babies born in the United States are exposed to drugs or alcohol. Research demonstrates that exposure to these substances is harmful to the children in both the short term and across their developmental trajectory. This chapter summarizes the harms that might result from such prenatal exposure and considers the ways that both federal and state law respond to this. The chapter argues for universal drug testing of newborns in an effort to ascertain whether they have been prenatally exposed to such substances so that treatment and other services can be provided.

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