New measures to chart toddlers² speech perception and language development: a test of the lexical restructuring hypothesis

2006 ◽  
Author(s):  
Iris-Corinna Schwarz ◽  
Denis Burnham
Keyword(s):  
Speech Perception ◽  
Language Development ◽  
Lexical Restructuring

scholarly journals Mismatch Negativity in Children with Cochlear Implant

2019 ◽  
Vol 23 (03) ◽  
pp. e292-e298
Author(s):  
Natalia Martinez Fernandes ◽  
Daniela Gil ◽  
Marisa Frasson de Azevedo
Keyword(s):  
Speech Perception ◽  
Language Development ◽  
Cochlear Implant ◽  
Cochlear Implants ◽  
Family Involvement ◽  
Mismatch Negativity ◽  
Control Group ◽  
Study Group ◽  
Cross Sectional ◽  
Hearing Children

Introduction The mismatch negativity (MMN) is a negative long-latency auditory potential elicited by any discriminable change in a repetitive aspect of auditory stimulation. This evoked potential can provide cortical information about the sound processing, including in children who use cochlear implants. Objective To identify MMN characteristics regarding latency, amplitude, and wave area in cochlear implanted children and to identify associations among language development, speech perception and family involvement. Methods This is a descriptive, observational, cross-sectional study, which compared two groups: study group—children with cochlear implant, and control group—hearing children. The children were submitted to MMN evaluation with non-verbal tone burst stimulus, differing in frequency in sound field at 70 dBHL, with SmartEP equipment (Intelligent Hearing Systems, Miami, FL, USA). Speech perception and language development questionnaires were also applied, and the family participation in the rehabilitation process was classified. Results The occurrence of MMN was 73.3% for the control group and 53.3% for the study group. Values of latency, amplitude and area of MMN of children using cochlear implants were similar to those of hearing children, and did not differ between groups. The occurrence of MMN was not correlated to the variables of hearing, language and family categories. Conclusion Children with cochlear implants showed similar MMN responses to those of the children in the control group, with mean latency, amplitude and area of 208.9 ms (±12.8), -2.37 μV (±0.38) and 86.5 μVms (±23.4), respectively. There was no correlation between the presence of MMN and children's performance in the auditory and language development tests or family involvement during rehabilitation.

Early Speech Perception and Later Language Development: Implications for the "Critical Period"

2005 ◽  
Vol 1 (3-4) ◽  
pp. 237-264 ◽  
Author(s):  
Patricia K. Kuhl ◽  
Barbara T. Conboy ◽  
Denise Padden ◽  
Tobey Nelson ◽  
Jessica Pruitt
Keyword(s):  
Speech Perception ◽  
Language Development ◽  
Critical Period ◽  
Early Speech

Early Speech Perception and Later Language Development: Implications for the "Critical Period"

2005 ◽  
Vol 1 (3) ◽  
pp. 237-264 ◽  
Author(s):  
Patricia Kuhl ◽  
Barbara Conboy ◽  
Denise Padden ◽  
Tobey Nelson ◽  
Jessica Pruitt
Keyword(s):  
Speech Perception ◽  
Language Development ◽  
Critical Period ◽  
Early Speech

Perceptual constancy for phonemic categories: a developmental study with normal and language impaired children

1980 ◽  
Vol 1 (1) ◽  
pp. 49-64 ◽  
Author(s):  
Paula Tallal ◽  
Rachel E. Stark ◽  
Clayton Kallman ◽  
David Mellits
Keyword(s):  
Speech Perception ◽  
Language Development ◽  
Acoustic Signal ◽  
Conditioned Response ◽  
Language Disorders ◽  
Developmental Study ◽  
Perceptual Constancy ◽  
Normal Children ◽  
Language Impaired ◽  
Impaired Children

ABSTRACTSix synthesized consonant-vowel syllables, three containing the phoneme /b/ in different vowel contexts and three the phoneme /d/, were presented randomly to developmental dysphasics and normal children. The ability to recognize that these six acoustically different stimuli shared two common phonemic categories (perceptual constancy) was investigated using nonverbal operantly conditioned response techniques. Results showed that although several children in both groups had difficulty with the task, the dysphasic group's performance was significantly poorer than the controls. Whereas the normal children improved significantly with age, the dysphasics did not. The results of this study suggest that speech perception, rather than being fully developed in infancy, changes throughout language development. By using procedures which have proven suitable for testing infants, with young children at various stages of language development, more might be learned about how the acoustic signal is encoded into speech and language and how this encoding changes throughout development or is disturbed in language disorders.

Neurodevelopmental Preparedness for Language in the Neonatal Brain

2021 ◽  
Vol 3 (1) ◽  
pp. 41-58
Author(s):  
Caroline Nallet ◽  
Judit Gervain
Keyword(s):  
Speech Perception ◽  
Language Development ◽  
Neural Oscillations ◽  
Neonatal Brain ◽  
Full Band ◽  
Low Pass ◽  
Chronological Sequence ◽  
Band Signal ◽  
New Framework

Neonates show broad-based, universal speech perception abilities, allowing them to acquire any language. Moreover, an increasing body of research shows that prenatal experience with speech, which is a low-pass signal mainly preserving prosody, already shapes those abilities. In this review, we first provide a summary of the empirical evidence available today on newborns’ universal and experience-modulated speech perception abilities. We then interpret these findings in a new framework, focusing on the role of the prenatal prosodic experience in speech perception development. We argue that the chronological sequence of infants’ experience with speech, starting before birth with a low-pass filtered signal and continuing with the full-band signal after birth, sets up the prosodic hierarchy and a cascade of embedded neural oscillations as its brain correlate, laying the foundations for language acquisition. Prosody, constituting infants’ very first experience with language, may thus play a fundamental role in speech perception and language development.

Performance of children with mental retardation after cochlear implantation: Speech perception, speech intelligibility, and language development

2010 ◽  
Vol 130 (8) ◽  
pp. 924-934 ◽  
Author(s):  
Young-Mee Lee ◽  
Lee-Suk Kim ◽  
Sung-Wook Jeong ◽  
Jeong-Seo Kim ◽  
Seung-Hyun Chung
Keyword(s):  
Mental Retardation ◽  
Speech Perception ◽  
Language Development ◽  
Cochlear Implantation ◽  
Speech Intelligibility
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