scholarly journals Sobre o impacto da constituência silábica na repetição de pseudopalavras: dados preliminares do desenvolvimento típico para a validação do LITMUS-QU-NWR-EP

2021 ◽  
pp. 87-104
Author(s):  
Inês Catarino ◽  
Letícia Almeida ◽  
Christophe dos Santos ◽  
Maria João Freitas
Keyword(s):  
Nonword Repetition ◽  
Clinical Implications ◽  
Final Position ◽  
Typically Developing ◽  
Typically Developing Children ◽  
French Version ◽  
European Portuguese ◽  
Relevant Task ◽  
Child Performance ◽  
The Impact

Nonword repetition is a relevant task in clinical phonological assessment. However, few authors have considered the impact of syllable constituency on child performance in such task. In this study, we analyse the contribution of syllable constituency in nonword repetition through the validation of a new test (LITMUS-QU-NWR-EP) adapted to European Portuguese (EP). Two syllable structures were considered: lateral coda (both in word-medial and word-final position) and branching onsets (obstruent + lateral clusters). Results from typically developing children, aged 5 to 8 years, showed generalized difficulties in both structures, although codas were less problematic than branching onsets. Portuguese child performance contrasts with the data obtained for the French version of the instrument (LITMUS-QU-NWR-FR), given the overall lower performance found for EP, and the preference for codas over branching onsets, unlike attested for French children. A comparative analysis shows that nonword repetition difficulties in what concerns syllabic constituency may be language dependent. Clinical implications for EP are discussed.

The Impact of Sleep on Emotion in Typically Developing Children

2015 ◽  
pp. 399-419
Author(s):  
Reut Gruber ◽  
Soukaina Paquin ◽  
Jamie Cassoff ◽  
Merrill S. Wise
Keyword(s):  
Typically Developing ◽  
Typically Developing Children ◽  
The Impact

How do bilingual dyslexic and typically developing children perform in nonword repetition? Evidence from a study on Italian L2 children

2019 ◽  
Vol 23 (4) ◽  
pp. 884-896
Author(s):  
Maria Vender ◽  
Denis Delfitto ◽  
Chiara Melloni
Keyword(s):  
Second Language ◽  
Nonword Repetition ◽  
Bilingual Children ◽  
Typically Developing ◽  
Typically Developing Children ◽  
School Aged Children ◽  
Repetition Task

AbstractNonword repetition is typically impaired in dyslexia. Conversely, native-like performance is early achieved by bilingual children whose second language has a simple phonotactic system, like Italian. Our study aimed at comparing the performance of monolingual and bilingual children with and without dyslexia in a nonword repetition task modeled after Italian. We assessed nonword repetition in 111 school-aged children: 24 Italian L2 bilingual dyslexics, 24 Italian monolingual dyslexics, 30 Italian L2 bilingual controls and 33 Italian monolingual controls. We administered an original task composed of 40 nonwords ranging from two to five syllables; the complexity of the syllables was also manipulated. Results showed that both groups of dyslexics underperformed controls at each syllable length. No differences were found between monolingual and bilingual controls. Conversely, bilingual dyslexics underperformed monolingual dyslexics only with four-syllable nonwords. The possible use of nonword repetition tasks to assist in the identification of dyslexia in bilingual children is also discussed.

What do monolingual and bilingual children with and without SLI produce when phonology is too complex?

2018 ◽  
Vol 39 (2) ◽  
pp. 158-176 ◽  
Author(s):  
Laetitia de Almeida ◽  
Sandrine Ferré ◽  
Marie-Anne Barthez ◽  
Christophe dos Santos
Keyword(s):  
Language Impairment ◽  
Specific Language Impairment ◽  
Nonword Repetition ◽  
Bilingual Children ◽  
Typically Developing ◽  
Typically Developing Children ◽  
Specific Language ◽  
Repetition Task

In this study, the authors compare the production of internal codas and branching onsets in four groups of children learning French: monolingual typically-developing children ( n = 12), bilingual typically-developing children ( n = 61), monolingual children with Specific Language Impairment ( n = 17) and bilingual children with Specific Language Impairment ( n = 20). Their elicited productions were collected using a nonword repetition task (LITMUS-NWR-French), containing 71 nonwords with different syllable types. Except for typically-developing monolingual children, all children performed significantly better on branching onsets than on internal codas. Moreover, the repair strategies used in erroneous productions also indicate that children had more difficulties with internal codas: all the cases of metathesis affecting a target internal coda resulted in the production of a branching onset whereas the contrary was not observed. The differences in the rates of target-like production and the patterns of metathesis of these two structures suggest that internal codas are more difficult than branching onsets for children learning French.

scholarly journals Nonword Repetition and Vocabulary Knowledge as Predictors of Children's Phonological and Semantic Word Learning

2017 ◽  
Vol 60 (3) ◽  
pp. 682-693 ◽  
Author(s):  
Suzanne M. Adlof ◽  
Hannah Patten
Keyword(s):  
Word Learning ◽  
Semantic Information ◽  
Vocabulary Knowledge ◽  
Nonword Repetition ◽  
Chronological Age ◽  
Typically Developing ◽  
Expressive Vocabulary ◽  
Typically Developing Children ◽  
New Words ◽  
Reading Impairments

Purpose This study examined the unique and shared variance that nonword repetition and vocabulary knowledge contribute to children's ability to learn new words. Multiple measures of word learning were used to assess recall and recognition of phonological and semantic information. Method Fifty children, with a mean age of 8 years (range 5–12 years), completed experimental assessments of word learning and norm-referenced assessments of receptive and expressive vocabulary knowledge and nonword repetition skills. Hierarchical multiple regression analyses examined the variance in word learning that was explained by vocabulary knowledge and nonword repetition after controlling for chronological age. Results Together with chronological age, nonword repetition and vocabulary knowledge explained up to 44% of the variance in children's word learning. Nonword repetition was the stronger predictor of phonological recall, phonological recognition, and semantic recognition, whereas vocabulary knowledge was the stronger predictor of verbal semantic recall. Conclusions These findings extend the results of past studies indicating that both nonword repetition skill and existing vocabulary knowledge are important for new word learning, but the relative influence of each predictor depends on the way word learning is measured. Suggestions for further research involving typically developing children and children with language or reading impairments are discussed.

scholarly journals Accounting for motion in fMRI: What part of the spectrum are we characterizing in autism spectrum disorder?

2022 ◽  
Author(s):  
Mary Beth Nebel ◽  
Daniel Lidstone ◽  
Liwei Wang ◽  
David Benkeser ◽  
Stewart H Mostofsky ◽  
...  
Keyword(s):  
Autism Spectrum Disorder ◽  
Functional Connectivity ◽  
Autism Spectrum ◽  
Machine Learning Algorithms ◽  
Spectrum Disorder ◽  
Intellectual Ability ◽  
Typically Developing ◽  
Autistic Children ◽  
Typically Developing Children ◽  
The Impact

The exclusion of high-motion participants can reduce the impact of motion in functional Magnetic Resonance Imaging (fMRI) data. However, the exclusion of high-motion participants may change the distribution of clinically relevant variables in the study sample, and the resulting sample may not be representative of the population. Our goals are two-fold: 1) to document the biases introduced by common motion exclusion practices in functional connectivity research and 2) to introduce a framework to address these biases by treating excluded scans as a missing data problem. We use a study of autism spectrum disorder to illustrate the problem and the potential solution. We aggregated data from 545 children (8-13 years old) who participated in resting-state fMRI studies at Kennedy Krieger Institute (173 autistic and 372 typically developing) between 2007 and 2020. We found that autistic children were more likely to be excluded than typically developing children, with 29.1% and 16.1% of autistic and typically developing children excluded, respectively, using a lenient criterion and 80.8% and 59.8% with a stricter criterion. The resulting sample of autistic children with usable data tended to be older, have milder social deficits, better motor control, and higher intellectual ability than the original sample. These measures were also related to functional connectivity strength among children with usable data. This suggests that the generalizability of previous studies reporting naïve analyses (i.e., based only on participants with usable data) may be limited by the selection of older children with less severe clinical profiles because these children are better able to remain still during an rs-fMRI scan. We adapt doubly robust targeted minimum loss based estimation with an ensemble of machine learning algorithms to address these data losses and the resulting biases. The proposed approach selects more edges that differ in functional connectivity between autistic and typically developing children than the naïve approach, supporting this as a promising solution to improve the study of heterogeneous populations in which motion is common.

scholarly journals Speech Rate Varies With Sentence Length in Typically Developing Children

2021 ◽  
pp. 1-7
Author(s):  
Meghan Darling-White ◽  
Symone Whitney Banks
Keyword(s):  
Speech Rate ◽  
Sentence Length ◽  
Pause Time ◽  
Typically Developing ◽  
Articulation Rate ◽  
Typically Developing Children ◽  
Parts Of Speech ◽  
Highly Sensitive ◽  
Main Effects ◽  
The Impact

Purpose The primary purpose of this study was to examine the effect of sentence length on speech rate and its characteristics, articulation rate and pauses, in typically developing children. Method Sixty-two typically developing children between the ages of 10 and 14 years repeated sentences varying in length from two to seven words. Dependent variables included speech rate (syllables per second), articulation rate (syllables per second), and proportion of time spent pausing. Results Speech rate and articulation rate significantly increased with increases in sentence length, but proportion of time spent pausing did not increase with sentence length. There were no significant main effects of age. Conclusions This is the first study to suggest that sentence length differentially impacts the component parts of speech rate, articulation rate and pause time. Increases in sentence length led to increases in speech rate, primarily due to increases in articulation rate and not increases in pause time. Articulation rate appears to be highly sensitive to the impact of sentence length, while a higher cognitive–linguistic load may be required to see sentence length effects on pause time.

scholarly journals Trajectories of imitation skills in preschoolers with Autism Spectrum Disorders

2021 ◽  
Author(s):  
Irene Pittet ◽  
Nada Kojovic ◽  
Martina Franchini ◽  
Marie Schaer
Keyword(s):  
Autism Spectrum Disorders ◽  
Social Cognitive ◽  
Developmental Trajectories ◽  
Children With Autism ◽  
Autism Spectrum ◽  
Typically Developing ◽  
Typically Developing Children ◽  
Children With Asd ◽  
Spectrum Disorders ◽  
The Impact

Imitation skills play a crucial role in social cognitive development from early childhood. Many studies have shown a deficit in imitation skills in children with Autism Spectrum Disorders (ASD). Little is known about the development of imitation behaviors in children with ASD. This study aims to measure the trajectories of early imitation skills in preschoolers with ASD and how these skills impact other areas of early development. For this purpose, we assessed imitation, language and cognition skills in 177 children with ASD and 43 typically developing children (TD) aged 2 to 5 years old, 126 of which were followed longitudinally, yielding a total of 396 time-points. Our results confirmed the presence of an early imitation deficit in toddlers with ASD compared to TD children. The study of the trajectories showed that these difficulties were marked at the age of two years, and gradually decreased until the age of 5 years old. Imitation skills were strongly linked with cognitive, language skills and level of symptoms in our ASD group at baseline. Moreover, the imitation skills at baseline were predictive of the language gains a year later in our ASD group. Using a data-driven clustering method, we delineated different developmental trajectories of imitation skills within the ASD group. The clinical implications of the findings are discussed, particularly the impact of an early imitation deficit on other areas of competence of the young child.

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