Phonological Awareness Deficits in Children With Dyslexia: The Impact of Working Memory as a Function of Modality of Test Administration

Purpose Many children with developmental language disorder (DLD) have weaknesses in executive functioning (EF), specifically in tasks testing interference control and working memory. It is unknown how EF develops in children with DLD, if EF abilities are related to DLD severity and persistence, and if EF weaknesses expand to selective attention. This study aimed to address these gaps. Method Data from 78 children with DLD and 39 typically developing (TD) children were collected at three times with 1-year intervals. At Time 1, the children were 5 or 6 years old. Flanker, Dot Matrix, and Sky Search tasks tested interference control, visuospatial working memory, and selective attention, respectively. DLD severity was based on children's language ability. DLD persistence was based on stability of the DLD diagnosis. Results Performance on all tasks improved in both groups. TD children outperformed children with DLD on interference control. No differences were found for visuospatial working memory and selective attention. An interference control gap between the DLD and TD groups emerged between Time 1 and Time 2. Severity and persistence of DLD were related to interference control and working memory; the impact on working memory was stronger. Selective attention was unrelated to DLD severity and persistence. Conclusions Age and DLD severity and persistence determine whether or not children with DLD show EF weaknesses. Interference control is most clearly impaired in children with DLD who are 6 years and older. Visuospatial working memory is impaired in children with severe and persistent DLD. Selective attention is spared.

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The Impact of the Working Memory Capacity on Counting Strategies

PsycEXTRA Dataset ◽

10.1037/e512682013-110 ◽

2007 ◽

Author(s):

Valerie Camos

Keyword(s):

Working Memory ◽

Working Memory Capacity ◽

Memory Capacity ◽

The Impact

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The impact of affective contexts on working memory capacity in healthy populations and in individuals with PTSD.

Emotion ◽

10.1037/emo0000072 ◽

2016 ◽

Vol 16 (1) ◽

pp. 16-23 ◽

Cited By ~ 16

Author(s):

Susanne Schweizer ◽

Tim Dalgleish

Keyword(s):

Working Memory ◽

Working Memory Capacity ◽

Memory Capacity ◽

The Impact

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Dissociating the Impact of Auditory Access and Language Access in Deaf Children’s Cognitive Development

The Oxford Handbook of Deaf Studies in Learning and Cognition ◽

10.1093/oxfordhb/9780190054045.013.19 ◽

2020 ◽

pp. 98-122

Author(s):

Matthew L. Hall

Keyword(s):

Working Memory ◽

Executive Function ◽

Cognitive Development ◽

Implicit Learning ◽

Educational Practice ◽

Verbal Working Memory ◽

Psychological Theory ◽

Future Research ◽

Language Access ◽

The Impact

Deaf and hard of hearing (DHH) children have been claimed to lag behind their hearing peers in various domains of cognitive development, especially in implicit learning, executive function, and working memory. Two major accounts of these deficits have been proposed: one based on a lack of auditory access, and one based on a lack of language access. This chapter reviews these theories in relation to the available evidence and concludes that there is little evidence of direct effects of diminished auditory access on cognitive development that could not also be explained by diminished language access. Specifically, reports of deficits in implicit learning are not broadly replicable. Some differences in executive function do stem from deafness itself but are not necessarily deficits. Where clinically relevant deficits in executive function are observed, they are inconsistent with the predictions of accounts based on auditory access, but consistent with accounts based on language access. Deaf–hearing differences on verbal working memory tasks may indicate problems with perception and/or language, rather than with working memory. Deaf–hearing differences on nonverbal tasks are more consistent with accounts based on language access, but much more study is needed in this area. The chapter concludes by considering the implications of these findings for psychological theory and for clinical/educational practice and by identifying high-priority targets for future research.

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Interdisciplinary and Intercultural Development of an Early Literacy App in Dhuwaya

Languages ◽

10.3390/languages6020106 ◽

2021 ◽

Vol 6 (2) ◽

pp. 106

Author(s):

Gillian Wigglesworth ◽

Melanie Wilkinson ◽

Yalmay Yunupingu ◽

Robyn Beecham ◽

Jake Stockley

Keyword(s):

Phonological Awareness ◽

Early Literacy ◽

First Language ◽

Literacy Skills ◽

Intercultural Development ◽

Educational Challenges ◽

English Speaking ◽

Surrounding Areas ◽

Bilingual School ◽

The Impact

Phonological awareness is a skill which is crucial in learning to read. In this paper, we report on the challenges encountered while developing a digital application (app) for teaching phonological awareness and early literacy skills in Dhuwaya. Dhuwaya is a Yolŋu language variety spoken in Yirrkala and surrounding areas in East Arnhem Land. Dhuwaya is the first language of the children who attend a bilingual school in which Dhuwaya and English are the languages of instruction. Dhuwaya and English have different phonemic inventories and different alphabets. The Dhuwaya alphabet is based on Roman alphabet symbols and has 31 graphemes (compared to 26 in English). The app was designed to teach children how to segment and blend syllables and phonemes and to identify common words as well as suffixes used in the language. However, the development was not straightforward, and the impact of the linguistic, cultural and educational challenges could not have been predicted. Amongst these was the inherent variation in the language, including glottal stops, the pronunciation of stops, the focus on syllables as a decoding strategy for literacy development and challenges of finding one-syllable words such as those initially used with English-speaking children. Another challenge was identifying culturally appropriate images which the children could relate to and which were not copyrighted. In this paper, we discuss these plus a range of other issues that emerged, identifying how these problems were addressed and resolved by the interdisciplinary and intercultural team.

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043 Sleep Restriction Affects Memory in Healthy Adults: Preliminary Findings

SLEEP ◽

10.1093/sleep/zsab072.042 ◽

2021 ◽

Vol 44 (Supplement_2) ◽

pp. A18-A19

Author(s):

Molly Zimmerman ◽

Christiane Hale ◽

Adam Brickman ◽

Lok-Kin Yeung ◽

Justin Cochran ◽

...

Keyword(s):

Working Memory ◽

Negative Impact ◽

Positive Impact ◽

Healthy Adults ◽

Task Demands ◽

Sleep Restriction ◽

Neuropsychological Function ◽

Wake Time ◽

Sleep Condition ◽

The Impact

Abstract Introduction Sleep loss has a range of detrimental effects on cognitive ability. However, few studies have examined the impact of sleep restriction on neuropsychological function using an experimental design. The goal of this study was to examine the extent to which maintained insufficient sleep affects cognition in healthy adults compared to habitual adequate sleep. Methods This study used a randomized, crossover, outpatient sleep restriction design. Adults who regularly slept at least 7 h/night, verified by 2 weeks of screening with actigraphy, completed 2 phases of 6 weeks each: habitual sleep (>7 h of sleep/night) or sleep restriction (habitual sleep minus 1.5 h) separated by a 6-week washout period. During the sleep restriction phase, participants were asked to delay their bedtime by 1.5 hours/night while maintaining their habitual wake time. Neuropsychological function was evaluated with the NIH Toolbox Cognition Battery at baseline (week 0) and endpoint (week 6) of each intervention phase. The NIH Toolbox evaluates a range of cognitive abilities, including attention, executive functioning, and working memory. General linear models with post hoc paired t-tests were used to assess demographically-adjusted test scores prior to and following each sleep condition. Results At the time of analyses, 16 participants were enrolled (age 34.5□14.5 years, 9 women), 10 of whom had completed study procedures. An interaction between sleep condition and testing session revealed that individuals performed worse on List Sorting, a working memory test, after sleep restriction but improved slightly after habitual sleep (p<0.001). While not statistically reliable, the pattern of test results was similar on the other tests of processing speed, executive function, and attention. Conclusion In these preliminary results from this randomized experimental study, we demonstrated that sleep restriction has a negative impact while stable habitual adequate sleep has a positive impact on working memory, or the ability to temporarily hold information in mind while executing task demands. This finding contributes to our understanding of the complex interplay between different aspects of sleep quality (i.e., both sleep restriction as well as the maintenance of stable sleep patterns) on cognition and underscores the importance of routine sleep screening as part of medical evaluations. Support (if any):

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Effects of Sport-Based Interventions on Children’s Executive Function: A Systematic Review and Meta-Analysis

Brain Sciences ◽

10.3390/brainsci11060755 ◽

2021 ◽

Vol 11 (6) ◽

pp. 755

Author(s):

Falonn Contreras-Osorio ◽

Christian Campos-Jara ◽

Cristian Martínez-Salazar ◽

Luis Chirosa-Ríos ◽

Darío Martínez-García

Keyword(s):

Systematic Review ◽

Working Memory ◽

Executive Function ◽

Inhibitory Control ◽

Cognitive Flexibility ◽

Meta Analysis ◽

Scientific Evidence ◽

Healthy Children ◽

Meta Analyses ◽

The Impact

One of the most studied aspects of children’s cognitive development is that of the development of the executive function, and research has shown that physical activity has been demonstrated as a key factor in its enhancement. This meta-analysis aims to assess the impact of specific sports interventions on the executive function of children and teenagers. A systematic review was carried out on 1 November 2020 to search for published scientific evidence that analysed different sports programs that possibly affected executive function in students. Longitudinal studies, which assessed the effects of sports interventions on subjects between 6 and 18 years old, were identified through a systematic search of the four principal electronic databases: Web of Science, PubMed, Scopus, and EBSCO. A total of eight studies, with 424 subjects overall, met the inclusion criteria and were classified based on one or more of the following categories: working memory, inhibitory control, and cognitive flexibility. The random-effects model for meta-analyses was performed with RevMan version 5.3 to facilitate the analysis of the studies. Large effect sizes were found in all categories: working memory (ES −1.25; 95% CI −1.70; −0.79; p < 0.0001); inhibitory control (ES −1.30; 95% CI −1.98; −0.63; p < 0.00001); and cognitive flexibility (ES −1.52; 95% CI −2.20; −0.83; p < 0.00001). Our analysis concluded that healthy children and teenagers should be encouraged to practice sports in order to improve their executive function at every stage of their development.

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