Autistic-like traits in children are associated with enhanced performance in a qualitative visual working memory task / C. J. HAMILTON in Autism Research, 11-11 (November 2018)  

Public ISBD [article]  inAutism Research > 11-11 (November 2018) . - p.1494-1499 Titre : Autistic-like traits in children are associated with enhanced performance in a qualitative visual working memory task Type de document : Texte imprimé et/ou numérique Auteurs : C. J. HAMILTON, Auteur ; I. C. MAMMARELLA, Auteur ; D. GIOFRE, Auteur Article en page(s) : p.1494-1499 Langues : Anglais (eng) Mots-clés : broader autism phenotype  children  cognition  long-term memory  visual working memory Index. décimale : PER Périodiques Résumé : Prior research has suggested that individuals with Autism Spectrum Disorders (ASD) demonstrate heterogeneity in cognitive efficacy, challenged executive resources but efficient visual processing. These contrasts lead to opposing predictions about visuospatial working memory competency in both ASD and the broader autism phenotype (BAP); compromised by constrained executive processes, but potentially scaffolded by effective visual representation. It is surprising therefore, that there is a paucity of visual working memory (VWM) research in both the ASD and BAP populations, which have focused upon the visual features of the to-be-remembered stimulus. We assessed whether individual differences in VWM were associated with autistic-like traits (ALTs) in the BAP. About 76 children carried out the Visual Just Noticeable Difference task, designed to measure high fidelity feature representation within VWM. ALTs were measured with the Children's Empathy Quotient and Systemizing Quotient. Analyses revealed a significant positive relationship between Systemizing and VWM performance. This complements ASD studies in visual processing and highlights the need for further research on the working memory-long-term memory interface in ASD and BAP populations. Autism Research 2018, 11: 1494-1499. (c) 2018 International Society for Autism Research, Wiley Periodicals, Inc. LAY SUMMARY: This study was interested in how well children with high levels of autistic-like traits (ALTs) carry out a task which involved memorizing, for brief time, the precise size of colored shapes. The results suggested that children with high levels of ALTs performed the task relatively well. This finding is in contrast to many previous studies suggest that ALTs are associated with poor memory, and suggests that future research needs to look more finely at how individuals carry out these tasks. En ligne : http://dx.doi.org/10.1002/aur.2028 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=370 [article] Autistic-like traits in children are associated with enhanced performance in a qualitative visual working memory task [Texte imprimé et/ou numérique] / C. J. HAMILTON, Auteur ; I. C. MAMMARELLA, Auteur ; D. GIOFRE, Auteur . - p.1494-1499. Langues : Anglais (eng) in Autism Research > 11-11 (November 2018) . - p.1494-1499 Mots-clés : broader autism phenotype  children  cognition  long-term memory  visual working memory Index. décimale : PER Périodiques Résumé : Prior research has suggested that individuals with Autism Spectrum Disorders (ASD) demonstrate heterogeneity in cognitive efficacy, challenged executive resources but efficient visual processing. These contrasts lead to opposing predictions about visuospatial working memory competency in both ASD and the broader autism phenotype (BAP); compromised by constrained executive processes, but potentially scaffolded by effective visual representation. It is surprising therefore, that there is a paucity of visual working memory (VWM) research in both the ASD and BAP populations, which have focused upon the visual features of the to-be-remembered stimulus. We assessed whether individual differences in VWM were associated with autistic-like traits (ALTs) in the BAP. About 76 children carried out the Visual Just Noticeable Difference task, designed to measure high fidelity feature representation within VWM. ALTs were measured with the Children's Empathy Quotient and Systemizing Quotient. Analyses revealed a significant positive relationship between Systemizing and VWM performance. This complements ASD studies in visual processing and highlights the need for further research on the working memory-long-term memory interface in ASD and BAP populations. Autism Research 2018, 11: 1494-1499. (c) 2018 International Society for Autism Research, Wiley Periodicals, Inc. LAY SUMMARY: This study was interested in how well children with high levels of autistic-like traits (ALTs) carry out a task which involved memorizing, for brief time, the precise size of colored shapes. The results suggested that children with high levels of ALTs performed the task relatively well. This finding is in contrast to many previous studies suggest that ALTs are associated with poor memory, and suggests that future research needs to look more finely at how individuals carry out these tasks. En ligne : http://dx.doi.org/10.1002/aur.2028 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=370

No evidence for a core deficit in developmental dyscalculia or mathematical learning disabilities / I. C. MAMMARELLA in Journal of Child Psychology and Psychiatry, 62-6 (June 2021)  

Public ISBD [article]  inJournal of Child Psychology and Psychiatry > 62-6 (June 2021) . - p.704-714 Titre : No evidence for a core deficit in developmental dyscalculia or mathematical learning disabilities Type de document : Texte imprimé et/ou numérique Auteurs : I. C. MAMMARELLA, Auteur ; E. TOFFALINI, Auteur ; S. CAVIOLA, Auteur ; L. COLLING, Auteur ; D. SZ?CS, Auteur Article en page(s) : p.704-714 Langues : Anglais (eng) Mots-clés : Bayes Theorem  Child  Dyscalculia/diagnosis  Humans  Learning Disabilities/diagnosis/epidemiology  Mathematics Index. décimale : PER Périodiques Résumé : BACKGROUND: Two hypotheses were tested regarding the characteristics of children with mathematical learning disabilities (MLD): (a) that children with MLD would have a 'core deficit' in basic number processing skills; and (b) that children with MLD would be at the end of a developmental continuum and have impairments in many cognitive skills. METHODS: From a large sample (N = 1,303) of typically developing children, we selected a group definable as having MLD. The children were given measures of basic number processing and domain-general constructs. Differences between the observed sample and a simulated population were estimated using Cohen's d and Bayes factors. Receiver operating characteristic curves were plotted, and the area under the curve was computed to ascertain the diagnostic power of measures. RESULTS: Results suggest that the differences between the MLD and control group can be defined along with general characteristics of the population rather than assuming single or multiple 'core deficits'. None of the measures of interest exceeded the diagnostic power that could be derived via simulation from the dimensional characteristics of the general population. CONCLUSIONS: There is no evidence for core deficit(s) in MLD. We suggest that future research should focus on representative samples of typical populations and on carefully tested clinical samples confirming to the criteria of international diagnostic manuals. Clinical diagnoses require that MLD is persistent and resistant to intervention, so studies would deliver results less exposed to measurement fluctuations. Uniform diagnostic criteria would also allow for the easy cross-study comparison of samples overcoming a serious limitation of the current literature. En ligne : http://dx.doi.org/10.1111/jcpp.13397 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=455 [article] No evidence for a core deficit in developmental dyscalculia or mathematical learning disabilities [Texte imprimé et/ou numérique] / I. C. MAMMARELLA, Auteur ; E. TOFFALINI, Auteur ; S. CAVIOLA, Auteur ; L. COLLING, Auteur ; D. SZ?CS, Auteur . - p.704-714. Langues : Anglais (eng) in Journal of Child Psychology and Psychiatry > 62-6 (June 2021) . - p.704-714 Mots-clés : Bayes Theorem  Child  Dyscalculia/diagnosis  Humans  Learning Disabilities/diagnosis/epidemiology  Mathematics Index. décimale : PER Périodiques Résumé : BACKGROUND: Two hypotheses were tested regarding the characteristics of children with mathematical learning disabilities (MLD): (a) that children with MLD would have a 'core deficit' in basic number processing skills; and (b) that children with MLD would be at the end of a developmental continuum and have impairments in many cognitive skills. METHODS: From a large sample (N = 1,303) of typically developing children, we selected a group definable as having MLD. The children were given measures of basic number processing and domain-general constructs. Differences between the observed sample and a simulated population were estimated using Cohen's d and Bayes factors. Receiver operating characteristic curves were plotted, and the area under the curve was computed to ascertain the diagnostic power of measures. RESULTS: Results suggest that the differences between the MLD and control group can be defined along with general characteristics of the population rather than assuming single or multiple 'core deficits'. None of the measures of interest exceeded the diagnostic power that could be derived via simulation from the dimensional characteristics of the general population. CONCLUSIONS: There is no evidence for core deficit(s) in MLD. We suggest that future research should focus on representative samples of typical populations and on carefully tested clinical samples confirming to the criteria of international diagnostic manuals. Clinical diagnoses require that MLD is persistent and resistant to intervention, so studies would deliver results less exposed to measurement fluctuations. Uniform diagnostic criteria would also allow for the easy cross-study comparison of samples overcoming a serious limitation of the current literature. En ligne : http://dx.doi.org/10.1111/jcpp.13397 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=455

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