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Deficient visuospatial working memory functions and neural correlates of the default-mode network in adolescents with autism spectrum disorder / Hsiang-Yun CHIEN in Autism Research, 9-10 (October 2016)
[article]
Titre : Deficient visuospatial working memory functions and neural correlates of the default-mode network in adolescents with autism spectrum disorder Type de document : Texte imprimé et/ou numérique Auteurs : Hsiang-Yun CHIEN, Auteur ; Susan Shur-Fen GAU, Auteur ; Wen-Yih ISAAC TSENG, Auteur Article en page(s) : p.1058-1072 Langues : Anglais (eng) Mots-clés : autism spectrum disorder default-mode network visuospatial working memory structural connectivity functional connectivity Index. décimale : PER Périodiques Résumé : In addition to the essential features of autism spectrum disorder (ASD), namely social communication deficits and repetitive behaviors, individuals with ASD may suffer from working memory deficits and an altered default-mode network (DMN). We hypothesized that an altered DMN is related to working memory deficits in those with ASD. A total of 37 adolescents with ASD and 36 age- and IQ-matched typically developing (TD) controls were analyzed. Visuospatial working memory performance was assessed using pattern recognition memory (PRM), spatial recognition memory (SRM), and paired-associates learning (PAL) tasks. The intrinsic functional connectivity (iFC) of the DMN was indexed by the temporal correlations between the resting-state functional magnetic resonance imaging signals of pairs of DMN regions, including those between the posterior cingulate cortex (PCC) and medial prefrontal cortex (mPFC) and between the PCC and parahippocampi (PHG). The corresponding structural connectivity of the DMN was indexed by the generalized fractional anisotropy (GFA) of the dorsal and ventral cingulum bundles on the basis of diffusion spectrum imaging data. The results showed that ASD adolescents exhibited delayed correct responses in PRM and SRM tasks and committed more errors in the PAL task than the TD controls did. The delayed responses during the PRM and SRM tasks were negatively correlated with bilateral PCC–mPFC iFCs, and PAL performance was negatively correlated with right PCC–PHG iFC in ASD adolescents. Furthermore, ASD adolescents showed significant lower GFA in the right cingulum bundles than the TD group did; the GFA value was negatively correlated with SRM performance in ASD. Our results provide empirical evidence for deficient visuospatial working memory and corresponding neural correlates within the DMN in adolescents with ASD. En ligne : http://dx.doi.org/10.1002/aur.1607 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=294
in Autism Research > 9-10 (October 2016) . - p.1058-1072[article] Deficient visuospatial working memory functions and neural correlates of the default-mode network in adolescents with autism spectrum disorder [Texte imprimé et/ou numérique] / Hsiang-Yun CHIEN, Auteur ; Susan Shur-Fen GAU, Auteur ; Wen-Yih ISAAC TSENG, Auteur . - p.1058-1072.
Langues : Anglais (eng)
in Autism Research > 9-10 (October 2016) . - p.1058-1072
Mots-clés : autism spectrum disorder default-mode network visuospatial working memory structural connectivity functional connectivity Index. décimale : PER Périodiques Résumé : In addition to the essential features of autism spectrum disorder (ASD), namely social communication deficits and repetitive behaviors, individuals with ASD may suffer from working memory deficits and an altered default-mode network (DMN). We hypothesized that an altered DMN is related to working memory deficits in those with ASD. A total of 37 adolescents with ASD and 36 age- and IQ-matched typically developing (TD) controls were analyzed. Visuospatial working memory performance was assessed using pattern recognition memory (PRM), spatial recognition memory (SRM), and paired-associates learning (PAL) tasks. The intrinsic functional connectivity (iFC) of the DMN was indexed by the temporal correlations between the resting-state functional magnetic resonance imaging signals of pairs of DMN regions, including those between the posterior cingulate cortex (PCC) and medial prefrontal cortex (mPFC) and between the PCC and parahippocampi (PHG). The corresponding structural connectivity of the DMN was indexed by the generalized fractional anisotropy (GFA) of the dorsal and ventral cingulum bundles on the basis of diffusion spectrum imaging data. The results showed that ASD adolescents exhibited delayed correct responses in PRM and SRM tasks and committed more errors in the PAL task than the TD controls did. The delayed responses during the PRM and SRM tasks were negatively correlated with bilateral PCC–mPFC iFCs, and PAL performance was negatively correlated with right PCC–PHG iFC in ASD adolescents. Furthermore, ASD adolescents showed significant lower GFA in the right cingulum bundles than the TD group did; the GFA value was negatively correlated with SRM performance in ASD. Our results provide empirical evidence for deficient visuospatial working memory and corresponding neural correlates within the DMN in adolescents with ASD. En ligne : http://dx.doi.org/10.1002/aur.1607 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=294 Executive function predicts the visuospatial working memory in autism spectrum disorder and attention-deficit/hyperactivity disorder / Z. WANG in Autism Research, 11-8 (August 2018)
[article]
Titre : Executive function predicts the visuospatial working memory in autism spectrum disorder and attention-deficit/hyperactivity disorder Type de document : Texte imprimé et/ou numérique Auteurs : Z. WANG, Auteur ; J. JING, Auteur ; K. IGARASHI, Auteur ; L. FAN, Auteur ; S. YANG, Auteur ; Y. LI, Auteur ; Y. JIN, Auteur Article en page(s) : p.1148-1156 Langues : Anglais (eng) Mots-clés : attention-deficit/hyperactivity disorder autism spectrum disorder executive function visuospatial working memory Index. décimale : PER Périodiques Résumé : Children with autism spectrum disorder (ASD) and those with attention deficit/hyperactivity disorder (ADHD) always show working memory deficits. However, research findings on the factors that affected the working memory in ASD and ADHD were inconsistent. Thus, we developed the present study to investigate the association of executive function (EF) with the visuospatial working memory (VSWM) in ASD and ADHD. Three groups of participants were examined: 21 children with ASD, 28 children with ADHD and 28 typically developing (TD) children as the controls. All participants completed two tests: the Wisconsin Card Sorting Test (WCST) and the Corsi Block Tapping Test for measuring EF and VSWM, respectively. The WCST included four domains: categories achieved (CA), perseverative errors (PE), failures to maintain set (FMS), and total errors (TE). The findings indicated that (1) the ASD group showed poorer performance in VSWM than the ADHD and TD groups; (2) for the ASD group, VSWM was positively correlated with CA, and was negatively correlated with PE and TE; (3) for the ADHD group, FMS showed a negative relationship with VSWM; and (4) TE predicted the performance of VSWM in ASD group, while FMS predicted VSWM in ADHD group. The study results suggested that VSWM was impaired in ASD but not in ADHD. Also, the EF domains were differently correlated with the VSWM performance in ASD and ADHD. Our study suggests that we should consider different intervention targets of working memory and EF contributions in improving the cognitive capacity of ASD and ADHD. Autism Res 2018, 11: 1148-1156. (c) 2018 International Society for Autism Research, Wiley Periodicals, Inc. LAY SUMMARY: The present study compared the visuospatial working memory (VSWM) in three groups of children: autism (ASD), attention deficit/hyperactivity disorder (ADHD), and typically developed children (TD). The ASD group showed poorer VSWM than the ADHD and TD groups. The total error of executive function predicted the performance of VSWM in ASD, while failures to maintain set predicted VSWM in ADHD . These findings suggested that we should consider the different working memory and executive function training targets to increase cognitive capacity of ASD and ADHD. En ligne : http://dx.doi.org/10.1002/aur.1967 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=369
in Autism Research > 11-8 (August 2018) . - p.1148-1156[article] Executive function predicts the visuospatial working memory in autism spectrum disorder and attention-deficit/hyperactivity disorder [Texte imprimé et/ou numérique] / Z. WANG, Auteur ; J. JING, Auteur ; K. IGARASHI, Auteur ; L. FAN, Auteur ; S. YANG, Auteur ; Y. LI, Auteur ; Y. JIN, Auteur . - p.1148-1156.
Langues : Anglais (eng)
in Autism Research > 11-8 (August 2018) . - p.1148-1156
Mots-clés : attention-deficit/hyperactivity disorder autism spectrum disorder executive function visuospatial working memory Index. décimale : PER Périodiques Résumé : Children with autism spectrum disorder (ASD) and those with attention deficit/hyperactivity disorder (ADHD) always show working memory deficits. However, research findings on the factors that affected the working memory in ASD and ADHD were inconsistent. Thus, we developed the present study to investigate the association of executive function (EF) with the visuospatial working memory (VSWM) in ASD and ADHD. Three groups of participants were examined: 21 children with ASD, 28 children with ADHD and 28 typically developing (TD) children as the controls. All participants completed two tests: the Wisconsin Card Sorting Test (WCST) and the Corsi Block Tapping Test for measuring EF and VSWM, respectively. The WCST included four domains: categories achieved (CA), perseverative errors (PE), failures to maintain set (FMS), and total errors (TE). The findings indicated that (1) the ASD group showed poorer performance in VSWM than the ADHD and TD groups; (2) for the ASD group, VSWM was positively correlated with CA, and was negatively correlated with PE and TE; (3) for the ADHD group, FMS showed a negative relationship with VSWM; and (4) TE predicted the performance of VSWM in ASD group, while FMS predicted VSWM in ADHD group. The study results suggested that VSWM was impaired in ASD but not in ADHD. Also, the EF domains were differently correlated with the VSWM performance in ASD and ADHD. Our study suggests that we should consider different intervention targets of working memory and EF contributions in improving the cognitive capacity of ASD and ADHD. Autism Res 2018, 11: 1148-1156. (c) 2018 International Society for Autism Research, Wiley Periodicals, Inc. LAY SUMMARY: The present study compared the visuospatial working memory (VSWM) in three groups of children: autism (ASD), attention deficit/hyperactivity disorder (ADHD), and typically developed children (TD). The ASD group showed poorer VSWM than the ADHD and TD groups. The total error of executive function predicted the performance of VSWM in ASD, while failures to maintain set predicted VSWM in ADHD . These findings suggested that we should consider the different working memory and executive function training targets to increase cognitive capacity of ASD and ADHD. En ligne : http://dx.doi.org/10.1002/aur.1967 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=369 Phonological and Visuospatial Working Memory in Autism Spectrum Disorders / P. MACIZO in Journal of Autism and Developmental Disorders, 46-9 (September 2016)
[article]
Titre : Phonological and Visuospatial Working Memory in Autism Spectrum Disorders Type de document : Texte imprimé et/ou numérique Auteurs : P. MACIZO, Auteur ; M. F. SORIANO, Auteur ; N. PAREDES, Auteur Article en page(s) : p.2956-2967 Langues : Anglais (eng) Mots-clés : Autism Phonological working memory Visuospatial working memory Index. décimale : PER Périodiques Résumé : We evaluated phonological and visuospatial working memory (WM) in autism spectrum disorders. Autistic children and typically developing children were compared. We used WM tasks that measured phonological and visuospatial WM up to the capacity limit of each children. Overall measures of WM did not show differences between autistic children and control children. However, when the recall of children was examined in detail, autistic children showed reduced phonological WM compared with control children. Moreover, phonological and visuospatial WM did not increase with the age of autistic children while a development of phonological and visuospatial WM with age was found in control children. The pattern of results is discussed in terms of previous studies about WM and autism. En ligne : http://dx.doi.org/10.1007/s10803-016-2835-0 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=292
in Journal of Autism and Developmental Disorders > 46-9 (September 2016) . - p.2956-2967[article] Phonological and Visuospatial Working Memory in Autism Spectrum Disorders [Texte imprimé et/ou numérique] / P. MACIZO, Auteur ; M. F. SORIANO, Auteur ; N. PAREDES, Auteur . - p.2956-2967.
Langues : Anglais (eng)
in Journal of Autism and Developmental Disorders > 46-9 (September 2016) . - p.2956-2967
Mots-clés : Autism Phonological working memory Visuospatial working memory Index. décimale : PER Périodiques Résumé : We evaluated phonological and visuospatial working memory (WM) in autism spectrum disorders. Autistic children and typically developing children were compared. We used WM tasks that measured phonological and visuospatial WM up to the capacity limit of each children. Overall measures of WM did not show differences between autistic children and control children. However, when the recall of children was examined in detail, autistic children showed reduced phonological WM compared with control children. Moreover, phonological and visuospatial WM did not increase with the age of autistic children while a development of phonological and visuospatial WM with age was found in control children. The pattern of results is discussed in terms of previous studies about WM and autism. En ligne : http://dx.doi.org/10.1007/s10803-016-2835-0 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=292