Oculomotor behavior in children with autism spectrum disorders / Simona CALDANI in Autism, 24-3 (April 2020)  

Public ISBD [article]  inAutism > 24-3 (April 2020) . - p.670-679 Titre : Oculomotor behavior in children with autism spectrum disorders Type de document : texte imprimé Auteurs : Simona CALDANI, Auteur ; Sarah STEG, Auteur ; Aline LEFEBVRE, Auteur ; Paola ATZORI, Auteur ; Hugo PEYRE, Auteur ; Richard DELORME, Auteur ; Maria Pia BUCCI, Auteur Article en page(s) : p.670-679 Langues : Anglais (eng) Mots-clés : autism spectrum disorder  children  express saccades  inhibitory mechanism  latency Index. décimale : PER Périodiques Résumé : To identify quantitative indicators of social communication dysfunctions, we explored the oculomotor performances in subjects with autism spectrum disorders. Discordant findings in the literature have been reported for oculomotor behavior in subjects with autism spectrum disorders. This study aimed to explore reflexive and voluntary saccadic performance in a group of 32 children with autism spectrum disorders (mean age: 12.1 +/- 0.5 years) compared to 32 age-, sex-, and IQ-matched typically developing children (control group). We used different types of reflexive and voluntary saccades: gap, step, overlap, and anti-saccades. Eye movements were recorded using an eye tracker (Mobile EBT((R))) and we measured latency, percentage of anticipatory and express saccades, errors of anti-saccades and gain. Children with autism spectrum disorders reported similar latency values with respect to typically developing children for reflexive and voluntary saccades; in contrast, they made more express and anticipatory saccades overall, as shown in paradigm testing (gap, step, overlap, and anti-saccades). Our findings support previous evidence of the atypicality of the cortical network, which is involved in saccade triggering and attentional processes in children with autism spectrum disorders. En ligne : http://dx.doi.org/10.1177/1362361319882861 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=422 [article] Oculomotor behavior in children with autism spectrum disorders [texte imprimé] / Simona CALDANI, Auteur ; Sarah STEG, Auteur ; Aline LEFEBVRE, Auteur ; Paola ATZORI, Auteur ; Hugo PEYRE, Auteur ; Richard DELORME, Auteur ; Maria Pia BUCCI, Auteur . - p.670-679. Langues : Anglais (eng) in Autism > 24-3 (April 2020) . - p.670-679 Mots-clés : autism spectrum disorder  children  express saccades  inhibitory mechanism  latency Index. décimale : PER Périodiques Résumé : To identify quantitative indicators of social communication dysfunctions, we explored the oculomotor performances in subjects with autism spectrum disorders. Discordant findings in the literature have been reported for oculomotor behavior in subjects with autism spectrum disorders. This study aimed to explore reflexive and voluntary saccadic performance in a group of 32 children with autism spectrum disorders (mean age: 12.1 +/- 0.5 years) compared to 32 age-, sex-, and IQ-matched typically developing children (control group). We used different types of reflexive and voluntary saccades: gap, step, overlap, and anti-saccades. Eye movements were recorded using an eye tracker (Mobile EBT((R))) and we measured latency, percentage of anticipatory and express saccades, errors of anti-saccades and gain. Children with autism spectrum disorders reported similar latency values with respect to typically developing children for reflexive and voluntary saccades; in contrast, they made more express and anticipatory saccades overall, as shown in paradigm testing (gap, step, overlap, and anti-saccades). Our findings support previous evidence of the atypicality of the cortical network, which is involved in saccade triggering and attentional processes in children with autism spectrum disorders. En ligne : http://dx.doi.org/10.1177/1362361319882861 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=422

Short memory-training can improve inhibition functions in children with autism spectrum disorder: Preliminary evidences using an eye-tracker / Simona CALDANI in Research in Autism, 136 (August 2026)  

Public ISBD [article]  inResearch in Autism > 136 (August 2026) . - 202964 Titre : Short memory-training can improve inhibition functions in children with autism spectrum disorder: Preliminary evidences using an eye-tracker Type de document : texte imprimé Auteurs : Simona CALDANI, Auteur ; Elise HUMEAU, Auteur ; Richard DELORME, Auteur ; Maria Pia BUCCI, Auteur Article en page(s) : 202964 Langues : Anglais (eng) Mots-clés : Memory training  Children  ASD  Memory-guided saccades  Inhibition functions Index. décimale : PER Périodiques Résumé : Background Children with Autism Spectrum Disorder (ASD) often exhibit atypical oculomotor behavior and deficits in executive functioning, particularly in tasks involving inhibition and working memory. Eye-tracking paradigms provide objective markers for assessing these functions. Objective To assess whether a brief memory-based cognitive training can modulate saccadic eye movements and improve executive functioning in children with ASD. Method Fifty-four children with ASD were randomly assigned to a training group (G1) or a control group (G2). All participants completed oculomotor tasks before and after the intervention. These tasks included prosaccades (reflexive responses to peripheral stimuli) and memory-guided saccades (requiring inhibition of reflexive responses and spatial memory). G1 underwent 10 min of visuospatial memory training, while G2 had a 10-minute rest period. The main outcome measures included saccadic latency, anticipatory saccades (indicative of impulsivity), and error rate in memory-guided saccades (indicative of working memory performance). Results No significant change in prosaccadic latency was observed in the two groups. In contrast, the occurrence of anticipatory saccades and error rates in memory-guided saccades decreased significantly in G1 only, while G2 showed no change. Conclusion A brief memory training significantly improved oculomotor markers of inhibition and working memory in children with ASD. These findings suggest that memory training may enhance attentional engagement and inhibitory control in this population. En ligne : https://doi.org/10.1016/j.reia.2026.202964 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=592 [article] Short memory-training can improve inhibition functions in children with autism spectrum disorder: Preliminary evidences using an eye-tracker [texte imprimé] / Simona CALDANI, Auteur ; Elise HUMEAU, Auteur ; Richard DELORME, Auteur ; Maria Pia BUCCI, Auteur . - 202964. Langues : Anglais (eng) in Research in Autism > 136 (August 2026) . - 202964 Mots-clés : Memory training  Children  ASD  Memory-guided saccades  Inhibition functions Index. décimale : PER Périodiques Résumé : Background Children with Autism Spectrum Disorder (ASD) often exhibit atypical oculomotor behavior and deficits in executive functioning, particularly in tasks involving inhibition and working memory. Eye-tracking paradigms provide objective markers for assessing these functions. Objective To assess whether a brief memory-based cognitive training can modulate saccadic eye movements and improve executive functioning in children with ASD. Method Fifty-four children with ASD were randomly assigned to a training group (G1) or a control group (G2). All participants completed oculomotor tasks before and after the intervention. These tasks included prosaccades (reflexive responses to peripheral stimuli) and memory-guided saccades (requiring inhibition of reflexive responses and spatial memory). G1 underwent 10 min of visuospatial memory training, while G2 had a 10-minute rest period. The main outcome measures included saccadic latency, anticipatory saccades (indicative of impulsivity), and error rate in memory-guided saccades (indicative of working memory performance). Results No significant change in prosaccadic latency was observed in the two groups. In contrast, the occurrence of anticipatory saccades and error rates in memory-guided saccades decreased significantly in G1 only, while G2 showed no change. Conclusion A brief memory training significantly improved oculomotor markers of inhibition and working memory in children with ASD. These findings suggest that memory training may enhance attentional engagement and inhibitory control in this population. En ligne : https://doi.org/10.1016/j.reia.2026.202964 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=592

Spatial and temporal analysis of postural control in children with high functioning Autism Spectrum Disorder / Nathalie GOULÈME in Research in Autism Spectrum Disorders, 40 (August 2017)  

Public ISBD [article]  inResearch in Autism Spectrum Disorders > 40 (August 2017) . - p.13-23 Titre : Spatial and temporal analysis of postural control in children with high functioning Autism Spectrum Disorder Type de document : texte imprimé Auteurs : Nathalie GOULÈME, Auteur ; Isabelle SCHEID, Auteur ; Hugo PEYRE, Auteur ; Anna MARUANI, Auteur ; Julia CLARKE, Auteur ; Richard DELORME, Auteur ; Maria Pia BUCCI, Auteur Article en page(s) : p.13-23 Langues : Anglais (eng) Mots-clés : Autism spectrum disorder  Children  Postural control  Wavelet transformation  Sensorial inputs Index. décimale : PER Périodiques Résumé : AbstractBackground Children with autism spectrum disorders (ASD) have poor postural stability. The objective of our study was to explore further postural capabilities in ASD children by measuring spatial as well as temporal displacement of the center of pressure using wavelet analysis. Method Thirty children with ASD (12.1 ± 2.9 years) and 30 sex-, age- and IQ-matched typically developing children participated in the study. We recorded postural control using Multitest, also called Balance Quest, Equilibre from Framiral® in three viewing conditions (eyes open, eyes closed and with perturbed vision) and in two postural conditions (stable and unstable). Results Our results show that children with ASD displayed a deficit in postural stability in comparison with typically developing children, especially when sensory inputs are not all available. Conclusion Such poor postural control in children with ASD could be due to both an impairment in using sensorial inputs appropriately and a deficit in the ability to compensate for sensorial changes. En ligne : https://doi.org/10.1016/j.rasd.2017.05.001 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=317 [article] Spatial and temporal analysis of postural control in children with high functioning Autism Spectrum Disorder [texte imprimé] / Nathalie GOULÈME, Auteur ; Isabelle SCHEID, Auteur ; Hugo PEYRE, Auteur ; Anna MARUANI, Auteur ; Julia CLARKE, Auteur ; Richard DELORME, Auteur ; Maria Pia BUCCI, Auteur . - p.13-23. Langues : Anglais (eng) in Research in Autism Spectrum Disorders > 40 (August 2017) . - p.13-23 Mots-clés : Autism spectrum disorder  Children  Postural control  Wavelet transformation  Sensorial inputs Index. décimale : PER Périodiques Résumé : AbstractBackground Children with autism spectrum disorders (ASD) have poor postural stability. The objective of our study was to explore further postural capabilities in ASD children by measuring spatial as well as temporal displacement of the center of pressure using wavelet analysis. Method Thirty children with ASD (12.1 ± 2.9 years) and 30 sex-, age- and IQ-matched typically developing children participated in the study. We recorded postural control using Multitest, also called Balance Quest, Equilibre from Framiral® in three viewing conditions (eyes open, eyes closed and with perturbed vision) and in two postural conditions (stable and unstable). Results Our results show that children with ASD displayed a deficit in postural stability in comparison with typically developing children, especially when sensory inputs are not all available. Conclusion Such poor postural control in children with ASD could be due to both an impairment in using sensorial inputs appropriately and a deficit in the ability to compensate for sensorial changes. En ligne : https://doi.org/10.1016/j.rasd.2017.05.001 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=317

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