Prolonged neural encoding of visual information in autism / Luca CASARTELLI ; Alessandra FEDERICI ; Sara BERTONI ; Lorenzo VIGNALI ; Massimo MOLTENI ; Andrea FACOETTI ; Luca RONCONI in Autism Research, 17-1 (January 2024)  

Public ISBD [article]  inAutism Research > 17-1 (January 2024) . - p.37-54 Titre : Prolonged neural encoding of visual information in autism Type de document : Texte imprimé et/ou numérique Auteurs : Luca CASARTELLI, Auteur ; Alessandra FEDERICI, Auteur ; Sara BERTONI, Auteur ; Lorenzo VIGNALI, Auteur ; Massimo MOLTENI, Auteur ; Andrea FACOETTI, Auteur ; Luca RONCONI, Auteur Article en page(s) : p.37-54 Index. décimale : PER Périodiques Résumé : Abstract Autism spectrum disorder (ASD) is associated with a hyper-focused visual attentional style, impacting higher-order social and affective domains. The understanding of such peculiarity can benefit from the use of multivariate pattern analysis (MVPA) of high-resolution electroencephalography (EEG) data, which has proved to be a powerful technique to investigate the hidden neural dynamics orchestrating sensory and cognitive processes. Here, we recorded EEG in typically developing (TD) children and in children with ASD during a visuo-spatial attentional task where attention was exogenously captured by a small (zoom-in) or large (zoom-out) cue in the visual field before the appearance of a target at different eccentricities. MVPA was performed both in the cue-locked period, to reveal potential differences in the modulation of the attentional focus, and in the target-locked period, to reveal potential cascade effects on stimulus processing. Cue-locked MVPA revealed that while in the TD group the pattern of neural activity contained information about the cue mainly before the target appearance, the ASD group showed a temporally sustained and topographically diffuse significant decoding of the cue neural response even after the target onset, suggesting a delayed extinction of cue-related neural activity. Crucially, this delayed extinction positively correlated with behavioral measures of attentional hyperfocusing. Results of target-locked MVPA were coherent with a hyper-focused attentional profile, highlighting an earlier and stronger decoding of target neural responses in small cue trials in the ASD group. The present findings document a spatially and temporally overrepresented encoding of visual information in ASD, which can constitute one of the main reasons behind their peculiar cognitive style. En ligne : https://doi.org/10.1002/aur.3062 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=519 [article] Prolonged neural encoding of visual information in autism [Texte imprimé et/ou numérique] / Luca CASARTELLI, Auteur ; Alessandra FEDERICI, Auteur ; Sara BERTONI, Auteur ; Lorenzo VIGNALI, Auteur ; Massimo MOLTENI, Auteur ; Andrea FACOETTI, Auteur ; Luca RONCONI, Auteur . - p.37-54. in Autism Research > 17-1 (January 2024) . - p.37-54 Index. décimale : PER Périodiques Résumé : Abstract Autism spectrum disorder (ASD) is associated with a hyper-focused visual attentional style, impacting higher-order social and affective domains. The understanding of such peculiarity can benefit from the use of multivariate pattern analysis (MVPA) of high-resolution electroencephalography (EEG) data, which has proved to be a powerful technique to investigate the hidden neural dynamics orchestrating sensory and cognitive processes. Here, we recorded EEG in typically developing (TD) children and in children with ASD during a visuo-spatial attentional task where attention was exogenously captured by a small (zoom-in) or large (zoom-out) cue in the visual field before the appearance of a target at different eccentricities. MVPA was performed both in the cue-locked period, to reveal potential differences in the modulation of the attentional focus, and in the target-locked period, to reveal potential cascade effects on stimulus processing. Cue-locked MVPA revealed that while in the TD group the pattern of neural activity contained information about the cue mainly before the target appearance, the ASD group showed a temporally sustained and topographically diffuse significant decoding of the cue neural response even after the target onset, suggesting a delayed extinction of cue-related neural activity. Crucially, this delayed extinction positively correlated with behavioral measures of attentional hyperfocusing. Results of target-locked MVPA were coherent with a hyper-focused attentional profile, highlighting an earlier and stronger decoding of target neural responses in small cue trials in the ASD group. The present findings document a spatially and temporally overrepresented encoding of visual information in ASD, which can constitute one of the main reasons behind their peculiar cognitive style. En ligne : https://doi.org/10.1002/aur.3062 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=519

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