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- W4380606483 endingPage "9211" @default.
- W4380606483 startingPage "9186" @default.
- W4380606483 abstract "Abstract The neural underpinnings of enhanced locally oriented visual processing that are specific to autistics with a Wechsler’s Block Design (BD) peak are largely unknown. Here, we investigated the brain correlates underlying visual segmentation associated with the well-established autistic superior visuospatial abilities in distinct subgroups using functional magnetic resonance imaging. This study included 31 male autistic adults (15 with (AUTp) and 16 without (AUTnp) a BD peak) and 28 male adults with typical development (TYP). Participants completed a computerized adapted BD task with models having low and high perceptual cohesiveness (PC). Despite similar behavioral performances, AUTp and AUTnp showed generally higher occipital activation compared with TYP participants. Compared with both AUTnp and TYP participants, the AUTp group showed enhanced task-related functional connectivity within posterior visuoperceptual regions and decreased functional connectivity between frontal and occipital-temporal regions. A diminished modulation in frontal and parietal regions in response to increased PC was also found in AUTp participants, suggesting heavier reliance on low-level processing of global figures. This study demonstrates that enhanced visual functioning is specific to a cognitive phenotypic subgroup of autistics with superior visuospatial abilities and reinforces the need to address autistic heterogeneity by good cognitive characterization of samples in future studies." @default.
- W4380606483 created "2023-06-15" @default.
- W4380606483 creator A5017598141 @default.
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- W4380606483 creator A5029778876 @default.
- W4380606483 creator A5042767549 @default.
- W4380606483 creator A5077210721 @default.
- W4380606483 date "2023-06-14" @default.
- W4380606483 modified "2023-10-14" @default.
- W4380606483 title "Different levels of visuospatial abilities linked to differential brain correlates underlying visual mental segmentation processes in autism" @default.
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