[article]
| Titre : |
Reduced Hand Specialization and Idiosyncratic Visuomotor Strategies in Autism During Naturalistic Object Manipulation |
| Type de document : |
texte imprimé |
| Auteurs : |
Emily FEWSTER, Auteur ; Bat-Sheva HADAD, Auteur ; Erez FREUD, Auteur |
| Article en page(s) : |
e70180 |
| Langues : |
Anglais (eng) |
| Mots-clés : |
grasping handedness lateralization specilization visuomotor control |
| Index. décimale : |
PER Périodiques |
| Résumé : |
ABSTRACT Autistic individuals exhibit altered perceptual and visuomotor behaviors, potentially due to reduced cortical specialization. The current study focuses on handedness, a robust marker of cerebral specialization, which is less right-biased in autism. Previous studies have typically assessed handedness via questionnaires or simple manual tasks that do not characterize the dynamic, on-going nature of real-life actions. To address this gap, autistic and non-autistic right-handed adults recreated LEGO models from blocks placed on a standardized tabletop, enabling analysis of dynamic, real-world visuomotor behaviors. Autistic participants displayed a lower proportion of right-hand grasps and fewer contralateral movements (i.e., crossing the body midline) with their right hand. Additionally, we observed differences in 3D space utilization, such that autistic participants exhibited a stronger preference for blocks placed closer to their hands. Finally, autistic participants were slower, and their movement trajectories were more idiosyncratic when compared with non-autistic participants. These results reveal reduced hand specialization and profound visuomotor control differences in autism, highlighting potential clinical utility for early, objective autism markers. |
| En ligne : |
https://doi.org/10.1002/aur.70180 |
| Permalink : |
https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=583 |
in Autism Research > 19-3 (March 2026) . - e70180
[article] Reduced Hand Specialization and Idiosyncratic Visuomotor Strategies in Autism During Naturalistic Object Manipulation [texte imprimé] / Emily FEWSTER, Auteur ; Bat-Sheva HADAD, Auteur ; Erez FREUD, Auteur . - e70180. Langues : Anglais ( eng) in Autism Research > 19-3 (March 2026) . - e70180
| Mots-clés : |
grasping handedness lateralization specilization visuomotor control |
| Index. décimale : |
PER Périodiques |
| Résumé : |
ABSTRACT Autistic individuals exhibit altered perceptual and visuomotor behaviors, potentially due to reduced cortical specialization. The current study focuses on handedness, a robust marker of cerebral specialization, which is less right-biased in autism. Previous studies have typically assessed handedness via questionnaires or simple manual tasks that do not characterize the dynamic, on-going nature of real-life actions. To address this gap, autistic and non-autistic right-handed adults recreated LEGO models from blocks placed on a standardized tabletop, enabling analysis of dynamic, real-world visuomotor behaviors. Autistic participants displayed a lower proportion of right-hand grasps and fewer contralateral movements (i.e., crossing the body midline) with their right hand. Additionally, we observed differences in 3D space utilization, such that autistic participants exhibited a stronger preference for blocks placed closer to their hands. Finally, autistic participants were slower, and their movement trajectories were more idiosyncratic when compared with non-autistic participants. These results reveal reduced hand specialization and profound visuomotor control differences in autism, highlighting potential clinical utility for early, objective autism markers. |
| En ligne : |
https://doi.org/10.1002/aur.70180 |
| Permalink : |
https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=583 |
|  |
Reduced Hand Specialization and Idiosyncratic Visuomotor Strategies in Autism During Naturalistic Object Manipulation in Autism Research, 19-3 (March 2026)
