one hand, two hands, two people: prospective sensorimotor control in children with autism
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ID: 213244
2018
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Abstract
Where grasps are made reveals how grasps are planned. The grasp height effect predicts that, when people take hold of an object to move it to a new position, the grasp height on the object is inversely related to the height of the target position. In the present study, we used this effect as a window into the prospective sensorimotor control of children with autism spectrum disorders without accompanying intellectual impairment. Participants were instructed to grasp a vertical cylinder and move it from a table (home position) to a shelf of varying height (target position). Depending on the conditions, they performed the task using only one hand (unimanual), two hands (bimanual), or with the help of a co-actor (joint). Comparison between the performance of typically developing children and children with autism revealed no group difference across tasks. We found, however, a significant influence of IQ on grasp height modulation in both groups. These results provide clear evidence against a general prospective sensorimotor planning deficit and suggest that at least some form of higher order planning is present in autism without accompanying intellectual impairment. Keywords: Autism, Prospective control, Grasp height effect, Sensorimotor, Kinematics, Joint action
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ansuini2018developmentalone
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| Authors | ;Caterina Ansuini;Jessica Podda;Francesca Maria Battaglia;Edvige Veneselli;Cristina Becchio |
| Journal | Scientometrics |
| Year | 2018 |
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