Abstract
The multiple object tracking (MOT) paradigm has proven its value in targeting a number of aspects of visual cognition. This study used MOT to investigate the effect of object-based grouping, both in children with and without autism spectrum disorder (ASD). A modified MOT task was administered to both groups, who had to track and distinguish four targets that moved randomly amongst four distracters, irrespective of the grouping condition. No group difference was revealed between children with and without ASD: both showed adequate MOT abilities and a similar amount of grouping interference. Implications of the current result are considered for previous MOT studies, the developmental trajectory of perceptual grouping, and the idea of heightened sensitivity to task characteristics in ASD.
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Notes
One could argue that all types of grouping used by Scholl et al. (2001) are forms of object-based grouping, even those where target and distractor were grouped by as little as a dotted line, and that merely the precise strength by which a perceptual object (or proto-object) is generated, varies. However, for clarity reasons, we will use the term object-based grouping only to refer to those types of grouping that actually generate the percept of a single 3D object.
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Acknowledgments
The authors would like to thank all participants and their families for their time and contribution to this research, as well as the participating schools for allowing us into their classrooms. In addition, we would like to thank our master students, Sophie Duchesne, Helen Goovaerts, Nele Soors and Astrid Van Der Most, who have collaborated on this project and have helped with the data collection. This research was funded by a Methusalem grant awarded to Johan Wagemans by the Flemish Government (METH/08/02).
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Van der Hallen, R., Evers, K., de-Wit, L. et al. Multiple Object Tracking Reveals Object-Based Grouping Interference in Children with ASD. J Autism Dev Disord 48, 1341–1349 (2018). https://doi.org/10.1007/s10803-015-2463-0
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DOI: https://doi.org/10.1007/s10803-015-2463-0