de Wit, Lee

Evers, Kris

Haesen, Birgit

Noens, Ilse

Steyeart, Jean

Van der Hallen, Ruth

Wagemans, Johan

English

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Experiment 1• Object tracking is hampered by task-irrelevant grouping• Grouping interference is stronger for TD than ASDExperiment 2• Object tracking is hampered by both types of task-irrelevant grouping• Grouping interference is similar for TD than for ASD sampleResultsGrouping Interference in ASD: Evidence from a Series of Multiple Object Tracking Experiments  Ruth Van der Hallen 1,2 , Kris Evers 1, 2, 3, Lee de-Wit 1, Birgitt Haesen 1, 2, 3, Jean Steyaert 2, 3, Ilse Noens 2, 4, 5, & Johan Wagemans 1, 2 (1) Laboratory of Experimental Psychology, KU Leuven, Belgium; (2) Leuven Autism Research (LAuRes), KU Leuven, Belgium; (3) Child and Adolescent Psychiatry, KU Leuven, Belgium; (4) Parenting and Special Education Research Unit, KU Leuven, Belgium; (5) Psychiatric and Neurodevelopmental Genetics Unit, Massachusetts General Hospital, Boston, USAMethodsExperiment 1Participants• 18 children with ASD (6-10 years old)• 33 children without ASD=> Matched for age, gender-ratio and IQDesign• Multiple object tracking of:• four randomly moving targets• four randomly moving distracters • Ungrouped vs grouped conditions = ratio 1:1Experiment 2Participants• 26 children with ASD (8-14 years old)• 27 children without ASD=> Matched for age, gender-ratio and IQDesign• Multiple object tracking of:• four randomly moving targets• four randomly moving distracters • Ungrouped vs grouped conditions ratio = 1:2Supported by the Methusalem program by  the Flemish Government (METH/08/02)Contact: ruth.vanderhallen@ppw.kuleuven.be www.gestaltrevision.be• In TD children: clear evidence of grouping interference on tracking ability• In ASD children: mixed evidence of grouping interference on tracking ability• Results indicate atypical visual processing in ASD is dependent on the specific task and stimulus set, what suggests a qualitative difference in visual processing rather than a general visual processing deficit in ASD. ConclusionsIntroductionBackground • Individuals with ASD are known to suffer from atypical perceptual organization and inadequate motion perception • Perceptual organization of a visual display influences the allocation of attention in a multiple object tracking task (Scholl et al. 2001)Objectives• Investigate the effect of connection-based grouping in children with and without ASD by means of a multiple object tracking task Experiment 2Experiment 1Resultsaabbc** * *****

Grouping interference in ASD:Evidence from a series of multiple object tracking experiments

https://pure.eur.nl/files/74621071/2014_R._Van_der_Hallen_DVDP.pdf

Grouping interference in ASD:Evidence from a series of multiple object tracking experiments

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