title: Brief Report: Coherent Motion Processing in Autism: Is Dot Lifetime an Important Parameter?
abstract: Contrasting reports of reduced and intact sensitivity to coherent motion in autistic individuals may be attributable to stimulus parameters. Here, we investigated whether dot lifetime contributes to elevated thresholds in children with autism. We presented a standard motion coherence task to 31 children with autism and 31 typical children, with both limited and unlimited lifetime conditions. Overall, children had higher thresholds in the limited lifetime condition than in the unlimited lifetime condition. However, children with autism were affected by this manipulation to the same extent as typical children and were equally sensitive to coherent motion. Our results suggest that dot lifetime is not a critical stimulus parameter and speak against pervasive difficulties in coherent motion perception in children with autism.
authors.affiliation: Centre for Research in Autism and Education (CRAE), UCL Institute of Education, University College London, 55-59 Gordon Square, London, WC1H 0NU, UK, catherine.manning@psy.ox.ac.uk.
authors.forename: Catherine
authors.initials: C
authors.lastname: Manning
authors.forename: Tony
authors.initials: T
authors.lastname: Charman
authors.forename: Elizabeth
authors.initials: E
authors.lastname: Pellicano
mesh_terms: D000293:Adolescent; D001321:Autistic Disorder / Q000523:psychology*; D016022:Case-Control Studies; D002648:Child; D005260:Female; D006801:Humans; D008297:Male; D009039:Motion Perception; D010775:Photic Stimulation / Q000379:methods*; D013997:Time Factors