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Direct linkAlmeida, Renita A.; Dickinson, J. Edwin; Maybery, Murray T.; Badcock, Johanna C.; Badcock, David R. – Journal of Autism and Developmental Disorders, 2013
Relative to low scorers, high scorers on the Autism-Spectrum Quotient (AQ) show enhanced performance on the Embedded Figures Test and the Radial Frequency search task (RFST), which has been attributed to both enhanced local processing and differences in combining global percepts. We investigate the role of local and global processing further using…
Descriptors: Cognitive Processes, Eye Movements, Pervasive Developmental Disorders, Visual Perception
Almeida, Renita A.; Dickinson, J. Edwin; Maybery, Murray T.; Badcock, Johanna C.; Badcock, David R. – Neuropsychologia, 2010
The Embedded Figures Test (EFT) requires detecting a shape within a complex background and individuals with autism or high Autism-spectrum Quotient (AQ) scores are faster and more accurate on this task than controls. This research aimed to uncover the visual processes producing this difference. Previously we developed a search task using radial…
Descriptors: Autism, Visual Perception, Cues, Reaction Time
Grinter, Emma J.; Maybery, Murray T.; Van Beek, Pia L.; Pellicano, Elizabeth; Badcock, Johanna C.; Badcock, David R. – Journal of Autism and Developmental Disorders, 2009
The current research investigated, firstly, whether individuals with high levels of mild autistic-like traits display a similar profile of embedded figures test (EFT) and global motion performance to that seen in autism. Secondly, whether differences in EFT performance are related to enhanced local processing or reduced global processing in the…
Descriptors: Autism, Motion, Visual Measures, Visual Perception
Grinter, Emma J.; Maybery, Murray T.; Pellicano, Elizabeth; Badcock, Johanna C.; Badcock, David R. – Journal of Child Psychology and Psychiatry, 2010
Background: Several researchers have found evidence for impaired global processing in the dorsal visual stream in individuals with autism spectrum disorders (ASDs). However, support for a similar pattern of visual processing in the ventral visual stream is less consistent. Critical to resolving the inconsistency is the assessment of local and…
Descriptors: Autism, Pervasive Developmental Disorders, Visual Perception, Geometric Concepts
Almeida, Renita A.; Dickinson, J. Edwin; Maybery, Murray T.; Badcock, Johanna C.; Badcock, David R. – Neuropsychologia, 2010
The Embedded Figure Test (EFT) requires locating a simple shape embedded within a background of overlapping target-irrelevant scene elements. Observers with autism, or those with high levels of autistic-like traits, typically outperform matched comparison groups on the EFT. This research investigated the critical visual properties which give rise…
Descriptors: Autism, Scores, Matched Groups, Visual Perception
