TY - JOUR VL - 4 SP - 283 IS - 4 N1 - This is the pre-peer reviewed version of the following article: Farran, EK; Brosnan, MJ; (2011) Perceptual grouping abilities in individuals with autism spectrum disorder; exploring patterns of ability in relation to grouping type and levels of development. Autism Research, 4 (4) pp. 283-292, which has been published in final form at: http://dx.doi.org/10.1002/aur.202. This article may be used for non-commercial purposes in accordance with Wiley Terms and Conditions for Self-Archiving. UR - http://dx.doi.org/10.1002/aur.202 SN - 1939-3806 A1 - Farran, EK A1 - Brosnan, MJ JF - Autism Research AV - public Y1 - 2011/08// EP - 292 TI - Perceptual grouping abilities in individuals with autism spectrum disorder; exploring patterns of ability in relation to grouping type and levels of development N2 - This study further investigates findings of impairment in Gestalt, but not global processing in Autism Spectrum Disorder (ASD) [Brosnan, Scott, Fox, & Pye, 2004]. Nineteen males with ASD and nineteen typically developing (TD) males matched by nonverbal ability, took part in five Gestalt perceptual grouping tasks. Results showed that performance differed according to grouping type. The ASD group showed typical performance for grouping by proximity and by alignment, impairment on low difficulty trials for orientation and luminance similarity, and general impairment for grouping by shape similarity. Group differences were also observed developmentally; for the ASD group, with the exception of grouping by shape similarity, perceptual grouping performance was poorer at lower than higher levels of nonverbal ability. In contrast, no developmental progression was observed in the TD controls. ID - discovery1477855 KW - Analysis of Variance KW - Child KW - Child Development KW - Child Development Disorders KW - Pervasive KW - Humans KW - Male KW - Pattern Recognition KW - Visual KW - Perceptual Disorders KW - Psychomotor Performance KW - Space Perception KW - Visual Perception ER -