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Published on: October 3, 2018
The impact of meaning and dimensionality on copying accuracy in individuals with autism
Elizabeth Sheppard1, Danielle Ropar, Peter Mitchell
1School of Psychology, University of Nottingham, University Park, Nottingham NG7 2RD, UK. lpxes@psychology.nottingham.ac.uk
Abstract:
Weak Central Coherence (Frith, 1989) predicts that, in autism, perceptual processing is relatively unaffected by conceptual analysis. Enhanced Perceptual Functioning (Mottron & Burack, 2001) predicts that the perceptual processing of those with autism is less influenced by conceptual analysis only when higher-level processing is detrimental to task performance. This research tested these theories using a copying task where one conceptual aspect enhances accuracy (meaningfulness) and another hinders it (three-dimensionality). Children and adolescents with and without autism copied meaningful and non-meaningful two-dimensional and three-dimensional line drawings. Drawing accuracy and strategy (global/local) were assessed. Participants with autism were less affected by dimensionality but not meaningfulness, apparently supporting EPF. Effects of dimensionality did not relate to drawing strategy, also contrary to WCC.
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