Local processing enhancements associated with superior observational drawing are due to enhanced perceptual functioning, not weak central coherence

Chamberlain, Rebecca, McManus, I. C., Riley, Howard, Rankin, Qona and Brunswick, Nicola ORCID: https://orcid.org/0000-0002-6652-5016 (2013) Local processing enhancements associated with superior observational drawing are due to enhanced perceptual functioning, not weak central coherence. The Quarterly Journal of Experimental Psychology, 66 (7) . ISSN 1747-0226 [Article] (doi:10.1080/17470218.2012.750678)

Abstract

Individuals with drawing talent have previously been shown to exhibit enhanced local visual processing ability. The aim of the current study was to assess whether local processing biases associated with drawing ability result from a reduced ability to cohere local stimuli into global forms, or an increased ability to disregard global aspects of an image. Local and global visual processing ability was assessed in art students and controls using the Group Embedded Figures Task, Navon shape stimuli, the Block Design Task and the Autism Spectrum Quotient, whilst controlling for non verbal IQ and artistic ability. Local processing biases associated with drawing appear to arise from an enhancement of local processing alongside successful filtering of global information, rather than a reduction in global processing. The relationship between local processing and drawing ability is independent of individual differences in non verbal IQ and artistic ability. These findings have implications for bottom up
and attentional theories of observational drawing, as well as explanations of special skills in autism.

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