Hemispheric asymmetries for global and local visual perception: Effects of stimulus and task factors

Galit Yovel*, Iftah Yovel, Jerre Levy

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

117 Scopus citations

Abstract

Although neurological and physiological studies indicate a right hemisphere superiority in global processing and a left hemisphere superiority in local processing of Navon-type hierarchical letters (D. Navon, 1977), most investigations of lateralized perception in healthy participants report neither asymmetry. In 6 experiments the authors examined the influence of attentional demands, stimulus properties, and mode of response on perceptual asymmetries for global and local perception. Consistent with their theoretical predictions, asymmetries were more robust on divided-than focused-attention tasks and in response to stimuli in which local and global levels were equally salient compared with those with greater global than local saliency. Contrary to their prediction, perceptual asymmetries were not influenced by the complexity of the motor response.

Original languageAmerican English
Pages (from-to)1369-1385
Number of pages17
JournalJournal of Experimental Psychology: Human Perception and Performance
Volume27
Issue number6
DOIs
StatePublished - Dec 2001

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