Hemispheric Asymmetries for Global and Local Visual Perception: Effects of Stimulus and Task Factors

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 neith...

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Bibliographic Details
Published in:Journal of experimental psychology. Human perception and performance 2001-12, Vol.27 (6), p.1369-1385
Main Authors: Yovel, Galit, Yovel, Iftah, Levy, Jerre
Format: Article
Language:English
Subjects:
Adolescent
Adult
Attention
Biological and medical sciences
Brain - physiology
Cognition & reasoning
Eyes & eyesight
Female
Functional Laterality - physiology
Fundamental and applied biological sciences. Psychology
Human
Humans
Lateral Dominance
Male
Perception
Psychology. Psychoanalysis. Psychiatry
Psychology. Psychophysiology
Psychomotor Performance - physiology
Random Allocation
Reaction Time
Response Parameters
Sensory perception
Stimulus Parameters
Task analysis
Vision
Visual Perception
Visual Perception - physiology
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Summary: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.
ISSN:0096-1523
1939-1277
DOI:10.1037/0096-1523.27.6.1369