Hemisphere division and its effect on selective attention: a generality examination of Lavie's load theory

The International Journal of Neuroscience
Ritsuko NishimuraTakeshi Hatta

Abstract

The present study examined the role of visual presentation mode (unilateral vs. bilateral visual fields) on attentional modulation. We examined whether or not the presentation mode affects the compatibility effect, using a paradigm involving two task-relevant letter arrays. Sixteen participants identified a target letter among task-relevant letters while ignoring either a compatible or incompatible distracter letter that was presented to both hemispheres. Two letters arrays were presented to visual fields, either unilaterally or bilaterally. Results indicated that the compatibility effect was greater in bilateral than in unilateral visual field conditions. Findings support the assumption that the two hemispheres have separate attentional resources.

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Citations

Jun 29, 2010·Consciousness and Cognition·Ritsuko Nishimura, Kazuhito Yoshizaki

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