Why is there a left side underestimation in rod bisection? |
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| Authors: | J L Bradshaw G Nathan N C Nettleton L Wilson J Pierson |
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| Affiliation: | Department of Psychology, Monash University, Clayton, Victoria, Australia. |
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| Abstract: | Subjects set the extremities of a horizontal rod to appear equidistant from a central reference point, with or without central fixation. On either side, the contrast (salience) of the rod against the background was high or low. Extents to the left were set smaller than those to the right, an effect (LSU) which was stronger with central fixation, indicating that both hemispatial and anatomical pathway factors contribute. Reduced salience on the left increased rather than decreased the LSU, indicating the importance of attentional factors. |
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