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Perceiving the center of irregular contour quadrangles

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image of Spatial Vision
For more content, see Multisensory Research and Seeing and Perceiving.

This investigation examined how subjects perceived and localized the centers of irregular quadrangles. Five contour figures in four orientations were used. Seventeen subjects localized the centers of the figures in each orientation, three times. The estimated positions were found to be distributed according to the two-dimensional normal law. The mean position of the perceived center was very close to the centroid of the figures if they were considered flat homogeneous bodies. The orientation of the figures influenced the distributions of the estimates. The axis of maximal variance of the estimates was very close to the axis of orientation of the figures.

Affiliations: 1: Institute of Physiology, Bulgarian Academy of Sciences, 1113, Sofia, Bulgaria


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