Configuration specificity in bisection acuity.

摘要: Abstract Crucial for the perception of form are spatial relationships between elements a visual stimulus. To investigate mechanisms involved in coding distance stimuli, thresholds detecting whether central marker accurately bisects interval were compared variety configurations. Thresholds best when all three members bisection configuration identical. Performance is impaired, often by as much factor two, outer delimiters differ from either length, orientation or contrast polarity. Illusory contours act poorly borders line. Disparity not affected differences test and flanking lines. Because peripheral vision acuity improves with practice, transfer training configurations can be used to gauge overlap neural processing mechanisms. Transfer complete only patterns where markers similar, reduced 20° absent they orthogonal. The dependence discrimination on similarity stimulus demonstrates that encoding location extent coupled other properties