Authors: Sergio Chieffi Alessandro Iavarone Andrea Viggiano Marcellino Monda Sergio Carlomagno
Publish Date: 2012/05/11
Volume: 219, Issue: 4, Pages: 489-498
Abstract
Previous studies have shown that a flanking distractor produces a spatial bias during line bisection In the present study we investigated whether that bias depends on perceptual or motor components Participants were asked to bisect a horizontal line or to reach towards a dot with or without vision of their hand The line and the target could be flanked by a distractor Movement trajectories and endpoints were consistently deviated away from the location of the distractor in the bisection task but not in the reaching task irrespectively of whether the participants had online visual feedback from their moving hand It is suggested that flanking distractors influence perceptual localization of the subjective midpoint during line bisection
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