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Atten Percept Psychophys. 2014 Aug;76(6):1752-64. doi: 10.3758/s13414-014-0685-4.

Hitting ability and perception of object's size: evidence for a negative relation.

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Department of Psychology, University of Würzburg, Würzburg, Germany,


We examined the relation between motor performance and perception of object's size in near space. The general task was to repeatedly hit a target by means of pointing movements and to estimate target's size. In contrast to the results of previous studies, Experiment 1 and Experiment 2 revealed a negative relation between action ability and perceived target size: Participants who hit the target relatively often and whose motor variability was relatively low judged targets to be smaller than did participants whose motor performance was relatively poor. In Experiment 3, the size judgments were made in the presence of the target before, as well as after, pointing movements. The target was judged as smaller when it was easy, rather than difficult, to hit before as well as after the movement. Altogether, these results indicate that under certain conditions, an increased action ability reduces the apparent size of the actions' target objects.

[Indexed for MEDLINE]

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