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Jacqueline Woolley, Chair The University of Texas at Austin, SEA 4.212, Austin, TX 78712 • (512) 475-7596

How higher order concepts modulate 'lower order' movements: ownership and reach-to-grasp actions.

Wed, May 8, 2013 • 12:00 PM - 1:30 PM • SEA 4.242

The University of Texas at Austin Center for Perceptual Systems Seminar Series by Ada Kritikos, Ph.D

Ada Kritikos, Ph.D., Department of Psychology, University of Queenslnd, Australia
"How higher order concepts modulate 'lower order' movements: ownership and reach-to-grasp actions."
Understanding who owns what is important for guiding appropriate action. Mug ownership, for example, influences how we position it in space. Specifically,  participants lift their own mug with greater acceleration and 'draw' it closer to themselves than the experimenter's mug. They also 'push' the experimenter's mug away from themselves and further to the right compared with other mugs. These spatial positioning effects are preserved, but the acceleration effect abolished, when the owner of the 'Other-Owned' mug was a known-but-absent confederate. These effects are not attributable to preference of a specific mug design, because choosing to use, rather than owning, a mug is not sufficient to elicit rightward drift or acceleration effects.  I will suggest that each effect described may reflect separate and distinct mechanisms associated with socially related visuomotor processing.

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