An Electrophysiological Study of Object-Based Correspondence Effects: Is Visual Processing Modulated by the Intended Action? Public Deposited

http://ir.library.oregonstate.edu/concern/undergraduate_thesis_or_projects/xg94hq964

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  • Some studies have found that responses are faster when the orientation of an object’s graspable part corresponds with the response location than when it does not (i.e., the object-based correspondence effect). We examined Goslin et al.’s (2012) claim that the effect is the result of object-based attention (visual-action binding). As in their study, participants determined the category of the centrally located object (kitchen utensil vs. tool). The handle orientation (left vs. right) did or did not correspond with the response location (left vs. right). We found no correspondence effect on response time for either category. Consistent with the behavioral data, there was no correspondence effect in lateralized readiness potentials. The effect was also not evident in P1 and N2, thought to reflect the direction of visual/spatial attention. These findings are contradictory to those of Goslin et al. and provide no evidence that an intended grasping action modulates visual/spatial attention.
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