Right-handers' reaching in contralateral hemispace: a kinematic observation.(Report)

ABSTRACT. C. Gabbard and C. Helbig (2004) found, when examining seated participants' limb selection for reaching and grasping in hemispace, that right-handers preferred to switch to the nondominant left arm for objects located approximately 20[degrees] horizontally from body midline (90[degrees]) in left hemispace. In the present study, the authors examined 13 strongly lateralized seated right-handers' kinematics of reaching to object positions ranging from body midline to 40[degrees] horizontally in left hemispace. Participants executed faster reaches with the left arm than with the right arm to objects placed 20[degrees]-40[degrees] from midline, whereas they did not change ...

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