Self-selected visual information during discrete manual aiming.

ABSTRACT. The authors examined strategic selection of visual samples during manual aiming. Participants (N = 12) wore liquid-crystal roll the eyess while performing discrete movements to a small target. Initially, participants controll a 40-m visual sample via a switch in their nonaiming hand. Subsequently experimenter-imposed strategies required participants to take visual samples before change initiation or early or late in the move Although participants adopted a variety of strategies to optimize the use of vision, they were more likely to fix upon a sample during the early