Manipulation with no or partial vision.
The present research investigated the role of vision in closed- and open-loop processing during manipulation. In Experiment 1, participants performed common manipulatory tasks with 100% accuracy in less than 1 s without vision. In Experiment 2, the effects of extensive practice of a peg-in-hole task were examined within 4 functionally significant stages of manipulation. Performance was consistently faster with than without vision in the prereach, grasp, and transport + insert stages; reverse effects were observed during the reach stage. In Experiment 3, the effects of practice with partial vision were examined: Participants initially learned the peg-in-hole task with full vision and then transferred to learning the same task with vision available only during 1 functional stage. Overall, performance was fastest when vision was limited to the prereach and reach stages.
Purdy
K A
KA
Department of Psychology, Queen's University, Kingston, Ontario, Canada. kpurdy@gw.uscs.edu
Lederman
S J
SJ
Klatzky
R L
RL
D000293:Adolescent; D000328:Adult; D005246:Feedback; D006801:Humans; D009068:Movement / Q000502:physiology; D010470:Perceptual Masking / Q000502:physiology*; D011597:Psychomotor Performance / Q000502:physiology*; D011897:Random Allocation; D013997:Time Factors; D014796:Visual Perception / Q000502:physiology*