TY - JOUR
T1 - Fitts' law holds for pointing movements under conditions of restricted visual feedback
AU - Wu, Jinglong
AU - Yang, Jiajia
AU - Honda, Taichi
N1 - Funding Information:
This study was supported in part by a Grant-in-Aid for Scientific Research (B) 21404002 , Japan and AA Science Platform Program of the Japan Society for the Promotion Science. We also thank the individuals who participated in this study and the staff of the Wu Laboratory for their assistance with data collection.
PY - 2010/12
Y1 - 2010/12
N2 - Fitts' law robustly predicts the time required to move rapidly to a target. However, it is unclear whether Fitts' law holds for visually guided actions under visually restricted conditions. We tested whether Fitts' law applies under various conditions of visual restriction and compared pointing movements in each condition. Ten healthy participants performed four pointing movement tasks under different visual feedback conditions, including full-vision (FV), no-hand-movement (NM), no-target-location (NT), and no-vision (NV) feedback conditions. The movement times (MTs) for each task exhibited highly linear relationships with the index of difficulty (r2> 96). These findings suggest that pointing movements follow Fitts' law even when visual feedback is restricted or absent. However, the MTs and accuracy of pointing movements decreased for difficult tasks involving visual restriction.
AB - Fitts' law robustly predicts the time required to move rapidly to a target. However, it is unclear whether Fitts' law holds for visually guided actions under visually restricted conditions. We tested whether Fitts' law applies under various conditions of visual restriction and compared pointing movements in each condition. Ten healthy participants performed four pointing movement tasks under different visual feedback conditions, including full-vision (FV), no-hand-movement (NM), no-target-location (NT), and no-vision (NV) feedback conditions. The movement times (MTs) for each task exhibited highly linear relationships with the index of difficulty (r2> 96). These findings suggest that pointing movements follow Fitts' law even when visual feedback is restricted or absent. However, the MTs and accuracy of pointing movements decreased for difficult tasks involving visual restriction.
KW - Fitts' law
KW - Motor control
KW - Movement time
KW - Pointing movement
KW - Visual restriction
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U2 - 10.1016/j.humov.2010.03.009
DO - 10.1016/j.humov.2010.03.009
M3 - Article
C2 - 20659774
AN - SCOPUS:78049272720
VL - 29
SP - 882
EP - 892
JO - Human Movement Science
JF - Human Movement Science
SN - 0167-9457
IS - 6
ER -