TY - JOUR
T1 - Effects of aging on pointing movements under restricted visual feedback conditions
AU - Zhang, Liancun
AU - Yang, Jiajia
AU - Inai, Yoshinobu
AU - Huang, Qiang
AU - Wu, Jinglong
N1 - Funding Information:
We would like to thank the individuals who participated in this study and the staff of the Wu Laboratory for their assistance with data collection. This study received financial support from Grant-in-Aid for Scientific Research (B) 21404002 , Japan and Grant-in-Aid for Young Scientists (A) 24686034 , National Key Technologies R&D Program of China ( 2013BAK03B03 ) and National Natural Science Foundation of China ( 61473043 ).
Publisher Copyright:
© 2014 Elsevier B.V.
PY - 2015/4/1
Y1 - 2015/4/1
N2 - The goal of this study was to investigate the effects of aging on pointing movements under restricted visual feedback of hand movement and target location. Fifteen young subjects and fifteen elderly subjects performed pointing movements under four restricted visual feedback conditions that included full visual feedback of hand movement and target location (FV), no visual feedback of hand movement and target location condition (NV), no visual feedback of hand movement (NM) and no visual feedback of target location (NT). This study suggested that Fitts' law applied for pointing movements of the elderly adults under different visual restriction conditions. Moreover, significant main effect of aging on movement times has been found in all four tasks. The peripheral and central changes may be the key factors for these different characteristics. Furthermore, no significant main effects of age on the mean accuracy rate under condition of restricted visual feedback were found. The present study suggested that the elderly subjects made a very similar use of the available sensory information as young subjects under restricted visual feedback conditions. In addition, during the pointing movement, information about the hand's movement was more useful than information about the target location for young and elderly subjects.
AB - The goal of this study was to investigate the effects of aging on pointing movements under restricted visual feedback of hand movement and target location. Fifteen young subjects and fifteen elderly subjects performed pointing movements under four restricted visual feedback conditions that included full visual feedback of hand movement and target location (FV), no visual feedback of hand movement and target location condition (NV), no visual feedback of hand movement (NM) and no visual feedback of target location (NT). This study suggested that Fitts' law applied for pointing movements of the elderly adults under different visual restriction conditions. Moreover, significant main effect of aging on movement times has been found in all four tasks. The peripheral and central changes may be the key factors for these different characteristics. Furthermore, no significant main effects of age on the mean accuracy rate under condition of restricted visual feedback were found. The present study suggested that the elderly subjects made a very similar use of the available sensory information as young subjects under restricted visual feedback conditions. In addition, during the pointing movement, information about the hand's movement was more useful than information about the target location for young and elderly subjects.
KW - Aging
KW - Fitts' law
KW - Movement time
KW - Pointing movement
KW - Visual restriction
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U2 - 10.1016/j.humov.2014.11.009
DO - 10.1016/j.humov.2014.11.009
M3 - Article
C2 - 25506638
AN - SCOPUS:84916928349
SN - 0167-9457
VL - 40
SP - 1
EP - 13
JO - Human Movement Science
JF - Human Movement Science
ER -