Age-related decline of online visuomotor adaptation: a combined effect of deteriorations of motor anticipation and execution

Frontiers in Aging Neuroscience

Aging Neuroscience

Yong Xie¹  Weidong Ji²  Junsheng Liu³  Na Li³  Zhongting Chen⁴ 

[1] Key Laboratory of Space Active Opto-Electronics Technology, Shanghai Institute of Technical Physics, Chinese Academy of Sciences, Shanghai, China;Shanghai Changning Mental Health Center, Shanghai, China;Shanghai Changning Mental Health Center, Shanghai, China;Shanghai Key Laboratory of Brain Functional Genomics, Affiliated Mental Health Center, School of Psychology and Cognitive Science, East China Normal University, Shanghai, China;Shanghai Key Laboratory of Brain Functional Genomics, Affiliated Mental Health Center, School of Psychology and Cognitive Science, East China Normal University, Shanghai, China;

关键词: aging;    visuomotor adaptation;    eye movement;    manual tracking;    online control;   

DOI  :  10.3389/fnagi.2023.1147079

 received in 2023-01-18, accepted in 2023-05-30,  发布年份 2023

来源: Frontiers

【 摘 要 】

The literature has established that the capability of visuomotor adaptation decreases with aging. However, the underlying mechanisms of this decline are yet to be fully understood. The current study addressed this issue by examining how aging affected visuomotor adaptation in a continuous manual tracking task with delayed visual feedback. To distinguish separate contributions of the declined capability of motor anticipation and deterioration of motor execution to this age-related decline, we recorded and analyzed participants' manual tracking performances and their eye movements during tracking. Twenty-nine older people and twenty-three young adults (control group) participated in this experiment. The results showed that the age-related decline of visuomotor adaptation was strongly linked to degraded performance in predictive pursuit eye movement, indicating that declined capability motor anticipation with aging had critical influences on the age-related decline of visuomotor adaptation. Additionally, deterioration of motor execution, measured by random error after controlling for the lag between target and cursor, was found to have an independent contribution to the decline of visuomotor adaptation. Taking these findings together, we see a picture that the age-related decline of visuomotor adaptation is a joint effect of the declined capability of motor anticipation and the deterioration of motor execution with aging.

【 授权许可】

Unknown   
Copyright © 2023 Li, Liu, Xie, Ji and Chen.