摘要
为了探究连续触点运动中障碍物对个体运动轨迹的影响,采用运动捕捉系统及近红外光谱脑成像技术(fNIRS),监测并分析了20名普通大学生在有、无障碍物情境下完成连续触点运动时的运动轨迹及大脑皮层活动。结果发现:相比于无障碍物条件,当连续运动中有障碍物时,周围运动区间的平均运动高度更高;障碍物对后面区间内的运动高度的影响程度显著高于前面的区间。另外,个体在有障碍物条件下双侧背外侧前额叶及双侧布罗卡区岛盖部的激活强度显著低于无障碍物条件,且障碍物对个体平均运动高度的影响越大,右侧这两个区域的激活水平越低。这说明障碍物对其前后运动区间内的运动轨迹都产生了影响,支持了物体可供性及计划再利用的观点,背外侧前额叶及布罗卡区岛盖部可能参与了这一加工。
To study the influence of obstacles on individual movement track in continuous reach motion,in this study,we collected and analyzed the movement track and cerebral cortex activity data of 20 undergraduate who completed the continuous reach motion in the presence or absence of obstacles,with motion capture system and functional near-infrared spectroscopy(fNIRS).The results show that when there are obstacles in the process of continuous motion,the average motion height of the individual in the peripheral motion interval is higher,compared to the absence of obstacles;specifically the effect of obstacles on the height of motion in the back interval is significantly higher than that in the preceding interval.Additionally,the bilateral dorsolateral prefrontal and bilateral pars opercularis of Broca's area show significant decrease in activation in the presence of obstacles,compared to the absence of obstacles,and there is a significant negative correlation between the effect of obstacle on the average motor height and the activation of the right dorsolateral prefrontal and right pars opercularis of Broca's area.These findings imply that the obstacle affects the individual’s motion track in the forward and back movement interval,and the brain regions including dorsolateral prefrontal and pars opercularis of Broca's area are involved in this process.These findings support the view that Object Affordance and Reuse of Previous Movement Plans.
作者
白学军
张琪涵
赵光
孙弘进
陈怡馨
孙世南
章鹏
宋璐
杨宇
原胜
BAI Xuejun;ZHANG Qihan;ZHAO Guang;SUN Hongjin;CHEN Yixin;SUN Shinan;ZHANG Peng;SONG Lu;YANG Yu;YUAN Sheng(Academy of Psychology and Behavior,Tianjin Normal University,Key Research Base of Humanities and Social Sciences of Ministry of Education,Tianjin 300074,China;Brain and Cognitive Neuroscience Research Center,Liaoning Normal University,Dalian 116029,China;Department of Psychology,Neuroscience and Behaviour,McMaster University,Canada ONL8S4L8)
出处
《心理与行为研究》
CSSCI
北大核心
2019年第2期145-152,共8页
Studies of Psychology and Behavior
基金
教育部人文社会科学重点研究基地重大项目(18JJD190001)
"长江学者奖励计划"特聘教授项目(T2017120)资助
