珠心算儿童视觉空间注意ERP早成分研究

目的采用事件相关电位技术探讨珠心算训练对儿童视觉空间注意的影响,为相关教学与科研工作提供参考依据。方法从潍坊市北关街中心小学四～六年级学生中随机抽取14名珠心算儿童为被试,进行不同范围提示下视觉空间注意测验。结果视觉空间策略的使用对珠心算儿童的早期视觉空间注意有一定影响,后部P1波幅随提示范围的增大而减小,后部右脑区提示等级效应更明显;在前额区,视觉空间注意有效提示范围大小表现出不同的调节作用:前部N1波幅随提示等级的增大而增大,P2波幅随提示等级的减小而增大。结论珠心算训练对儿童视觉空间注意有一定影响。

Research of ERPs on the early process to visual spatial attention by mental abacus calculation children

Objective To explore the impact of mental abacus calculation on children’ s visual spatial attention by using event-related potential(ERP) technology.Methods The experiment of visual spatial attention in different spatial scaling cues was applied to 28 children with/without mental abacus calculation.Results The early visual spatial attention of children with mental abacus calculation was influenced by using visual space strategies,P1 components amplitudes increased and the latency decreased in occipital,occipital of left brain area was more obvious;visual spatial attention to the effective range of sizes suggested a different regulation in the prefrontal cortex: N1 amplitude of mental abacus calculation children was increased with the spatial scaling cues increased,but the P2 amplitude was reverse.The effect of spatial scaling cues to N1 amplitude was not significant to children without mental abacus calculation,P2 amplitude of the children without mental abacus calculation was increased with the spatial scaling cues increased.Conclusion The visual spatial attention could be influenced by abacus training of children.