解决加减法计算问题的不同策略

发布时间：2018-05-03 22:13

本文选题：加法计算 + 减法计算　；参考：《北京工业大学学报》2017年04期

【摘要】：为了清楚人脑进行加法计算和减法计算的神经机制,探索加法计算和减法计算的不同策略引起对应脑区激活差异,采用思维的自适应控制-理性(adaptive control of thought-rational,ACT-R)建模结合行为实验的方法从更细时间微粒对人类进行加法计算和减法计算的脑区协同工作原理进行研究.行为实验结果反应时,加法运算的真实反应时为(1 812.14±224.14)ms;减法运算的真实反应时为(2 328.14±287.36)ms;加法运算的正确率为97.92%±2.67%,减法运算的正确率为74.38%±11.3%.ACT-R仿真实验结果为:ACT-R模拟反应时,加法运算为1 813.96 ms;减法运算为2 314.53 ms;模拟结果和真实结果的血氧水平依赖(blood oxygen level dependent,BOLD)信号变化率在左侧前额皮层(left prefrontal cortex,LPFC)脑区拟合结果为96%,在后顶叶(posterior parietal cortex,PPC)脑区拟合结果为98%.实验结果表明:人脑完成减法计算比完成加法计算更为复杂.
[Abstract]:In order to understand the neural mechanism of additive and subtraction calculations in human brain, different strategies of additive and subtraction calculations were explored, which resulted in different activation of corresponding brain regions. The adaptive control of thinking and rational adaptive control of thought ACT-RT are used to study the cooperative working principle of human brain region in the addition and subtraction of finer time particles. The true reaction time of addition operation is 1 812.14 卤224.14 Ms, the true reaction time of subtraction operation is 2 328.14 卤287.36 Ms, the correct rate of addition operation is 97.92% 卤2.67%, and the correct rate of subtraction operation is 74.38% 卤11.3%.ACT-R simulation reaction time. Addition operation was 1 813.96 Ms and subtraction operation was 2 314.53 Ms. The change rate of Bod) signal in left prefrontal cortex (left prefrontal cortexus) and posterior parietal cortexPPCs was 96% and 98%, respectively, in the left prefrontal cortex and in the posterior parietal cortexPPC. the results of simulation and real results showed that the change rate of Bod signals in the left prefrontal cortex was 96% and that in the posterior parietal cortexPPCs was 98%. The experimental results show that the human brain subtraction is more complicated than the addition.
【作者单位】：北京工业大学国际WIC研究院;前桥工业大学生命科学与信息工程系;
【基金】：国家“973”计划资助项目(2014CB744600)
【分类号】：R338;O121;TP18

【相似文献】